Patent ID: 6424753
Filing Date: 2002-07-23
Classification: G06T,H04N

Abstract:
A pixel interpolation method for interpolating a set of red, green, and blue color values for a single target pixel located at a center of a three rowÃ—three column image by calculating red, green and blue color values of said target pixel from color data of only four pixels around said target pixel and adjacent thereto for outputting interpolated color values for said target pixel, comprising:a reading step of reading out red, blue, and green image data of sequential first to third rows from among image data of N rowsÃ—M columns written in a memory, per each column, wherein N and M are integers at least equal to three; and a color data determining step of determining the interpolated color values for said target pixel on the basis of only five pixel color data from a first read step of the column located immediately before the column containing the target pixel to obtain a first pixel color data, a second read step of the column wherein the target pixel is located to obtain, in a single read step, a pixel color data for the target pixel, and a second pixel color data and a third pixel color data from two pixels located adjacent the target pixel, and a third read step of the column located immediately after the column containing the target pixel to obtain a fourth pixel color data.