| 摘要 |
PURPOSE:To form a high definition copy image by preventing dense information from being emphasized too much when an original for repeating copies and an original having much ratio of dense information part are copied. CONSTITUTION:After an A/D conversion 30 is performed for the analog image signals converted into RGB electric signals by an image reader control part 1022 and a black correction/white correction 31 is performed for the signals, each signal is inputted in an ND signal generation part 32 and a color detection part 33. Then, a luminance signal Dout is outputted from the generation part 32, color signals Cout of red, green, blue, etc., are outputted from the color detection part 33, and a density correction 36 is performed for the signals. Namely, in this correction part 36, the corrections of density conversions and the gradation of printers are performed by using a look-up table 36. Thus, dense information is prevented from being emphasized too much when the original for repeating copies and the original having much ratio of dense information part are copied and the originals are outputted to a printer control part 1024. |
