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I have verified that I am running the latest version of ImageSharp
I have verified if the problem exist in both DEBUG and RELEASE mode
I have searched open and closed issues to ensure it has not already been reported
Description
Issue originally identified by @jrdiver in #1547 Thanks for that!
The new vectorized subsampling algorithm introduced in #1517 by @tkp1n is creating artifacts in our jpeg output. Unfortunately our regression tests did not capture the issue.
v1.0.3-alpha.0.28
v1.0.3-alpha.0.29
Steps to Reproduce
Simply resaving the input image is enough ensuring the quality is low enough to trigger 4:2:0 subsampling.
I'm not sure quality matters here. This is the output EncodeBaseline_WorksWithDifferentSizes_Rgba32_TestPattern600x400_Ratio420-Q100.jpeg which should run with Quality=100 if everything is correct:
Prerequisites
DEBUG
andRELEASE
modeDescription
Issue originally identified by @jrdiver in #1547 Thanks for that!
The new vectorized subsampling algorithm introduced in #1517 by @tkp1n is creating artifacts in our jpeg output. Unfortunately our regression tests did not capture the issue.
v1.0.3-alpha.0.28
v1.0.3-alpha.0.29
Steps to Reproduce
Simply resaving the input image is enough ensuring the quality is low enough to trigger 4:2:0 subsampling.
System Configuration
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