why i cannot display an image

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Sapam Jaya
Sapam Jaya 2014-2-21
回答： john 2019-5-24
I have done wavedec2 on an image and extracted the approximate coefficients using appcoef2.I want to display the approximate image but its showing total white.why is it so. how to get the image?
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Dishant Arora
Dishant Arora 2014-2-21
编辑：Dishant Arora 2014-2-21
show us your code, it would be easier to find where you went wrong.

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采纳的回答

Walter Roberson
Walter Roberson 2014-2-21
use imagesc() or use imshow() with [] as the second parameter.
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Walter Roberson
Walter Roberson 2014-2-21
imagesc() picks up the current colormap, whatever that happens to be.

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john
john 2019-5-24
please solve this issue , i have try hundred of times
command line error is
Attempt to execute SCRIPT image as a function:
C:\Users\ejaz\Desktop\working space\image.m
Error in images.internal.basicImageDisplay (line 24)
hh = image(cdata, ...
Error in imshow (line 293)
hh = images.internal.basicImageDisplay(fig_handle,ax_handle,...

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