Image signal processor

Abstract

An image signal processor for performing image conversion is disclosed. The image signal processor includes a kernel generator configured to generate a target kernel including a pair of adjacent target pixels; a texture determiner configured to determine whether the target kernel corresponds to a flat region or a dark region by analyzing a texture of the target kernel; a threshold setting circuit configured to determine a threshold based on a result of the determination of the texture determiner; a defective pixel determiner configured to determine, based on pixel data of reference pixels having a same attribute as the pair of target pixels, whether each of the target pixels is defective pixel; and a defective pixel corrector configured to correct one of the pair of target pixels when the target pixels are determined as defective pixels.

Dependencies are inferred from the claim text.