Patent ID: 9058145
Filing Date: 2015-06-16
Classification: G06F,H04N

Abstract:
1. An image processing apparatus for generating color line image data using a drafting application program including computer-aided design software, the image processing apparatus including a printer driver configured to set a background color in the color line image data to one of white and transparent and express a line-drawing color of a line-drawing object by achromatic brightness when performing black-and-white printing based on the color line image data, wherein the printer driver comprises: an origin setting unit configured to set a brightness of the background color to an origin on a brightness axis of a hue coordinate system having the brightness axis and a saturation axis, in a case where the background color in the color line image data is a color other than white, wherein if black is set as the background color other than white, a brightness of “0” is set as the origin on the brightness axis; and a first brightness setting unit configured to set a distance from the origin to a coordinate of the line-drawing color in the hue coordinate system as a brightness of the line-drawing object for the black-and-white printing, in order to take into consideration not only the brightness of the line-drawing color but also saturation of the line-drawing color to adjust the line-drawing color, wherein the brightness of the line-drawing object for the black-and-white printing includes a drawing-color adjustinq value.