divide an image to blocks
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hi i have an 256*256 image and i want to divide it to 8*8 blocks without overlapping and then calculate DCT for each blocks. how to do it?please help me
1 个评论
Geoff Hayes
2014-10-31
Nadia - if you have the Image Processing Toolbox, you should check the example from here DCT with blockproc.
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Image Analyst
2014-11-1
0 个投票
There are code samples in the FAQ using two different methods, mat2cell() and regular indexing. That just gives you the subimages. You can call a function on them if you want to process each subimage. If you want to use blockproc(), see my attached demos.
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2014-11-1
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