Image processing apparatus and image processing program

An image processing apparatus, comprising:

• N determination units that are provided so as to correspond to any of image processing carried out for N times and determine whether an image serving as a target of corresponding image processing is a chromatic image or an achromatic image, where N is an integer which is equal to or larger than two;
• a determination control unit that determines whether an image serving as a target of each of the image processing from (M+1)-th image processing onward is a chromatic image or an achromatic image based on at least one result between a result of the determination on an image serving as a target of M-th image processing and a result of the determination on the image serving as the target of the (M+1)-th image processing, where M is an integer which is equal to or larger than one;
• and
• at least one image processing unit that carries out the image processing on the image serving as the target of each of the image processing from the (M+1)-th image processing onward based on a result of the determination control unit.

A computer program product comprising a non-transitory computer-usable medium encoded with a computer executable instructions for image processing in an image processing apparatus that includes a first image processing unit, a first determination unit, a second image processing unit, and a determination control unit, wherein the computer executable instructions causes a computer to perform;

• carrying out first image processing on image data depicting a first image by the first image processing unit;
• determining whether the first image is a chromatic image or an achromatic image by the first determination unit;
• determining whether a second image is a chromatic image or an achromatic image based on at least one of two results:
• a result of a determination on whether a second image serving as a target of second image processing performed after the first image processing is a chromatic image or an achromatic image, and a result of the first determination unit, to be determined by the determination control unit;
• and
• carrying out the second image processing on the second image based on a result of the determination control unit by the second image processing unit.