how to divide into blocks of 8x8 pixels?

2 vues (au cours des 30 derniers jours)
dian
dian le 10 Oct 2013
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?
  1 commentaire
sixwwwwww
sixwwwwww le 10 Oct 2013
Dear dian, attachments are missing. Try again attaching your code files

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Réponses (3)

Matt J
Matt J le 11 Oct 2013
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 le 11 Oct 2013

Spandan Tiwari
Spandan Tiwari le 11 Oct 2013
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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