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Can't properly load grayscale JPEG #57

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MyLegGuy opened this Issue Nov 18, 2017 · 0 comments

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MyLegGuy commented Nov 18, 2017

JPEG images that are grayscale display at a fraction of their correct width for some reason. Around 1/3 their correct width, I think. I don't know much about the JPEG format, but 1/3 of the correct width makes me think that one byte per pixel is being used instead of 3, which is possible because the only colors are shades of black.

Here's what it looks like when I display the grayscale JPEG:
https://i.imgur.com/0U9qBxg.jpg
Here's that same image displayed, but it's a regular JPEG:
https://i.imgur.com/wyxkMnQ.jpg
Code I used:
https://pastebin.com/mXqKzhPU
The actual image:
https://www.dropbox.com/s/coa91s1jw1qcwau/test.jpg?dl=0

@MyLegGuy MyLegGuy changed the title from Can't properly display JPEG with bit depth of 8 to Can't properly load grayscale JPEG Sep 10, 2018

@xerpi xerpi closed this in #63 Sep 18, 2018

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