| 摘要 |
Provided is an image processing device capable of extracting an area of minimal pixel change from an image, at low cost. The image processing device is provided with a seed region extraction section (10), a region expansion section (20), and a correction section (30). The seed region extraction section (10) extracts, as a seed region, a region that meets range-specifying conditions which are predetermined conditions relating to input image data (ID) luminance (Y), and saturation (r) and hue (theta) obtained from first color difference data (Cb) and second color difference data (Cr). Selecting a pixel of the seed region as the origin, the region expansion section (20) assesses whether the surrounding pixels meet gradient-specifying conditions which are conditions relating to luminance gradient (Y'), saturation gradient (r'), and hue gradient (theta'), and if the conditions are met, the pixel so assessed is included in a pre-correction target region. The correction section (30) performs a hole filling process on the pre-correction target region to acquire a post-correction target region. |
