Patent US20030122845A1 successfully refreshed from Google Patents.
US20030122845A1
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Apparatus and method of controlling brightness of image
Assignee: Samsung Electronics Co Ltd
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Filing: 2002-11-12
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Granted: —
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Expires: 2022-11-12
Abstract
Abstract Provided are an image brightness controlling apparatus and method, and an adaptive brightness controlling apparatus and method based on the brightness degree and/or brightness range of an image. The image brightness controlling apparatus includes a brightness increment arithmetic unit for outputting a brightness increment for a pixel, and an individual component brightness increment arithmetic unit for outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel. The individual component brightness increment arithmetic unit multiplies the brightness increment of the pixel by each of the unit vectors of the components constituting the pixel to obtain the brightness increments of the individual components. The image brightness controlling apparatus further includes an adder for adding the components constituting the pixel to the brightness increments of the components. The image brightness controlling apparatus and the adaptive image brightness controlling apparatus can maintain the sense of color of an image (e.g., the hue or chroma of an image) while increasing the brightness degree and brightness range of an image.
Inventors
- 👤 Seong-deok Lee
- 👤 Chang-yeong Kim
- 👤 Yang-seock Seo
- 👤 Yong-in Han
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:16
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/77; H04N9/64; H04N9/68
Claims Analysis
Total Claims: 84
Claim 1
Independent Claim
49 words
1 . An image brightness controlling apparatus comprising: a brightness increment arithmetic unit for outputting a brightness increment for a pixel; and an individual component brightness increment arithmetic unit for outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel.
Claim 2
Dependent Claim
49 words
1 . An image brightness controlling apparatus comprising: a brightness increment arithmetic unit for outputting a brightness increment for a pixel; and an individual component brightness increment arithmetic unit for outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel.
Claim 3
Dependent Claim
47 words
2 . The image brightness controlling apparatus of claim 1 , wherein the individual component brightness increment arithmetic unit multiplies the brightness increment of the pixel by each of the unit vectors of the components constituting the pixel to obtain the brightness increments of the individual components.
Claim 4
Dependent Claim
29 words
3 . The image brightness controlling apparatus of claim 1 , further comprising an adder for adding the components constituting the pixel to the brightness increments of the components.
Claim 5
Dependent Claim
109 words
4 . An image brightness controlling apparatus comprising: a brightness difference arithmetic unit for outputting a brightness difference between a reference brightness and a brightness of an input signal; a brightness increment arithmetic unit for outputting a brightness increment corresponding to the brightness difference; an individual element brightness increment arithmetic unit for outputting brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and an arithmetic unit for outputting a signal whose brightness is increased from the brightness of the input signal in response to the input signal and the output signal of the individual element brightness increment arithmetic unit.
Claim 6
Dependent Claim
109 words
4 . An image brightness controlling apparatus comprising: a brightness difference arithmetic unit for outputting a brightness difference between a reference brightness and a brightness of an input signal; a brightness increment arithmetic unit for outputting a brightness increment corresponding to the brightness difference; an individual element brightness increment arithmetic unit for outputting brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and an arithmetic unit for outputting a signal whose brightness is increased from the brightness of the input signal in response to the input signal and the output signal of the individual element brightness increment arithmetic unit.
Claim 7
Dependent Claim
49 words
5 . The image brightness controlling apparatus of claim 1 , wherein the individual element brightness increment arithmetic unit multiplies the brightness increment of the input signal by each of the unit vectors of the elements constituting the input signal to obtain the brightness increments of the individual elements.
Claim 8
Dependent Claim
121 words
6 . An image brightness controlling apparatus comprising: a brightness arithmetic unit for outputting the brightness of an input signal; a reference value arithmetic unit for outputting a reference brightness for the brightness of an input signal; a brightness increment arithmetic unit for outputting a brightness increment corresponding to the difference between the reference brightness and the brightness of the input signal; an individual component brightness increment arithmetic unit for calculating the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and an arithmetic unit for adding the components constituting the input signal to the brightness increments output from the individual component brightness increment arithmetic unit to obtain a brightness-increased signal.
Claim 9
Dependent Claim
121 words
6 . An image brightness controlling apparatus comprising: a brightness arithmetic unit for outputting the brightness of an input signal; a reference value arithmetic unit for outputting a reference brightness for the brightness of an input signal; a brightness increment arithmetic unit for outputting a brightness increment corresponding to the difference between the reference brightness and the brightness of the input signal; an individual component brightness increment arithmetic unit for calculating the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and an arithmetic unit for adding the components constituting the input signal to the brightness increments output from the individual component brightness increment arithmetic unit to obtain a brightness-increased signal.
