基于DCT图像压缩方法研究 高逼格定稿版

imwrite(H,'C:\\Documents and

Settings\\Administrator\\dc094.jpg'); F2=dct2(I2);

H2=log(1+20*abs(F2));

subplot(2,2,2);imshow(H2);title('(b) 10个系数重构图的频谱'); imwrite(H2,'C:\\Documents and

Settings\\Administrator\\dc095.jpg'); K1=I-Block2;

subplot(2,2,3);imshow(K1);title('(c) 原始图-压缩后图像'); imwrite(K1,'C:\\Documents and

Settings\\Administrator\\dc096.jpg'); K2=I-I2;

subplot(2,2,4);imshow(K2);title('(d) 原始图-重构图); imwrite(K2,'C:\\Documents and

Settings\\Administrator\\dc097.jpg');

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