COLOR IMAGE PROCESSING

摘要

A color input image comprising a plurality of pixels, each pixels encoded in RGB color space, is processed to convert the RGB pixels to another color space domain for printing the color input image. The number of colors within a cell of the input image is reduced. Each cell comprises an N×M array of pixels and the number of colors is reduced to a maximum of b source colors, wherein b is a positive integer equal to or greater than 2. Each of the resulting colors of each cell is calibrated to generate a printable color. The cells are then processed to convert the pixels of each cell into another color space, for example, to determine ink vectors, in another color space, for each calibrated color.

主权项

1. A method of processing a color input image comprising a plurality of pixels, each pixel encoded in RGB color space, to convert the RGB pixels to another color space domain for printing the color input image, the method comprising:
(a) reducing the number of colors within a cell of an input image, each cell comprising an N×M array of pixels, to b source colors, if it is determined that the number of colors is greater than b, wherein b is a positive integer equal to or greater than 2; (b) calibrating each of the colors resulting from (a) of each cell to generate a printable color; and (c) processing the calibrated colors for converting the pixels of each cell into another color space domain for printing the input image.