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image/jpeg: encode grayscale images as grayscale JPEGs. #8201

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nigeltao opened this issue Jun 13, 2014 · 2 comments
Closed

image/jpeg: encode grayscale images as grayscale JPEGs. #8201

nigeltao opened this issue Jun 13, 2014 · 2 comments
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Go1.4

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@nigeltao
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The jpeg.Encode function always writes YCbCr JPEGs, even if the source image is
grayscale.
@wathiede
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Comment 1:

I sent https://golang.org/cl/105990046 as one potential solution for this
issue.  Not sure if you were planning to work on the issue.  If you are, I can abandon
my CL.
https://golang.org/cl/105990046 allows the test in
https://camlistore.org/r/1217 to exercise the PNM type 5 code path.

@nigeltao
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Comment 2:

This issue was closed by revision 57964db.

Status changed to Fixed.

@rsc rsc added this to the Go1.4 milestone Apr 14, 2015
@rsc rsc removed the release-go1.4 label Apr 14, 2015
@golang golang locked and limited conversation to collaborators Jun 25, 2016
wheatman pushed a commit to wheatman/go-akaros that referenced this issue Jun 25, 2018
@wathiede @wheatman
image/jpeg: encode *image.Gray as grayscale JPEGs.
183606f 
Fixes golang#8201.

LGTM=nigeltao
R=nigeltao
CC=golang-codereviews
https://golang.org/cl/105990046
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