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what wcompress error means

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cev
cev 2013-12-7
编辑： cev 2013-12-8
I want to compress an image using
wcompress( 'c','bmp1.bmp','compimg1.wtc','stw');
But I get an error Subscripted assignment dimension mismatch. What this error means?
  1 个评论
Walter Roberson
Walter Roberson 2013-12-7
I suggest experimenting with
img - imread('bmp1.bmp');
wcompress('c', img, 'compimg1.wtc', 'stw')

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cev
cev 2013-12-8
编辑：cev 2013-12-8
x,y dimensions of image should be power of 2

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Bruno Pop-Stefanov
Bruno Pop-Stefanov 2013-12-7
There seems to be a bug in either wfandfcidx or wavedec2, which are internal functions called by wcompress. I am sorry I can't help you more, but until this bug is fixed you can try another compression method. EZW, SPIHT, and SPIHT 3D should work (I get the same error with WDR and ASWDR). Good luck!

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