Image processing apparatus with noise reduction capabilities and a method for removing noise from a captured image

摘要

An image processing apparatus to perform a denoising process of removing noise included in image data based on a predetermined parameter is provided. The image processing apparatus includes an input unit configured to input image data; a physical characteristic value calculating unit configured to calculate a brightness-dependent physical characteristic value based on brightness of the input image data; a color determining unit configured to determine a color of the input image data; and a parameter deciding unit configured to decide the parameter based on the physical characteristic value calculated by the physical characteristic value calculating unit and a visual characteristic value according to the color determined by the color determining unit.