Patent ID: 7733545
Filing Date: 2010-06-08
Classification: H04N

Abstract:
1. An image processing method for generating and processing image data to be sent to an image forming apparatus including a recording head for ejecting droplets of a recording liquid, the image forming apparatus forming an image on paper based on input data, the image processing method comprising: color space conversion processing upon converting input data to color space values for the image forming apparatus in accordance with a specified density, wherein a table of color space conversion processing is used as a standard and has different gradation characteristics in each of objects constituting image data to be output and table values so as not to cause reverse gradations, wherein the table values from the table of color space conversion processing are multiplied by a quadratic coefficient K so as to perform color space conversion processing, and wherein if an amount of ink attachment A of a maximum value in each hue is more than an optimal amount of ink attachment B relative to the specified density, the quadratic coefficient K is calculated by performing an arithmetical operation of K=B/A, and the quadratic coefficient K is not multiplied if A is less than or equal to B.