error processing wavelet3ddemo from help menu

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

Answer 1

[Wayne King]

colormap('gray')

[Wayne King]

You should realize that there are a number of colormap(map) calls in that demo, not just one.

Answer 2

[Wayne King]

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

[FIR]

wayne i commented that colour map line ,please say the command how to use that gray colormap

[FIR]

thanks wayne