| 摘要 |
PROBLEM TO BE SOLVED: To provide a superior noise eliminating method for digital images that has high noise-eliminating capability at a flat part of an image, completely stores an edge in a processing window and the line with the width of one pixel, and is suitable for high-speed processing which utilizes software programs. SOLUTION: In this noise-eliminating method, absolute difference among a processing object pixel and 8 surrounding pixels adjacent to the processing object pixel is calculated, and all surrounding pixels whose absolute differences is more than a predetermined threshold are replaced with the values of the processing object pixel to calculate a mean value related to the 8 surrounding pixels, and the processing object pixel is replaced with this mean value. |
