IMAGE PROCESSING DEVICE, IMAGE CAPTURE DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM

摘要

Source image data is subjected to a logarithmic process (gamma correction process) (S11), and the luminance distribution of source image data is acquired (S12). Then, it is determined whether or not the luminance distribution of source image data corresponds to “a high luminance scene (highlight scene) biased toward a high luminance side” based on a characteristic of a luminance value equal to or greater than a first threshold value in the luminance distribution of source image data (S13). According to the determination result (Y/N of S13), a restoration process based on a point spread function of an optical system is controlled (S14, S15). A restoration filter which is used in the restoration process has a filter coefficient corresponding to image data before the logarithmic process.

主权项

1. An image processing device which subjects source image data acquired by photographing an object image using an optical system to a restoration process using a restoration filter based on a point spread function of the optical system to acquire recovered image data, the image processing device comprising:
a gradation correction unit which subjects the source image data to gradation correction by a logarithmic process; a restoration processing unit which performs the restoration process by applying the restoration filter having a filter coefficient corresponding to image data before the logarithmic process to the source image data subjected to the gradation correction; a luminance distribution acquisition unit which acquires the luminance distribution of the source image data; and a restoration control unit which controls the restoration process by controlling the restoration processing unit based on a characteristic of a luminance value equal to or greater than a first threshold value in the luminance distribution.