Patent ID: 8982244
Filing Date: 2015-03-17
Classification: H04N

Abstract:
1. An image capturing apparatus comprising: an image capturing unit configured to sequentially output images obtained by capturing an object; a decision unit configured to decide a luminance correction target amount based on a luminance distribution of the image output by said image capturing unit; a specification unit configured to specify a low-frequency region of a target image output by said image capturing unit; a correction unit configured to perform luminance correction with the target amount decided in advance by said decision unit for a pixel, among pixels included in the target image, which is included in the low-frequency region specified by said specification unit and has a luminance value not larger than a predetermined value; an obtaining unit configured to obtain an effective correction amount based on a luminance distribution of the target image before the correction and a luminance distribution of the target image after the correction, which has been corrected by said correction unit with the target amount decided in advance; and an output unit configured to output the target image after the correction, wherein said decision unit decides a luminance correction target amount for a next correction target image based on the luminance distribution of the target image and a ratio of the effective correction amount to the target amount decided in advance.