Patent US5671750A successfully refreshed from Google Patents.
Patent EP0624028A1 successfully refreshed from Google Patents.
EP0624028A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and associated apparatus which achieve imaging device/media compatibility and color appearance matching
Assignee: Eastman Kodak Co
•
Filing: 1994-05-06
•
Granted: —
•
Expires: 2014-05-06
Abstract
Abstract Methods and means are described for producing intermediary image-bearing signals and/or encoded data, compatible for subsequent imaging applications, from disparate and inherently incompatible types of input imaging devices and media. Application of the methods and means of the invention produces intermediary image-bearing signals and/or data that can be output onto any of a plurality of image-receptive media and/or image-forming devices such that any output image will match the appearance of any input image. Intermediary data for images or portions thereof derived from disparate input media and/or devices may be merged together to produce composite images of homogeneous and appropriate appearance. Intermediary image-bearing signals and/or data can also be adjusted and manipulated without requiring references to the origin of said signals and/or data. Intermediary image-bearing signals and/or data may be stored for later use without requiring documentation of the origin of the input sources from which they were derived.
Inventors
- 👤 Edward J. C/O Eastman Kodak Company Giorgianni
- 👤 Thomas Ethan C/O Eastman Kodak Company Madden
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 20:28
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6083; H04N1/6088; H04N1/603; H04N1/6052; H04N1/6055
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
37 words
A color encoding system including colorimetric values specified for an encoding viewing environment, wherein said is defined in terms of associated viewing flare characteristics, associated relative luminances of images and image surrounds, and associated adaptive white point.
Claim 2
Dependent Claim
54 words
An electronic imaging system comprising color encoding incorporating colorimetric values associated with an encoding viewing environment, at least one input means for providing image-bearing signals from input images, said input images associated with at least one input viewing environment, and at least one transformation for transforming said input image-bearing signals to color encoding values.
Claim 3
Dependent Claim
59 words
An electronic imaging system comprising: color encoding means incorporating colorimetric values associated with an encoding viewing environment; at least one output means for providing image-bearing signals for producing output images, said output images associated with at least one output viewing environment; and at least one transformation means for transforming values from said color encoding means to output image-bearing signals.
Claim 4
Dependent Claim
66 words
An electronic imaging system comprising at least one input means for providing image-bearing signals from input images, said input images associated with at least one input viewing environment, and at least one transformation for transforming said input image bearing-signals to color encoding values incorporating corresponding colorimetric values required to match, in an encoding viewing environment, the appearance of said input images in said input viewing environments.
Claim 5
Dependent Claim
77 words
An electronic imaging system comprising at least one input means for providing image-bearing signals from input images from at least one first imaging means, and at least one transformation for transforming said input image bearing-signals to color encoding values incorporating corresponding colorimetric values required to match, in an encoding viewing environment, the appearance of subsequent images, associated with at least one input viewing environment, rendered from said first imaging means by at least one second imaging means.
Claim 6
Dependent Claim
77 words
An electronic imaging system comprising: color encoding means incorporating colorimetric values associated with an encoding viewing environment; at least one transformation means for transforming values from said color encoding means to output image-bearing signals required to produce, using an output means, output images which match, in an associated output viewing environment, the appearance corresponding to said values from said color encoding means; and at least one output means for producing said output images from said image-bearing signals.
Claim 7
Independent Claim
225 words
A method for forming at least one transformation for transforming image bearing-signals derived from images formed by an imaging means, said images associated with an input viewing environment, to color encoding values incorporating corresponding colorimetric values required to match, in an encoding viewing environment, the appearance of said images in said input viewing environment, comprising the steps of: a) generating test colors, using said imaging means, which sample the color range of said imaging means; b) determining colorimetric values of said test colors for the illuminant associated with said input viewing environment; c) adjusting said colorimetric values in accordance with the difference in the viewing flare characteristics associated with said input and said encoding viewing environments to form flare-adjusted colorimetric values; d) adjusting said flare-adjusted colorimetric values in accordance with the difference between the relative luminances of the light illuminating images and the light illuminating the areas immediately surrounding images associated with said input and said encoding viewing environments to form surround-adjusted colorimetric values; e) adjusting said surround-adjusted colorimetric values in accordance with the difference between the adaptive white points associated with said input and said encoding viewing environments to form color encoding values; f) sensing said test colors by image sensing means to form image-bearing signals; and g) forming at least one transformation by relating said formed image-bearing signals to said color encoding values.
