Programming the DFT, DCT transform of two dimensional 8*8 image block Input a pair of RGB images, transform it into YCbCr color space, then divide the Y component into block DFT transform, save as gray image, and calculate the calculation time The 8*8 block DCT transform is implemented by programming, and then it is shown that when using some coefficients in 64 DCT coefficients, the quality is reconstructed. Meanwhile, the idea of DCT transformation is familiar with FFT, and the base function image of the 2 dimensional 8*8DCT transform is displayed.

Filename	Size	Update
代码
代码\DCT0.m	151	2017-12-05
代码\DCT1.m	891	2017-12-05
代码\DCT2.m	321	2017-12-05
代码\dft1.m	392	2017-12-05
代码\fft2.m	1711	2017-12-04
代码\lena88.bmp	246	2017-12-04
代码\RGB2YCbCr.m	479	2017-12-05
代码\RGB2YCbCr_2.m	316	2017-12-05
代码\showBase.m	555	2017-12-05

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