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Atom/rbarrand/export screenshot diff (#7300)

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* Small refactor on ImageComparison utils.

Signed-off-by: hershey5045 <43485729+hershey5045@users.noreply.github.com>

* Add aznumeric cast.

Signed-off-by: hershey5045 <43485729+hershey5045@users.noreply.github.com>

* Correction on aznumeric cast.

Signed-off-by: hershey5045 <43485729+hershey5045@users.noreply.github.com>

* Add unit test for new image comparison function.

Signed-off-by: hershey5045 <43485729+hershey5045@users.noreply.github.com>

* Use span instead of array_view

Signed-off-by: hershey5045 <43485729+hershey5045@users.noreply.github.com>
This commit is contained in:
hershey5045
2022-01-31 14:27:55 -08:00
committed by GitHub
parent b455b915a8
commit 96dcd1fc26
2 changed files with 2 additions and 2 deletions
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Gems/Atom/Utils/Code/Source/ImageComparison.cpp
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@@ -14,7 +14,7 @@ namespace AZ
{
namespace Utils
{
int16_t CalcMaxChannelDifference(AZStd::array_view<uint8_t> bufferA, AZStd::array_view<uint8_t> bufferB, size_t index)
int16_t CalcMaxChannelDifference(AZStd::span<const uint8_t> bufferA, AZStd::span<const uint8_t> bufferB, size_t index)
{
// We use the max error from a single channel instead of accumulating the error from each channel.
// This normalizes differences so that for example black vs red has the same weight as black vs yellow.