Claim 10
Dependent Claim
49 words
7 . The image brightness controlling apparatus of claim 6 , wherein the individual component brightness increment arithmetic unit multiplies the brightness increment of the input signal by each of the unit vectors of the elements constituting the input signal to obtain the brightness increments of the individual elements.
Claim 11
Dependent Claim
148 words
8 . An image brightness controlling apparatus comprising: a maximum component arithmetic unit for outputting the value of the maximum component among the components constituting an input signal; a reference value arithmetic unit for outputting a reference brightness value for the output value; a brightness difference arithmetic unit for outputting the difference between the reference brightness and the brightness of the maximum component; a brightness increment arithmetic unit for outputting a brightness increment corresponding to the brightness difference in response to the brightness difference and the components constituting the input signal; an RGB brightness increment arithmetic unit for calculating the brightness increments of the individual components constituting the input signal in response to the components constituting the input signal and the brightness increment received from the brightness increment arithmetic unit; and an adder for adding the components constituting the input signal to the brightness increments of the components.
Claim 12
Dependent Claim
148 words
8 . An image brightness controlling apparatus comprising: a maximum component arithmetic unit for outputting the value of the maximum component among the components constituting an input signal; a reference value arithmetic unit for outputting a reference brightness value for the output value; a brightness difference arithmetic unit for outputting the difference between the reference brightness and the brightness of the maximum component; a brightness increment arithmetic unit for outputting a brightness increment corresponding to the brightness difference in response to the brightness difference and the components constituting the input signal; an RGB brightness increment arithmetic unit for calculating the brightness increments of the individual components constituting the input signal in response to the components constituting the input signal and the brightness increment received from the brightness increment arithmetic unit; and an adder for adding the components constituting the input signal to the brightness increments of the components.
Claim 13
Dependent Claim
94 words
9 . An image brightness controlling apparatus comprising: a brightness parameter arithmetic unit for outputting a brightness parameter for an input image signal composed of a plurality of elements; a reference value arithmetic unit for outputting a reference brightness value for the output brightness parameter; a brightness improvement ratio divider for dividing the reference brightness value by the brightness parameter output from the brightness parameter arithmetic unit to obtain a brightness improvement ratio; and an individual element multiplier for multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 14
Dependent Claim
94 words
9 . An image brightness controlling apparatus comprising: a brightness parameter arithmetic unit for outputting a brightness parameter for an input image signal composed of a plurality of elements; a reference value arithmetic unit for outputting a reference brightness value for the output brightness parameter; a brightness improvement ratio divider for dividing the reference brightness value by the brightness parameter output from the brightness parameter arithmetic unit to obtain a brightness improvement ratio; and an individual element multiplier for multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 15
Dependent Claim
36 words
10 . The image brightness controlling apparatus of claim 9 , wherein the brightness parameter arithmetic unit determines as the brightness parameter the value of the maximum element among the elements constituting the input image signal.
Claim 16
Dependent Claim
48 words
11 . The image brightness controlling apparatus of claim 9 , wherein the reference value arithmetic unit calculates the reference brightness value corresponding to the brightness parameter output from the brightness parameter arithmetic unit using a plurality of reference brightness value functions corresponding to a received control signal.
Claim 17
Dependent Claim
85 words
12 . An image brightness controlling apparatus depending on the brightness degree of an image, the apparatus comprising: a brightness improvement parameter setting portion for setting a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to an input image signal composed of a plurality of elements and a control signal; and a brightness controller for controlling the brightness of an image in response to the brightness improvement parameter and the input image signal.
Claim 18
Dependent Claim
85 words
12 . An image brightness controlling apparatus depending on the brightness degree of an image, the apparatus comprising: a brightness improvement parameter setting portion for setting a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to an input image signal composed of a plurality of elements and a control signal; and a brightness controller for controlling the brightness of an image in response to the brightness improvement parameter and the input image signal.
Claim 19
Dependent Claim
36 words
13 . The image brightness controlling apparatus of claim 12 , further comprising an RGB signal transformer for transforming the input image signal into a luminance signal if the input image signal is an RGB signal.
