Introduction - If you have any usage issues, please Google them yourself
P0301: digital image display and its Fourier transform matrix data
P0302: two-dimensional discrete cosine transform in image compression
P0303: adopt the method of gray transform to enhance the image contrast
P0304: histogram equalization
P0305: simulated images affected by white gaussian noise and salt and pepper noise
P0306: adopting the two-dimensional median filtering function medfilt2 for the salt and pepper noise image filtering
P0307: using MATLAB functions in filter2 to average filtering the noise of the image
P0308: adaptive weiner filtering of the image
P0309: using five different gradient enhancement method of image sharpening
P0310: image high-pass filtering and mask processing
P0311: using Butterworth low-pass filter (Butterworth) for the noise of image smoothing
P0312: using Butterworth, Butterworth high-pass filter to sharpen the image