Image-processing method, image-processing device, and storage medium

Claim 2

An image-processing method for performing color matching using a source profile and an output profile, said method comprising the steps of: determining the type of input image, based on a rendering command indicating the input image; correcting input image data in accordance with the source profile when it is determined in said determining step that the input image is a photograph image; calculating a feature quantity of the input image based on the corrected input image data; performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and performing a color matching process on the input image data when it is determined in said determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined in said determining step that the input image is a photograph image.

Claim 3

An image-processing method according to claim 1 , wherein the correction of the input image data in accordance with the source profile is based on a gamma value described in the source profile.

Claim 4

An image-processing method according to claim 1 , wherein the correction of the input image data in accordance with the source profile is based on a white point described in the source profile.

Claim 5

An image-processing method according to claim 1 , wherein the color matching process is performed according to the type of the input image.

Claim 6

An image-processing method for performing color matching using a source profile and an output profile, said method comprising the steps of: determining the type of input image based on a rendering command indicating the input image; correcting input image data in accordance with the source profile when it is determined in said determining step that the input image is a photograph image; calculating a feature quantity of the input image based on the corrected input image data; performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and performing a color matching process on the input image data when it is determined in said determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined in said determining step that the input image is a photograph image, wherein said calculation step includes a substep of creating a histogram based on the corrected input image data, and a substep of calculating a high-light point and a shadow point.

Claim 7

An image-processing method for performing color matching using a source profile and an output profile, said method comprising the steps of: determining the type of input image based on a rendering command indicating the input image; correcting input image data in accordance with the source profile when it is determined in said determining step that the input image is a photograph image; calculating a feature quantity of the input image based on the corrected input image data; performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and performing a color matching process on the input image data when it is determined in said determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined in said determining step that the input image is a photograph image, wherein said calculation step includes a substep of creating a histogram based on the corrected input image data, and a substep of calculating a high-light point and a shadow point.

Claim 8

An image-processing device for performing color matching using a source profile and an output profile, said device comprising: determination means for determining the type of input image, based on a rendering command indicating the input image; correction means for correcting input image data in accordance with the source profile when it is determined by said determination means that the input image data is a photograph image; calculation means for calculating a feature quantity of the input image based on the corrected input image data; image correction processor means for performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and color matching processor means for performing a color matching process on the input image data when it is determined by said determination means that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said determination means that the input image is a photograph image.

Claim 9

An image-processing device for performing color matching using a source profile and an output profile, said device comprising: determination means for determining the type of input image, based on a rendering command indicating the input image; correction means for correcting input image data in accordance with the source profile when it is determined by said determination means that the input image data is a photograph image; calculation means for calculating a feature quantity of the input image based on the corrected input image data; image correction processor means for performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and color matching processor means for performing a color matching process on the input image data when it is determined by said determination means that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said determination means that the input image is a photograph image.

Claim 10

A storage medium for storing a computer-readable software program of an image-processing method for performing color matching using a source profile and an output profile, the software program comprising: code for a determining step, of determining the type of input image, based on a rendering command indicating the input image; code for a correction step, of correcting input image data in accordance with the source profile when it is determined by said code for a determining step that the input image is a photograph image; code for a calculation step, of calculating a feature quantity of the input image based on the input image data; code for an image correction step, of performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and code for a color matching step, of performing a color matching process on the input image data when it is determined by said code for determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said code for a determining step that the input image is a photograph image.

Claim 11

A storage medium for storing a computer-readable software program of an image-processing method for performing color matching using a source profile and an output profile, the software program comprising: code for a determining step, of determining the type of input image, based on a rendering command indicating the input image; code for a correction step, of correcting input image data in accordance with the source profile when it is determined by said code for a determining step that the input image is a photograph image; code for a calculation step, of calculating a feature quantity of the input image based on the input image data; code for an image correction step, of performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and code for a color matching step, of performing a color matching process on the input image data when it is determined by said code for determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said code for a determining step that the input image is a photograph image.

Claim 12

An image-processing apparatus for performing color matching using a source profile and an output profile, said apparatus comprising: a determination unit adapted to determine the type of input image, based on a rendering command indicating the input image; a correction unit adapted to correct input image data in accordance with the source profile when it is determined by said determination unit that the input image is a photograph image; a calculation unit adapted to calculate a feature quantity of the input image based on the corrected input image data; an image correction processor unit adapted to process an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and a color matching processor adapted to perform a color matching process on the input image data when it is determined by said determination unit that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said determination unit that the input image is a photograph image, wherein said calculation unit includes a histogram creation unit adapted to create a histogram based on the corrected input image data, and another calculation unit adapted to calculate a high-light point and a shadow point.

Claim 13

An image-processing apparatus for performing color matching using a source profile and an output profile, said apparatus comprising: a determination unit adapted to determine the type of input image, based on a rendering command indicating the input image; a correction unit adapted to correct input image data in accordance with the source profile when it is determined by said determination unit that the input image is a photograph image; a calculation unit adapted to calculate a feature quantity of the input image based on the corrected input image data; an image correction processor unit adapted to process an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and a color matching processor adapted to perform a color matching process on the input image data when it is determined by said determination unit that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said determination unit that the input image is a photograph image, wherein said calculation unit includes a histogram creation unit adapted to create a histogram based on the corrected input image data, and another calculation unit adapted to calculate a high-light point and a shadow point.

Claim 14

A storage medium for storing a computer-readable software program of an image-processing method for performing color matching using a source profile and an output profile, the software program comprising: code for a determining step, of determining the type of input image, based on a rendering command indicating the input image; code for a correction step, of correcting input image data in accordance with the source profile when it is determined by said code for a determining step that the input image is a photograph image; code for a calculation step, of calculating a feature quantity of the input image based on the input image data; code for an image correction step, of performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and code for a color matching step, of performing a color matching process on the input image data when it is determined by said code for determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said code for a determining step that the input image is a photograph image, wherein said code for a calculation step includes code for a substep of creating a histogram based on the corrected input image data, and code for a substep of calculating a high-light point and a shadow point.

Claim 15

A storage medium for storing a computer-readable software program of an image-processing method for performing color matching using a source profile and an output profile, the software program comprising: code for a determining step, of determining the type of input image, based on a rendering command indicating the input image; code for a correction step, of correcting input image data in accordance with the source profile when it is determined by said code for a determining step that the input image is a photograph image; code for a calculation step, of calculating a feature quantity of the input image based on the input image data; code for an image correction step, of performing an image correction process on the corrected input image data in accordance with a processing condition responsive to the feature quantity; and code for a color matching step, of performing a color matching process on the input image data when it is determined by said code for determining step that the input image is not a photograph image, and on the corrected input image data subjected to the image correction process when it is determined by said code for a determining step that the input image is a photograph image, wherein said code for a calculation step includes code for a substep of creating a histogram based on the corrected input image data, and code for a substep of calculating a high-light point and a shadow point.