Image signal processor and image signal processing method

An image signal processor comprising:

• a directional component extractor configured to extract directional components of a target kernel by performing a first convolution operation between the target kernel and each of a plurality of first kernels, the target kernel including a target pixel;
• an interpolation kernel determiner configured to obtain convolution resultant values by performing a second convolution operation between each of a plurality of second kernels and the directional components, and determine an interpolation kernel based on the convolution resultant values;
• and
• a pixel interpolator configured to interpolate the target pixel using data included in the interpolation kernel.

An image signal processing method comprising:

• extracting first directional components of a first color kernel by performing a convolution operation between the first color kernel and each of a plurality of directional kernels, the first color kernel including a first target pixel;
• determining a first interpolation kernel based on the first directional components;
• and
• interpolating the first target pixel using data included in the first interpolation kernel.