How to convert a one column integer data file into a mask for image

Posted by gavishna on Stack Overflow See other posts from Stack Overflow or by gavishna
Published on 2010-06-13T19:31:54Z Indexed on 2010/06/13 19:52 UTC
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  1. I have a data file which contains integers say in range 0-255 containing about 1000 integers which are random in nature.I want to use that as a mask or to multiply an image which is in RGb and another image which is in gray format. HOw do i go about this, how do i convert/represent this data file in matrix format of image dimension ?Kindly suggest.

  2. also is it possible to obtain a 3D histogram?

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