Claim 8
Independent Claim
252 words
A method for forming at least one transformation for transforming image bearing-signals derived from a first imaging means, to color encoding values incorporating corresponding colorimetric values required to match, in an encoding viewing environment, the appearance of subsequent images rendered from said first imaging means by a second imaging means, said subsequent images associated with an input viewing environment, comprising the steps of: a) generating test colors, using said first imaging means, said test colors representing samples of the color range of said first imaging means; b) forming rendered test colors on said second imaging means from said first imaging means test colors; c) determining the colormetric values of said rendered test colors for the illuminant associated with said input viewing environment; d) adjusting said colorimetric values in accordance with the difference in the viewing flare characteristics associated with said input and said encoding viewing environments to form flare-adjusted colorimetric values; e) adjusting said flare-adjusted colorimetric values in accordance with the difference between the relative luminances of the light illuminating images and the light illuminating the areas immediately surrounding images associated with said input and said encoding viewing environments to form surround-adjusted colorimetric values; f) adjusting said surround-adjusted colorimetric values in accordance with the difference between the adaptive white points associated with said input and said encoding viewing environments to form color encoding values; g) sensing said generated test colors to form image-bearing signals; and h) forming at least one transformation by relating said formed image-bearing signals to said color encoding values.
Claim 9
Independent Claim
243 words
A method for forming at least one transformation for transforming image bearing-signals derived from an electronic imaging source, to color encoding values incorporating corresponding colorimetric values required to match, in an encoding viewing environment, the appearance of images subsequently rendered from said electronic imaging source by an image rendering means, said subsequent images associated with an input viewing environment, comprising the steps of: a) generating test image values representing the image value range of said electronic imaging source; b) forming rendered test colors on said image rendering means from said generated test image values; c) determining colorimetric values of said rendered test colors for the illuminant associated with said input viewing environment; d) adjusting said colorimetric values in accordance with the difference in the viewing flare characteristics associated with said input and said encoding viewing environments to form flare-adjusted colorimetric values; e) adjusting said flare-adjusted colorimetric values in accordance with the difference between the relative luminances of the light illuminating images and the light illuminating the areas immediately surrounding images associated with said input and said encoding viewing environments to form surround-adjusted colorimetric values; f) adjusting said surround-adjusted colorimetric values in accordance with the difference between the adaptive white points associated with said input and said encoding viewing environments to form color encoding values; g) forming image bearing signals from said generated test image values; and h) forming at least one transformation by relating said formed image-bearing signals to said color encoding values.
Claim 10
Independent Claim
188 words
A method for forming at least one transformation for transforming color encoding values representative of the appearance of images viewed in a viewing environment associated with said color encoding values to corresponding colorimetric values required to match, in an output viewing environment, the appearance represented by said color encoding values, comprising the steps of: a) generating test color encoding values representing the color encoding value range; b) adjusting said test color encoding values in accordance with the difference in the viewing flare characteristics associated with said encoding and said output viewing environments to form flare-adjusted colorimetric values; c) adjusting said flare-adjusted colorimetric values in accordance with the difference between the relative luminances of the light illuminating images and the light illuminating the areas immediately surrounding images associated with said encoding and said output viewing environments to form surround-adjusted colorimetric values; d) adjusting said surround-adjusted colorimetric values in accordance with the difference between the adaptive white points associated with said encoding and said output viewing environments to form corresponding colorimetric values; and e) forming at least one transformation by relating said color encoding values to said corresponding colorimetric values.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.