Image processing apparatus, image processing method and program with direction-dependent smoothing based on determined edge directions

摘要

An image processing apparatus is configured as follows. Namely, an image processing apparatus is provided with an imaging device in which a plurality of types of imaging elements having different spectral sensitivities are aligned on a single plane and which obtains a color imaging signal, first edge direction judging unit which judges a direction along which an edge is produced in the color imaging signal based on pixel values of the respective imaging elements, a high-color difference region judging unit which judges a region where the pixel values have a high-color difference, second edge direction judging unit which further judges a direction of the edge, direction dependence smoothing unit which smoothes the pixel values of the respective imaging elements by interpolating them along the direction, and omnidirectional smoothing unit which smoothes the pixel values of the respective imaging elements in all directions based on pixel values of peripheral pixels.