IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM

摘要

According to an aspect of the present invention, when the abnormal oblique incident light is not detected, the first color mixture correction based on the pixel data of the adjacent pixel to the correction target pixel is performed for the pixel data of the correction target pixel, and when the abnormal oblique incident light is detected, the second color mixture correction based on the pixel data of the peripheral pixel to the correction target pixel is performed. Therefore, this aspect can be applied, particularly, even to an imaging element having a large array matrix size, and it is possible to solve the level difference among same-color pixels that occurs due to the influence of the leakage of the abnormal oblique incident light (the ghost light and the like) to the adjacent pixel, and to suppress the image quality degradation due to the abnormal oblique incident light.

主权项

1. An image processing device comprising:
an abnormal oblique incident light detection device which detects presence or absence of abnormal oblique incident light from image data that is output by an imaging element, the imaging element including multiple pixels, each of the multiple pixels including a color filter and a photodiode and outputting pixel data corresponding to a received light amount; a first color mixture correction device which performs a first color mixture correction for the pixel data of a correction target pixel, based on the pixel data of at least one adjacent pixel to the correction target pixel; a second color mixture correction device which performs a second color mixture correction for the pixel data of the correction target pixel, based on the pixel data of at least one peripheral pixel to the correction target pixel; and a color mixture correction decision device which decides by which of the first color mixture correction device and the second color mixture correction device the correction of the image data is performed, depending on a detection result of the abnormal oblique incident light detection device, wherein the color mixture correction decision device decides that the correction of the pixel data of the correction target pixel is performed by the first color mixture correction device, when the abnormal oblique incident light detection device does not detect the abnormal oblique incident light, and decides that the correction of the pixel data of the correction target pixel is performed by the second color mixture correction device, when the abnormal oblique incident light detection device detects the abnormal oblique incident light, wherein where M is an integer of 3 or more and N is an integer of 3 or more, the multiple pixels of the imaging element have a basic array pattern of M pixels×N pixels, a plurality of the basic array patterns being arrayed in a first direction and in a second direction perpendicular to the first direction, and the peripheral pixel is a pixel that is contained in a range of M pixels×N pixels containing the correction target pixel and that includes the color filter with the same color as the correction target pixel.