Patent ID: 8837852

Claim:
An apparatus for correcting a defective pixel, the apparatus comprising: an inter-channel removal detection unit for determining an output value of an inter-channel, using a pixel value of a center pixel and an average pixel value of neighboring pixels which have a color which is the same as a color of the center pixel; a cross-channel removal detection unit for determining an output value of a cross-channel, using pixel values of adjacent pixels which have a color different from the color of the center pixel and are adjacent to the center pixel; a center processing unit for outputting the value of the center pixel; a median value calculation unit for calculating a final median value of the output value of the inter-channel, the output value of the cross-channel, and the value of the center pixel; and a defective pixel determination unit for determining whether there is a defective pixel based on a difference between the calculated final median value and the value of the center pixel.