Claim 20
Dependent Claim
96 words
14 . The image brightness controlling apparatus of claim 12 , wherein the brightness controller comprises: a brightness parameter arithmetic unit for outputting a brightness parameter for the input image signal; a reference value arithmetic unit for outputting a reference brightness value for the output brightness parameter; a brightness improvement ratio divider for dividing the reference brightness value by the brightness parameter output from the brightness parameter arithmetic unit to obtain a brightness improvement ratio; and an individual element multiplier for multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 21
Dependent Claim
36 words
15 . The image brightness controlling apparatus of claim 14 , wherein the brightness parameter arithmetic unit determines as the brightness parameter the value of the maximum element among the elements constituting the input image signal.
Claim 22
Dependent Claim
55 words
16 . The image brightness controlling apparatus of claim 12 , wherein the brightness improvement parameter setting portion comprises: a mean brightness arithmetic unit for calculating the mean brightness of the input image signal; and a parameter arithmetic unit for calculating a brightness improvement parameter in response to the mean brightness and the control signal.
Claim 23
Dependent Claim
30 words
17 . The image brightness controlling apparatus of claim 16 , wherein the parameter arithmetic unit calculated the brightness improvement parameter by comparing the mean brightness with a reference brightness.
Claim 24
Dependent Claim
129 words
18 . An image brightness controlling apparatus depending on the brightness range of an image, the apparatus comprising: a parameter setting portion for setting the maximum and minimum values of the brightness of an input image signal and the maximum and minimum values of an extended brightness in response to the input image signal composed of a plurality of elements and a control signal; and a brightness range improving portion for outputting a luminance signal obtained by extending the brightness range of the input image signal, in response to the input image signal, the plurality of values output from the parameter setting portion, the predetermined maximum and minimum reference values of the brightness of the input image signal, and the maximum and minimum reference values of an extended brightness.
Claim 25
Dependent Claim
129 words
18 . An image brightness controlling apparatus depending on the brightness range of an image, the apparatus comprising: a parameter setting portion for setting the maximum and minimum values of the brightness of an input image signal and the maximum and minimum values of an extended brightness in response to the input image signal composed of a plurality of elements and a control signal; and a brightness range improving portion for outputting a luminance signal obtained by extending the brightness range of the input image signal, in response to the input image signal, the plurality of values output from the parameter setting portion, the predetermined maximum and minimum reference values of the brightness of the input image signal, and the maximum and minimum reference values of an extended brightness.
Claim 26
Dependent Claim
91 words
19 . The image brightness controlling apparatus of claim 18 , wherein the brightness range improving portion comprises: a brightness parameter arithmetic unit for outputting a brightness parameter for the input image signal; a range comparator for comparing the brightness parameter with the maximum and minimum values of the brightness of the input image signal to determine which section the brightness parameter belongs to and output section information; and a brightness signal arithmetic unit for outputting the brightness range-extended brightness parameter in response to the section information and the brightness parameter.
Claim 27
Dependent Claim
145 words
20 . The image brightness controlling apparatus of claim 18 , wherein the brightness range improving portion comprises: a brightness parameter arithmetic unit for outputting a brightness parameter for the input image signal; a range comparator for comparing the brightness parameter with the maximum and minimum values of the brightness of the input image signal to determine which section the brightness parameter belongs to and output section information; a brightness signal arithmetic unit for outputting a plurality of brightness parameters in which brightness ranges of individual sections are extended, in response to the brightness parameter; and a range selector for receiving the plurality of brightness parameters in which the brightness ranges of individual sections are extended and the section information and selecting a brightness parameter corresponding to the section information among the received brightness parameters to obtain the luminance signal whose brightness range is extended.
Claim 28
Dependent Claim
36 words
21 . The image brightness controlling apparatus of claim 19 , wherein the brightness parameter arithmetic unit determines as the brightness parameter the value of the maximum element among the elements constituting the input image signal.
Claim 29
Dependent Claim
36 words
22 . The image brightness controlling apparatus of claim 20 , wherein the brightness parameter arithmetic unit determines as the brightness parameter the value of the maximum element among the elements constituting the input image signal.
Claim 30
Dependent Claim
39 words
23 . The image brightness controlling apparatus of claim 19 , further comprising a brightness controller for controlling the brightness of an image in response to the brightness parameter, the brightness range-extended luminance signal, and the input image signal.
Claim 31
Dependent Claim
39 words
24 . The image brightness controlling apparatus of claim 20 , further comprising a brightness controller for controlling the brightness of an image in response to the brightness parameter, the brightness range-extended luminance signal, and the input image signal.
