Patent ID: 8515170

Claim:
A correction parameter creation apparatus, comprising: a histogram creator configured to create a histogram of luminance values based on an input image; and a parameter creator configured to create a parameter, the parameter indicative of an input-output characteristic configured for histogram equalization, wherein the histogram creator is configured to determine whether a target pixel in the input image is a local low-luminance pixel, the histogram creator further configured to omit counting a frequency of a luminance value of the target pixel if the target pixel is determined to be a local low-luminance pixel, the histogram creation module creator further configured to count a frequency of a maximum luminance value in an area of the input image if the target pixel is determined to be the local low-luminance pixel, the area comprising the target pixel in the input image, and wherein the histogram creator is configured to determine that the target pixel is the local low-luminance pixel if a difference between a maximum luminance value in a predetermined area comprising the target pixel in the input image and the luminance value of the target pixel is equal to or greater than a threshold, the histogram creator configured to determine that the target pixel is not the local low-luminance pixel if the difference is less than the threshold.