1. An image processing apparatus, comprising: a local motion compensation processing unit configured to generate a local motion compensation image by detecting a local motion vector, which is a motion vector for each block forming an image, from a standard image and a reference image, and performing motion compensation on the reference image using the local motion vector; a global motion compensation processing unit configured to generate a global motion compensation image by calculating a global motion vector, which is a motion vector for an entire image between the standard image and the reference image, using the local motion vector, and performing motion compensation on the reference image using the global motion vector; and a blend processing unit configured to generate a blend motion compensation image by combining a pixel value of a pixel in the local motion compensation image and a pixel value of a pixel in the global motion compensation image based on a noise intensity for a luminance value of an image.