| 摘要 |
PROBLEM TO BE SOLVED: To print an image by converting primary-color RGB signals obtained by picking up an image by a color image pickup device into CMYK(cyan, magenta, yellow, and black) data for optimum printing. SOLUTION: The video signal (primary-color RGB) generated by an image pickup part 13 of an electronic still camera is converted by an A/D converter 14 into primary-color RGB data, which are supplied to an RGB correcting process part 16 for printing and a conversion look-up table 17 respectively. The conversion look-up table 17 contains as color correction data the differences between primary-color RGB data obtained by picking up an image of a test chart for printing and RGB data obtained from CMYK data, obtained by reading the test chart for printing by a scanner 11 for printing, through the inverse complementary color conversion of an inverse complementary color converting circuit 12. The RGB correcting process part 16 for printing makes color corrections into the best primary-color RGB data for printing according to the primary-color RGB data from the A/D converter 14 and the color correction data from the conversion look-up table 17 and sends them to a complementary color converting circuit 18, which converts the data into CMYK data for printing, so that the printer 20 prints the data. |
