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A PNG with transparency gets incorrectly rendered #14

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rec opened this issue Apr 17, 2019 · 1 comment
Open

A PNG with transparency gets incorrectly rendered #14

rec opened this issue Apr 17, 2019 · 1 comment
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rec commented Apr 17, 2019

Most PNG files don't exhibit this, but I have one lying around that has a lot of transparency and does.

/code/env/hardback/lib/python3.6/site-packages/PIL/Image.py:966: UserWarning: Palette images with Transparency expressed in bytes should be converted to RGBA images

'to RGBA images'

The result is wrong colors (green background in a black-only image) and pixelated edges - see attached PNG.

bad_image

Workaround - don't use one-color PNG images with transparency.
@rec rec added the bug Something isn't working label Apr 17, 2019
@rec rec self-assigned this Apr 17, 2019
rec added a commit that referenced this issue Apr 17, 2019
@rec
Check in an image to demonstrate #14
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rec commented Apr 17, 2019

This was the same image as in #3.

rec added a commit that referenced this issue Apr 18, 2019
@rec
Check in an image to demonstrate #14
3b515bd
@rec rec added this to the release milestone Apr 22, 2019
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