IMAGE PROCESSING DEVICE

PROBLEM TO BE SOLVED: To solve the problems that a contour portion of a drawing object cannot be discriminated if two drawing objects are overlapped, making it difficult to discern a character if a character object overlaps on a figure object, in a case where, in a density conversion of a chromatic color, when a red drawing object and a dark green drawing object are converted into density signals for, for example, an RGB signal, it is converted into an approximated density signal value in some cases, where the density conversion of a chromatic color as an example of converting image data, the example that includes a conversion of a non-chromatic color signal value of the RGB signal into a black density signal and a conversion of a chromatic color signal of the RGB signal into a density signal of a user specified discretionary color other than black, in converting the image data of a read full-color document into image data for two-color printing in the two-color printing.SOLUTION: When input full-color image data is two-color printed, the two-color printing is performed by changing the allocation of colors (two colors) specified for each category of drawing objects in a case where information on a drawing object of the input image data indicates a chromatic color.