Image processing unit, image processing method, and image processing program

An image processing method comprising the steps of:

• creating respective color histograms of images obtained by an imaging sensor;
• calculating color correlation between a processing object image and a comparison object image by comparing color histograms of the two images, the processing object image being one of said images and to be subjected to a predetermined processing, the comparison object image being another one of said images, and obtained prior to the processing object image for comparison;
• and
• deciding a parameter according to the calculated correlation, the parameter being used for said predetermined processing.

An image processing program causing an image processing unit to execute the steps of:

• creating respective color histograms of images obtained by an imaging sensor;
• calculating color correlation between a processing object image and a comparison object image by comparing color histograms of the two images, the processing object image being one of said images and to be subjected to a predetermined processing, the comparison object image being another one of said images, and obtained prior to the processing object image;
• and
• deciding a parameter according to the calculated correlation, the parameter being used for said predetermined processing.