各位大神,快帮帮我吧。是关于MATLAB的DCT图像压缩。答:title('原始图像');I=rgb2gray(IMG);J=dct2(I);figure subplot(1,2,1);imshow(J,[0,255]);title('dct变换图像');colormap(jet(256));J(abs(J)<10)=0;subplot(1,2,2);imshow(J,[0,255]);title('dct-10变换图像');colormap(jet(256));K=idct2(J);figure;imshow(K,[0,...