Color control simulator for a picture reproducing machine

Claim 1

A color control simulator for a picture reproducing machine comprising an input means which scans an original picture to obtain color separation picture signals, a memory storing a memory table indexed by the color separation picture signals to output first color-corrected color separation picture signals, each of which is replaceable by a second color-corrected color separation picture signal, a color control means which outputs the second color-corrected color separation picture signals to the memory when the first color-corrected color separation picture signals are replaced with a second color-corrected color separation signals, a display means which displays color corresponding to the color-corrected color separation picture signals fed from the memory, and a computer which controls the input means, the memory, the control means and the display means; the color control means being a color controller which comprises a triangular wave generator which generates a first triangular wave having linear slopes, a function generator which reforms from the first triangular wave to a second triangular wave having curved slopes, and analog digital converters for converting the first triangular wave and the second triangular wave into the digital picture signals to obtain the color separation picture signal and the second color-corrected color separation picture signal.