Patent Document ID: 9967482
Application ID: 15626912
Patent Status: 1

Claim One:
1. An image processing apparatus to execute noise reduction processing on image data, the image processing apparatus comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to function as: an acquisition unit configured to acquire a capturing parameter that influences a degree of generation of random noise in the image data, a processing unit configured to execute noise reduction processing on the image data, and an output unit configured to output noise-reduced output image data based on a result of the processing unit, wherein the processing unit determines a weight for a reference pixel based on a reference area including the reference pixel and a target area including a target pixel, and the processing unit calculates a value using reference pixels and weights corresponding to the reference pixels, wherein a size of the target area and a size of the reference area are the same, and wherein the output unit outputs, as a pixel value of the target pixel on the noise-reduced output image data, according to the capturing parameter, either a first value to be calculated in a case where a first pixel group is set as the target area or a second value to be calculated in a case where a second pixel group different from the first pixel group is set as the target area.