Sample code for DFT and DCT Operation on RGB Image

2012 8 9
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更新时间：2016 4 1
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Hi,
I am new to matlab and image processing.
For better undestanding of DFT and DCT operation on a RBG image, please provide some sample codes.
Code for plotting the the frequency components of an image would be an added help for me.
Thanks in advance.

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Arangarajan
Arangarajan 2012-8-24
hi,
Directly we cant apply DCT in a color image.First we converted that into gray and perform the dct operations.otherwise separate RGB planes then apply DCT/IDCT for each plane. Finally just combine all the planes.You will get better result.
Manali Roy
Manali Roy 2016-4-1
can you please tell me how to combine?

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