Image processing apparatus, camera apparatus, image output apparatus, image processing method, color correction processing program and computer readable recording medium
First Claim
1. An image processing apparatus for performing color correction on input values of input signals in a predetermined region to be corrected in a color coordinate system, comprising:
- a movement amount calculating section for calculating movement amounts indicating how much the input values should be moved, in accordance with a distance between the input values and the center of the region to be corrected; and
a color correction section for performing color correction on the input values, by moving the input values based on the calculated movement amounts, wherein the movement amount calculating section calculates the movement amounts such that the movement amounts become smaller as the distance between the input values and the center of the region to be corrected becomes larger.
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Abstract
A correction processing section 1 performs a color correction such that a movement amount indicating how much input values of image signals should be moved for the purpose of color correction becomes smaller as the distance between the input values and the coordinates of the center of region to be corrected becomes larger in the region to be corrected, based on the input values of the input signals (L signal, *a signal, *b signal), conditional data (such as radius r) defining a local region to be corrected, the coordinates (Lc, *ac, *bc) of the center of the region to be corrected and the coordinates (Lm, *am, *bm) of the center of an ideal color region to be targeted.
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Citations
36 Claims
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1. An image processing apparatus for performing color correction on input values of input signals in a predetermined region to be corrected in a color coordinate system, comprising:
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a movement amount calculating section for calculating movement amounts indicating how much the input values should be moved, in accordance with a distance between the input values and the center of the region to be corrected; and
a color correction section for performing color correction on the input values, by moving the input values based on the calculated movement amounts, wherein the movement amount calculating section calculates the movement amounts such that the movement amounts become smaller as the distance between the input values and the center of the region to be corrected becomes larger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An image processing method for performing color correction on input values of input signals in a predetermined region to be corrected in a color coordinate system, comprising the steps of:
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(a) calculating movement amounts indicating how much the input values should be moved, in accordance with a distance between the input values and the center of the region to be corrected; and
(b) performing color correction on the input values, by moving the input values based on the calculated movement amounts, wherein in the step (a), the movement amounts are calculated, such that the movement amounts become smaller as the distance between the input values and the center of the region to be corrected becomes larger. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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Specification