| CPC H04N 1/6044 (2013.01) [H04N 1/6005 (2013.01); H04N 1/6008 (2013.01); H04N 1/6025 (2013.01)] | 7 Claims |
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1. An information processing device comprising:
an interface to receive color information on a specific color included in an inspection image, and to receive a determination condition for determining a color shift with respect to the specific color; and
a controller configured to:
determine, based on the color information and the determination condition received by the interface, test image data representing a plurality of test images to be formed by an image forming apparatus;
output the determined test image data to the image forming apparatus in order to form the plurality of test images;
acquire luminance data on the plurality of test images, the luminance data being output from a color sensor;
acquire spectral data on the plurality of test images, the spectral data being output from a spectroscopic sensor;
generate, based on the spectral data and the luminance data, a conversion condition for converting a reading result obtained by the color sensor;
acquire luminance data on an image to be formed by the image forming apparatus, the luminance data on the image to be formed by the image forming apparatus being output from the color sensor;
convert, based on the conversion condition, the luminance data on the image to be formed by the image forming apparatus; and
determine, based on converted luminance data and the determination condition, the color shift with respect to the specific color in the inspection image,
wherein the plurality of test images include;
a first test image of a first color in which a color difference from the specific color has a first value,
a second test image of a second color in which the color difference from the specific color has a second value,
a third test image of a third color in which the color difference from the specific color has a third value,
a fourth test image of a fourth color in which the color difference from the specific color has a fourth value,
a fifth test image of a fifth color in which the color difference from the specific color has a fifth value, and
a sixth test image of a sixth color in which the color difference from the specific color has a sixth value,
wherein the first value is smaller than a value of the color difference corresponding to the determination condition,
wherein the second value is larger than the value of the color difference corresponding to the determination condition,
wherein the third value is smaller than the value of the color difference corresponding to the determination condition,
wherein the fourth value is larger than the value of the color difference corresponding to the determination condition,
wherein the fifth value is smaller than the value of the color difference corresponding to the determination condition,
wherein the sixth value is larger than the value of the color difference corresponding to the determination condition,
wherein a lightness of the third color is different from a lightness of the first color,
wherein a chromaticity of the third color is different from a chromaticity of the first color,
wherein a lightness of the fourth color is different from a lightness of the second color,
wherein a chromaticity of the fourth color is different from a chromaticity of the second color,
wherein a lightness of the fifth color is different from the lightness of the first color,
wherein a chromaticity of the fifth color is different from the chromaticity of the first color,
wherein a lightness of the sixth color is different from the lightness of the second color, and
wherein a chromaticity of the sixth color is different from the chromaticity of the second color.
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