Hello,Apologies for reposting my question from yesterday ("save image as color-mapped 8-bit rather than true-color"). I am hoping this reposting clarifies what I am trying to accomplish.
The attachment is a simple script that creates a 2D array of unsigned, 8-bit integers and uses matplotlib to save it as a PNG file.
Unfortunately, the PNG file is much larger than expected -- apparently because it is True-Color; on my MS Windows machine, bit depth, for the file, is listed as 32 rather than the expected 8.
In the attached script, the DNs array represents a single-channel, gray-scale, luminosity image which is to be pseudo-colorized as discussed in the tutorial <http://matplotlib.sourceforge.net/users/image_tutorial.html>.
Can matplotlib be used to accomplish this? If so, could someone direct me to where this is discussed?
Thanks, -- jv
8-bit PNGs.py
Description: application/python
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