how to divide into blocks of 8x8 pixels?

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dian
dian 2013-10-10
回答： Spandan Tiwari 2013-10-11
I have project "A Robust Digital Watermarking with Mixed Transform Technique for Digital Image".
There are two attachtment, the sourecode I made, and the embedding and extraction watermark process.
I've done the DWT process, and have problem with dividing into blocks of 8x8 pixels. Can you help me?
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sixwwwwww
sixwwwwww 2013-10-10
Dear dian, attachments are missing. Try again attaching your code files

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回答（3 个）

Matt J
Matt J 2013-10-11
One way using MAT2TILES ( Available Here )
>> A=rand(24); mat2tiles(A,[8,8])
ans =
[8x8 double] [8x8 double] [8x8 double]
[8x8 double] [8x8 double] [8x8 double]
[8x8 double] [8x8 double] [8x8 double]
Image Analyst
Image Analyst 2013-10-11
Spandan Tiwari
Spandan Tiwari 2013-10-11
The function blockproc in the Image Processing Toolbox maybe a natural fit if you would like to do process the image in blocks.

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