A color conversion device for image data and a color conversion method for image data (color conversion apparatus for image data and color conversion method for image data)

摘要

And the output result of the color conversion circuit of the specific color at the subsequent stage is not influenced by the output result of the color conversion circuit of the entire image of the preceding stage. The first color conversion circuit (10) And the correction signal obtained by multiplying the entire image by the second color conversion circuit 20 by the first color-converted image data and the key signal 4 representing the region of the specific color is added , The second color conversion is performed only for the color region and the key signal 4 is generated from the image data supplied to the first color conversion circuit 10 by the key signal generation circuit 30, It is possible to prevent the output result of the second color conversion circuit 20 from being affected by the output result of the first color conversion circuit 10 of the entire image of the previous stage.