Image processing method and apparatus
AssigneeCanon Kabushiki Kaisha
InventorsShuichi Kumada, Manabu Ohga
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AssigneeCanon Kabushiki Kaisha
InventorsShuichi Kumada, Manabu Ohga
Estimating the term…
When gamut mapping (hue restoration) defined by one Lab color space is applied in color matching under different reference white points, human vision perceives the hue as inconsistent. In view of this, input data which is dependent on a color space of an input device is converted by a first conversion LUT to color space data which is independent of any devices, based on a viewing condition at the time of viewing an input original. The device independent data is converted to data in the human color perception space by a forward converter, subjected to gamut mapping, and converted back to device independent data in the color space independent of any devices by an inverse converter, based on a viewing condition at the time of viewing an output original. Then, the device independent data is converted to output data in a color space which is dependent on an output device by a second conversion LUT.
An image processing method of outputting an image, on which a color conversion process in accordance with input and output image viewing conditions is performed by using a color perception model, to a monitor, comprising the steps of:
A computer readable medium comprising computer program codes, for a method of outputting an image, on which a color conversion process in accordance with input and output image viewing conditions is performed by using a color perception model, to a monitor, comprising process procedure code for:
A computer program product comprising computer program codes, for a method of outputting an image, on which a color conversion process in accordance with input and output image viewing conditions is performed by using a color perception model, to a monitor, comprising process procedure code for:
An image processing apparatus for outputting an image, on which a color conversion process in accordance with input and output image viewing conditions is performed by using a color perception model, to a monitor, said apparatus comprising:
Dependencies are inferred from the claim text.