Claim 32
Dependent Claim
82 words
25 . The image brightness controlling apparatus of claim 23 , wherein the brightness controller comprises: a reference value arithmetic unit for outputting a reference brightness value for the brightness range-extended luminance signal; a brightness improvement ratio divider for dividing the reference brightness value by the brightness parameter output from the brightness parameter arithmetic unit to obtain a brightness improvement ratio; and an individual element multiplier for multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 33
Dependent Claim
51 words
26 . The image brightness controlling apparatus of claim 23 , wherein the parameter setting portion sets a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to the input image signal and a signal included in the control signal.
Claim 34
Dependent Claim
63 words
27 . The image brightness controlling apparatus of claim 26 , wherein the parameter setting portion comprises a mean brightness arithmetic unit for calculating the mean brightness of the input image signal and a parameter arithmetic unit for calculating a brightness improvement parameter in response to the mean brightness and the signal included in the control signal, and outputs the brightness improvement parameter.
Claim 35
Dependent Claim
30 words
28 . The image brightness controlling apparatus of claim 27 , wherein the parameter arithmetic unit calculates the brightness improvement parameter by comparing the mean brightness with a reference brightness.
Claim 36
Dependent Claim
41 words
29 . The image brightness controlling apparatus of claim 27 , wherein the parameter setting portion further comprising an RGB signal transformer for transforming the input image signal into a luminance signal if the input image signal is an RGB signal.
Claim 37
Dependent Claim
41 words
30 . The image brightness controlling apparatus of claim 28 , wherein the parameter setting portion further comprising an RGB signal transformer for transforming the input image signal into a luminance signal if the input image signal is an RGB signal.
Claim 38
Dependent Claim
35 words
31 . An image brightness controlling method comprising: outputting a brightness increment for a pixel; and outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel.
Claim 39
Dependent Claim
35 words
31 . An image brightness controlling method comprising: outputting a brightness increment for a pixel; and outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel.
Claim 40
Dependent Claim
51 words
32 . The image brightness controlling method of claim 31 , wherein, in the step of outputting brightness increments of individual components, the brightness increments of the individual components are obtained by multiplying the brightness increment of the pixel by each of the unit vectors of the components constituting the pixel.
Claim 41
Dependent Claim
26 words
33 . The image brightness controlling method of claim 31 , further comprising adding the components constituting the pixel to the brightness increments of the components.
Claim 42
Dependent Claim
82 words
34 . An image brightness controlling method comprising: obtaining the difference between a reference brightness and the brightness of an input signal; obtaining a brightness increment corresponding to the brightness difference; obtaining the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and obtaining a signal whose brightness is increased from the brightness of the input signal in response to the input signal and the obtained brightness increments of the individual elements.
Claim 43
Dependent Claim
82 words
34 . An image brightness controlling method comprising: obtaining the difference between a reference brightness and the brightness of an input signal; obtaining a brightness increment corresponding to the brightness difference; obtaining the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and obtaining a signal whose brightness is increased from the brightness of the input signal in response to the input signal and the obtained brightness increments of the individual elements.
Claim 44
Dependent Claim
88 words
35 . An image brightness controlling apparatus comprising: outputting the brightness of an input signal; outputting a reference brightness for the brightness of an input signal; outputting a brightness increment corresponding to the difference between the reference brightness and the brightness of the input signal; calculating the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and adding the components constituting the input signal to the calculated brightness increments of the individual elements to obtain a brightness-increased signal.
Claim 45
Dependent Claim
88 words
35 . An image brightness controlling apparatus comprising: outputting the brightness of an input signal; outputting a reference brightness for the brightness of an input signal; outputting a brightness increment corresponding to the difference between the reference brightness and the brightness of the input signal; calculating the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and adding the components constituting the input signal to the calculated brightness increments of the individual elements to obtain a brightness-increased signal.
Claim 46
Dependent Claim
116 words
36 . An image brightness controlling apparatus comprising: outputting the brightness of the maximum component among the components constituting an input signal; outputting a reference brightness for the brightness of the maximum component; outputting the difference between the reference brightness and the brightness of the maximum component; outputting a brightness increment corresponding to the brightness difference in response to the brightness difference and the components constituting the input signal; calculating the brightness increments of the individual components constituting the input signal in response to the components constituting the input signal and the brightness increment received from the brightness increment arithmetic unit; and adding the components constituting the input signal to the brightness increments of the components.
