IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM

Provided is an image processing device that performs image processing on a composite image obtained by merging a first image and a second image having different exposure conditions. This device includes a data acquiring unit and an image processing unit. The data acquiring unit acquires the composite image and region data indicating a target region of the composite image. The image processing unit performs different image processes between the target region and a region other than the target region based on the region data. Here, the first image and the second image include a region on which a moving subject is rendered. In the region on which the moving subject is rendered, the composite image is generated by using a pixel value of one of the first image and the second image. The region data represents one or a plurality of regions generated based on the region of the composite image, on which the moving subject is rendered, as the target region.