| 摘要 |
<p>An image consisting of pixels expressed by a combination of densities of first color components (R, G, B) is converted into an image consisting of pixels expressed by a combination of densities of second color components (C, M, Y). In a first color correction method, the operation Q = αP + β is carried out for the density P of an original image using two predetermined correction coefficients α and β to find the density Q of the converted image. In a second color correction method, the density after the conversion is found in compliance with a k-th order masking equation using a k-th order masking coefficient. In this case, a color solid is defined for the first color components and is divided into n blocks. The k-th order masking coefficient is defined for each of the blocks. The k-th order masking equation is calculated using the k-th order masking coefficient defined for the block that includes a point representing a density before the conversion in the color solid.</p> |