Claim 47
Dependent Claim
116 words
36 . An image brightness controlling apparatus comprising: outputting the brightness of the maximum component among the components constituting an input signal; outputting a reference brightness for the brightness of the maximum component; outputting the difference between the reference brightness and the brightness of the maximum component; outputting a brightness increment corresponding to the brightness difference in response to the brightness difference and the components constituting the input signal; calculating the brightness increments of the individual components constituting the input signal in response to the components constituting the input signal and the brightness increment received from the brightness increment arithmetic unit; and adding the components constituting the input signal to the brightness increments of the components.
Claim 48
Dependent Claim
65 words
37 . An image brightness controlling method comprising. calculating a brightness parameter for an input image signal composed of a plurality of elements; calculating a reference brightness value for the calculated brightness parameter; dividing the reference brightness value by the calculated brightness parameter to obtain a brightness improvement ratio; and multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 49
Dependent Claim
65 words
37 . An image brightness controlling method comprising. calculating a brightness parameter for an input image signal composed of a plurality of elements; calculating a reference brightness value for the calculated brightness parameter; dividing the reference brightness value by the calculated brightness parameter to obtain a brightness improvement ratio; and multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 50
Dependent Claim
38 words
38 . The image brightness controlling method of claim 37 , wherein, in the brightness parameter calculation step, the value of the maximum element among the elements constituting the input image signal is determined as the brightness parameter.
Claim 51
Dependent Claim
44 words
39 . The image brightness controlling method of claim 37 , wherein, in the reference value calculation step, the reference brightness value corresponding to the calculated brightness parameter is obtained using a plurality of reference brightness value functions corresponding to a received control signal.
Claim 52
Dependent Claim
75 words
40 . An adaptive image brightness controlling method based on the brightness degree of an image, the method comprising: setting a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to an input image signal composed of a plurality of elements and a control signal; and controlling the brightness of an image in response to the brightness improvement parameter and the input image signal.
Claim 53
Dependent Claim
75 words
40 . An adaptive image brightness controlling method based on the brightness degree of an image, the method comprising: setting a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to an input image signal composed of a plurality of elements and a control signal; and controlling the brightness of an image in response to the brightness improvement parameter and the input image signal.
Claim 54
Dependent Claim
32 words
41 . The adaptive image brightness controlling method of claim 40 , further comprising transforming the input image signal into a luminance signal if the input image signal is an RGB signal.
Claim 55
Dependent Claim
69 words
42 . The adaptive image brightness controlling method of claim 40 , wherein the brightness controlling step comprises: calculating a brightness parameter for the input image signal; calculating a reference brightness value for the output brightness parameter; dividing the reference brightness value by the calculated brightness parameter to obtain a brightness improvement ratio; and multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 56
Dependent Claim
39 words
43 . The adaptive image brightness controlling method of claim 42 , wherein, in the brightness parameter calculation step, the value of the maximum element among the elements constituting the input image signal is determined as the brightness parameter.
Claim 57
Dependent Claim
45 words
44 . The adaptive image brightness controlling method of claim 40 , wherein the brightness improvement parameter setting step comprises: calculating the mean brightness of the input image signal; and calculating a brightness improvement parameter in response to the mean brightness and the control signal.
Claim 58
Dependent Claim
35 words
45 . The adaptive image brightness controlling method of claim 44 , wherein, in the brightness improvement parameter calculation step, the brightness improvement parameter is obtained by comparing the mean brightness with a reference brightness.
Claim 59
Dependent Claim
125 words
46 . An adaptive image brightness controlling method depending on the brightness range of an image, the method comprising: setting parameters that are the maximum and minimum values of the brightness of an input image signal and the maximum and minimum values of an extended brightness in response to the input image signal composed of a plurality of elements and a control signal; and extending the brightness range of the input image signal in response to the input image signal, the plurality of values set in the previous step, the predetermined maximum and minimum reference values of the brightness of the input image signal, and the maximum and minimum reference values of an extended brightness, to obtain a luminance signal whose brightness range is extended.
Claim 60
Dependent Claim
125 words
46 . An adaptive image brightness controlling method depending on the brightness range of an image, the method comprising: setting parameters that are the maximum and minimum values of the brightness of an input image signal and the maximum and minimum values of an extended brightness in response to the input image signal composed of a plurality of elements and a control signal; and extending the brightness range of the input image signal in response to the input image signal, the plurality of values set in the previous step, the predetermined maximum and minimum reference values of the brightness of the input image signal, and the maximum and minimum reference values of an extended brightness, to obtain a luminance signal whose brightness range is extended.
