Image processing device and image processing method

An image processing device comprising:

• a target pixel set determiner configured to determine a target pixel set, among a plurality of Phase Detection Auto Focus (PDAF) pixel sets, based on average values and variance values of pixel values output from a plurality of pixels including a plurality of normal pixels and a plurality of PDAF pixels;
• and
• a pixel value corrector configured to convert pixel values of the target pixel set into normal pixel values based on pixel values of the plurality of normal pixels and configured to correct the normal pixel values to pixel values corresponding to an arrangement pattern of the plurality of pixels based on pixel values of a plurality of adjacent pixels adjacent to the target pixel set,
• wherein the plurality of pixels corresponds to a kernel set based on each of the plurality of PDAF pixel sets, and
• wherein the average values and the variance values respectively correspond to colors of color filters included in the plurality of pixels.

An image processing method comprising:

• calculating average values and variance values respectively corresponding to colors of color filters included in a plurality of pixels corresponding to a kernel set based on each of a plurality of Phase Detection Auto Focus (PDAF) pixel sets;
• determining a target pixel set, among the plurality of PDAF pixel sets, corresponding to a flat surface as a region in which complexity of an image is lower than a reference value, based on the average values and the variance values;
• converting pixel values of the target pixel set into first pixel values corresponding to a predetermined color;
• and
• correcting the first pixel values to second pixel values corresponding to an arrangement pattern of the plurality of pixels based on pixel values of a plurality of adjacent pixels adjacent to the target pixel set.