error processing wavelet3ddemo from help menu

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FIR
FIR 2011-11-3
I have a set of slices of image say 15,i want to proess compression,i saw from wavelet3ddemo from help menu ,but it gave coloured output,my image id a 2d,not colourred, can u tell how to rectify it please

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Wayne King
Wayne King 2011-11-3
colormap('gray')
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Wayne King
Wayne King 2011-11-3
You should realize that there are a number of colormap(map) calls in that demo, not just one.

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Wayne King
Wayne King 2011-11-3
That's because they used a colormap. You don't have to use the colormap. You can use a gray scale colormap.
If you load the wmri dataset in your workspace, you'll see that the .mat file has a 89x3 color map
  2 个评论
FIR
FIR 2011-11-3
wayne i commented that colour map line ,please say the command how to use that gray colormap

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