Image noise filtering method via median and mean value iterative filtering of minimal cross window
An image noise and iterative filtering technology, applied in the field of image processing, can solve problems such as limited denoising effect, poor denoising effect, and unsatisfactory processing speed
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[0061] The core of the invention is to propose an image noise filtering method of minimum cross-window median and mean value iterative filtering.
[0062] Below in conjunction with accompanying drawing, content of the present invention will be further described:
[0063] An image noise filtering method for minimum cross-window median and mean value iterative filtering, such as figure 1 shown, including the following steps:
[0064] Step 1: Input a noise-containing image I with a size of m×n and a gray level between 0 and L, where the minimum gray level is 0 and the maximum gray level is L, which is usually 255;
[0065] Step 2: Use the extreme value method to judge the noise, and generate the noise 0-1 binary mapping matrix N I ,which is:
[0066] , x=1,2,...,m, y=1,2,...,n;
[0067] Step 3: Calculate the noise density p: ;
[0068] Step 4: Compare the size of the noise density p and the parameter c, and use the minimum cross window iterative median filter or the mini...
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