Claim 61
Dependent Claim
77 words
47 . The adaptive image brightness controlling method of claim 46 , wherein the brightness range extending step comprises: outputting a brightness parameter corresponding to the input image signal; comparing the brightness parameter with the maximum and minimum values of the brightness of the input image signal to determine which section the brightness parameter belongs to and output section information; and outputting the brightness range-extended brightness parameter in response to the section information and the brightness parameter.
Claim 62
Dependent Claim
119 words
48 . The adaptive image brightness controlling method of claim 46 , wherein the brightness range extending portion comprises: outputting a brightness parameter for the input image signal; comparing the brightness parameter with the maximum and minimum values of the brightness of the input image signal to determine which section the brightness parameter belongs to and output section information; outputting a plurality of brightness parameters in which the brightness ranges of individual sections are extended in response to the brightness parameters; and receiving the plurality of brightness range-extended brightness parameters and the section information and selecting a brightness parameter corresponding to the section information among the received brightness parameters to obtain the luminance signal whose brightness range is extended.
Claim 63
Dependent Claim
39 words
49 . The adaptive image brightness controlling method of claim 47 , wherein in the brightness parameter calculation step, the value of the maximum element among the elements constituting the input image signal is determined as the brightness parameter.
Claim 64
Dependent Claim
39 words
50 . The adaptive image brightness controlling method of claim 48 , wherein in the brightness parameter calculation step, the value of the maximum element among the elements constituting the input image signal is determined as the brightness parameter.
Claim 65
Dependent Claim
39 words
51 . The adaptive image brightness controlling method of claim 47 , further comprising controlling the brightness of an image in response to the brightness parameter, the luminance signal whose brightness range is extended, and the input image signal.
Claim 66
Dependent Claim
39 words
52 . The adaptive image brightness controlling method of claim 48 , further comprising controlling the brightness of an image in response to the brightness parameter, the luminance signal whose brightness range is extended, and the input image signal.
Claim 67
Dependent Claim
67 words
53 . The adaptive image brightness controlling method of claim 51 , wherein the brightness controlling step comprises: outputting a reference brightness value for the brightness range-extended luminance signal; dividing the reference brightness value by the brightness parameter output from the brightness parameter arithmetic unit to obtain a brightness improvement ratio; and multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 68
Dependent Claim
54 words
54 . The adaptive image brightness controlling method of claim 51 , wherein in the parameter setting step, a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image is obtained in response to the input image signal and a signal included in the control signal.
Claim 69
Dependent Claim
47 words
55 . The adaptive image brightness controlling method of claim 54 , wherein the parameter setting step comprises: calculating the mean brightness of the input image signal; and calculating a brightness improvement parameter in response to the mean brightness and the signal included in the control signal.
Claim 70
Dependent Claim
34 words
56 . The adaptive image brightness controlling method of claim 55 , wherein in calculating a brightness improvement parameter, the brightness improvement parameter is obtained by comparing the mean brightness with a reference brightness.
Claim 71
Dependent Claim
37 words
57 . The adaptive image brightness controlling method of claim 55 , wherein the parameter setting step further comprises transforming the input image signal into a luminance signal if the input image signal is an RGB signal.
Claim 72
Dependent Claim
37 words
58 . The adaptive image brightness controlling method of claim 56 , wherein the parameter setting step further comprises transforming the input image signal into a luminance signal if the input image signal is an RGB signal.
Claim 73
Dependent Claim
46 words
59 . A computer readable recording medium that records a program for implementing an image brightness controlling method comprising: outputting a brightness increment for a pixel; and outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel.
Claim 74
Dependent Claim
46 words
59 . A computer readable recording medium that records a program for implementing an image brightness controlling method comprising: outputting a brightness increment for a pixel; and outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel.
Claim 75
Dependent Claim
93 words
60 . A computer readable recording medium that records a program for implement an image brightness controlling method comprising: obtaining the difference between a reference brightness and the brightness of an input signal; obtaining a brightness increment corresponding to the brightness difference; obtaining the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and obtaining a signal whose brightness is increased from the brightness of the input signal in response to the input signal and the obtained brightness increments of the individual elements.
