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Title: imsave should preserve alpha channel by Westacular · Pull Request #1956 · matplotlib/matplotlib · GitHub

Open Graph Title: imsave should preserve alpha channel by Westacular · Pull Request #1956 · matplotlib/matplotlib

X Title: imsave should preserve alpha channel by Westacular · Pull Request #1956 · matplotlib/matplotlib

Description: While looking at test_image, I noticed the comment that imsave was flattening alpha channel data. I figured this was related to #1868 (it is, partially), and decided to fix it. I've updated the test to reflect that an imsave/imread round-trip should now preserve full RGBA data to within 1/255. Passing the test, however, requires that the patches from #1868 also be applied.

Open Graph Description: While looking at test_image, I noticed the comment that imsave was flattening alpha channel data. I figured this was related to #1868 (it is, partially), and decided to fix it. I've updated the...

X Description: While looking at test_image, I noticed the comment that imsave was flattening alpha channel data. I figured this was related to #1868 (it is, partially), and decided to fix it. I've updated...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/1956

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f16a1d3 Fixes imsave so it does not flatten alpha-channel data (and updated t… Westacular Apr 27, 2013 https://github.com/matplotlib/matplotlib/pull/1956/commits/f16a1d32bf37067460700e3aad27b19fe65c66f2
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