US7092122B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image processing device and method
Assignee: Fujifilm Corp
•
Filing: 2001-07-18
•
Granted: 2006-08-15
•
Expires: 2021-07-18
Abstract
Abstract In order to achieve to adjust saturation of an image without leading to a deterioration in image quality, there is provided an image processing device and method in which a conversion data has a conversion characteristic which suppresses a change in saturation in a visible image for pixels belonging to a predetermined color region, and in order to achieve that changes in image quality which accompany conversion of gradation of an image data can be accurately corrected, there is provided an image processing device and method in which one of reconverting the image data which is converted or controlling a conversion characteristic is performed, such that changes in a ratio of a difference, of each of color components, with respect to gray of each pixel of the image data, which changes accompany conversion of the gradation of the image data, are corrected.
Inventors
- 👤 Yasuharu Iwaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:07
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6027; H04N1/6002; H04N1/6005; H04N1/62; H04N1/628
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
140 words
An image processing device including a storing section which stores conversion data of a conversion characteristic which changes, in units of respective pixels and by a predetermined amount, saturation, in a visible image, of image data used in output of the visible image; and a converting section which converts the image data used in output of the visible image in accordance with the conversion data stored in the storing section, wherein the conversion data stored in the storing section has a conversion characteristic which suppresses a change in saturation in the visible image for pixels belonging to a predetermined color region and in a vicinity of a border of the predetermined color region, the degree of suppression of change in saturation is greater the closer to a center of the predetermined color region than at the edge of the border.
Claim 2
Dependent Claim
140 words
An image processing device including a storing section which stores conversion data of a conversion characteristic which changes, in units of respective pixels and by a predetermined amount, saturation, in a visible image, of image data used in output of the visible image; and a converting section which converts the image data used in output of the visible image in accordance with the conversion data stored in the storing section, wherein the conversion data stored in the storing section has a conversion characteristic which suppresses a change in saturation in the visible image for pixels belonging to a predetermined color region and in a vicinity of a border of the predetermined color region, the degree of suppression of change in saturation is greater the closer to a center of the predetermined color region than at the edge of the border.
Claim 3
Dependent Claim
31 words
An image processing device according to claim 1 , wherein the predetermined color region is a region in which a hue angle in the visible image falls within a predetermined range.
Claim 4
Dependent Claim
20 words
An image processing device according to claim 2 , wherein the predetermined range is a range corresponding to skin color.
Claim 5
Dependent Claim
44 words
An image processing device according to claim 1 , wherein the predetermined color region includes at least one of a low saturation region where saturation in the visible image is low, and a high saturation region where saturation in the visible image is high.
Claim 6
Dependent Claim
44 words
An image processing device according to claim 1 , wherein the predetermined color region includes at least one of a high lightness region where lightness in the visible image is high, and a low lightness region where lightness in the visible image is low.
Claim 7
Dependent Claim
50 words
An image processing device according to claim 1 , wherein the conversion data is data which makes correspond a color value before a saturation change and a color value after the saturation change, when color values in the image data are changed such that saturation in the visible image changes.
Claim 8
Dependent Claim
44 words
An image processing device according to claim 1 , wherein the conversion characteristic of the conversion data is set, on the basis of a color reproduction gamut in an output form of the visible image, such that a change in saturation is not saturated.
Claim 9
Dependent Claim
73 words
An image processing device according to claim 1 , further comprising: an instructing section for instructing a saturation change amount, wherein a plurality of types of conversion data having respectively different saturation change amounts are stored in the storing section, and the converting section converts image data by using, among the plurality of types of conversion data, conversion data which corresponds to a saturation change amount which is instructed via the instructing section.
Claim 10
Dependent Claim
114 words
An image processing device according to claim 8 , wherein the saturation change amounts of the plurality of types of conversion data are respectively different by greater than or equal to a predetermined value, and in a case in which the saturation change amount instructed via the instructing section is a substantially intermediate value of saturation change amounts corresponding to any of the plurality of types of conversion data, the converting section, on the basis of conversion data corresponding to a saturation change amount which approximates the instructed saturation change amount, determines, by interpolation, conversion data corresponding to the instructed saturation change amount, and converts the image data by using the determined conversion data.
Claim 11
Dependent Claim
99 words
An image processing device according to claim 1 , wherein a plurality of types of output forms having respectively different color reproduction gamut of the visible image are prepared as output forms of the visible image, and on the basis of the color reproduction ranges of the plurality of types of output forms, the storing section stores a plurality of types of conversion data whose conversion characteristics are set such that a change in saturation does not become saturated, and the converting section converts the image data by using conversion data corresponding to an output form which is used.
Claim 12
Dependent Claim
72 words
An image processing device according to claim 1 , further comprising: a designating section for designating a color region for which a change in saturation is to be suppressed; and a generating section for generating conversion data of a conversion characteristic which suppresses a change in saturation in the visible image, for pixels belonging to at least one of the predetermined color region and a color region designated via the designating section.
Claim 13
Dependent Claim
42 words
An image processing device according to claim 1 , further comprising: a display section for displaying an image; and a display control section for making the display section display an image expressed by image data which is converted by the converting section.
Claim 14
Dependent Claim
127 words
An image processing method in which conversion data of a conversion characteristic which changes, in units of respective pixels and by a predetermined amount, saturation, in a visible image, of image data used in output of the visible image, is stored, and the image data used in output of the visible image is converted in accordance with the stored conversion data, wherein the stored conversion data has a conversion characteristic which suppresses a change in saturation in the visible image for pixels belonging to a predetermined color region and in a vicinity of a border of the predetermined color region, the degree of suppression of change in saturation is greater the closer to a center of the predetermined color region than at the edge of the border.
Claim 15
Dependent Claim
127 words
An image processing method in which conversion data of a conversion characteristic which changes, in units of respective pixels and by a predetermined amount, saturation, in a visible image, of image data used in output of the visible image, is stored, and the image data used in output of the visible image is converted in accordance with the stored conversion data, wherein the stored conversion data has a conversion characteristic which suppresses a change in saturation in the visible image for pixels belonging to a predetermined color region and in a vicinity of a border of the predetermined color region, the degree of suppression of change in saturation is greater the closer to a center of the predetermined color region than at the edge of the border.
References Cited (Backward Citations)
US4745467A
Cited
US5181105A
Cited
JPH05328132A
Cited
US5384601A
Cited
JPH06124329A
Cited
US5657758A
Cited
US5940530A
Cited
US6163321A
Cited
US6088137A
Cited
US5966222A
Cited
US6160912A
Cited
US6476877B2
Cited
US6445816B1
Cited
US6292574B1
Cited
US6272239B1
Cited
US20010016054A1
Cited
US6603878B1
Cited
US6697537B2
Cited
US6466186B1
Cited
US6813043B1
Cited
US6631206B1
Cited
US6791716B1
Cited
US6850342B2
Cited
US20020005965A1
Cited
US6711286B1
Cited
US6868179B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-08-14 | 2010-02-13 | 2010-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-08-14 | 2014-02-13 | 2014-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-08-14 | 2018-02-13 | 2018-08-15 | $7700.00 | Window Closed / Lapsed |