Claim 76
Dependent Claim
93 words
60 . A computer readable recording medium that records a program for implement an image brightness controlling method comprising: obtaining the difference between a reference brightness and the brightness of an input signal; obtaining a brightness increment corresponding to the brightness difference; obtaining the brightness increments of individual elements constituting the input signal in response to the brightness increment for the input signal; and obtaining a signal whose brightness is increased from the brightness of the input signal in response to the input signal and the obtained brightness increments of the individual elements.
Claim 77
Dependent Claim
127 words
61 . A computer readable recording medium that stores a program for implementing an image brightness controlling apparatus comprising: outputting the brightness of the maximum component among the components constituting an input signal; outputting a reference brightness for the brightness of the maximum component; outputting the difference between the reference brightness and the brightness of the maximum component; outputting a brightness increment corresponding to the brightness difference in response to the brightness difference and the components constituting the input signal; calculating the brightness increments of the individual components constituting the input signal in response to the components constituting the input signal and the brightness increment received from the brightness increment arithmetic unit; and adding the components constituting the input signal to the brightness increments of the components.
Claim 78
Dependent Claim
127 words
61 . A computer readable recording medium that stores a program for implementing an image brightness controlling apparatus comprising: outputting the brightness of the maximum component among the components constituting an input signal; outputting a reference brightness for the brightness of the maximum component; outputting the difference between the reference brightness and the brightness of the maximum component; outputting a brightness increment corresponding to the brightness difference in response to the brightness difference and the components constituting the input signal; calculating the brightness increments of the individual components constituting the input signal in response to the components constituting the input signal and the brightness increment received from the brightness increment arithmetic unit; and adding the components constituting the input signal to the brightness increments of the components.
Claim 79
Dependent Claim
76 words
62 . A computer readable recording medium that stores a program for implementing an image brightness controlling method comprising: calculating a brightness parameter for an input image signal composed of a plurality of elements; calculating a reference brightness value for the calculated brightness parameter; dividing the reference brightness value by the calculated brightness parameter to obtain a brightness improvement ratio; and multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 80
Dependent Claim
76 words
62 . A computer readable recording medium that stores a program for implementing an image brightness controlling method comprising: calculating a brightness parameter for an input image signal composed of a plurality of elements; calculating a reference brightness value for the calculated brightness parameter; dividing the reference brightness value by the calculated brightness parameter to obtain a brightness improvement ratio; and multiplying each of the elements constituting the input image signal by the brightness improvement ratio.
Claim 81
Dependent Claim
86 words
63 . A computer readable recording medium that stores a program for implementing an adaptive image brightness controlling method based on the brightness degree of an image, the method comprising: setting a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to an input image signal composed of a plurality of elements and a control signal; and controlling the brightness of an image in response to the brightness improvement parameter and the input image signal.
Claim 82
Dependent Claim
86 words
63 . A computer readable recording medium that stores a program for implementing an adaptive image brightness controlling method based on the brightness degree of an image, the method comprising: setting a brightness improvement parameter for determining the degree of an increase or decrease in the brightness of an image, in response to an input image signal composed of a plurality of elements and a control signal; and controlling the brightness of an image in response to the brightness improvement parameter and the input image signal.
Claim 83
Dependent Claim
136 words
64 . A computer readable recording medium that stores a program for implementing an adaptive image brightness controlling method based on the brightness range of an image, the method comprising: setting parameters that are the maximum and minimum values of the brightness of an input image signal and the maximum and minimum values of an extended brightness in response to the input image signal composed of a plurality of elements and a control signal; and extending the brightness range of the input image signal in response to the input image signal, the plurality of values set in the previous step, the predetermined maximum and minimum reference values of the brightness of the input image signal, and the maximum and minimum reference values of an extended brightness, to obtain a luminance signal whose brightness range is extended.
Claim 84
Dependent Claim
136 words
64 . A computer readable recording medium that stores a program for implementing an adaptive image brightness controlling method based on the brightness range of an image, the method comprising: setting parameters that are the maximum and minimum values of the brightness of an input image signal and the maximum and minimum values of an extended brightness in response to the input image signal composed of a plurality of elements and a control signal; and extending the brightness range of the input image signal in response to the input image signal, the plurality of values set in the previous step, the predetermined maximum and minimum reference values of the brightness of the input image signal, and the maximum and minimum reference values of an extended brightness, to obtain a luminance signal whose brightness range is extended.
References Cited (Backward Citations)
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