WPF wants to display transparent WebP images correctly

You can now view WebP in Windows 10, but when you try to view transparent WebP in WPF, the transparent part becomes corrupted.

Is there a way to display it correctly?

<Image Source="1_webp_a.webp"/>

We have tested the images using the Lossless and Alpha Gallery in WebP.

Development Environment - Windows 10 Pro 64bit (1809)
- VisualStudio 2017
- .NET Framework 4.7.2

.net wpf

2022-09-30 21:38

1 Answers

At the time of the question, the WebP library was probably 1.0.2 version, and when I displayed the image file without changing the vertical and horizontal sizes, the transparent part of the question was broken.
Even at this point, when I changed the vertical and horizontal sizes of the image file, it was displayed successfully.

As @nee confirmed, it was probably a bug.

The current WebP library is 1.1.0 and probably has been modified, so try it.

Entire WebP Archive
Index of downloads.webmproject.org/releases/webp
1.0.2 Version Series

libwebp-1.0.2-windows-x64-no-wic.zip 2019-01-19T07:59:14Z 4.4 MiB
libwebp-1.0.2-windows-x64-no-wic.zip.asc 2019-01-19T07:59:13Z833B
libwebp-1.0.2-windows-x64.zip 2019-01-19T07:59:14Z 3.55 MiB
libwebp-1.0.2-windows-x64.zip.asc 2019-01-19T07:59:13Z833B
libwebp-1.0.2-windows-x86-no-wic.zip 2019-01-19T07:59:14Z 3.77 MiB
libwebp-1.0.2-windows-x86-no-wic.zip.asc 2019-01-19T07:59:13Z833B
libwebp-1.0.2-windows-x86.zip 2019-01-19T07:59:14Z 3.01 MiB
libwebp-1.0.2-windows-x86.zip.asc 2019-01-19T07:59:13Z833B

1.1.0 Series

libwebp-1.1.0-windows-x64-no-wic.zip 2020-01-06T23:53:55Z4.77MiB
libwebp-1.1.0-windows-x64-no-wic.zip.asc 2020-01-06T23:53:53Z833B
libwebp-1.1.0-windows-x64.zip 2020-01-06T23:53:55Z 3.6MiB
libwebp-1.1.0-windows-x64.zip.asc 2020-01-06T23:53:53Z833B

Current version of the sample program used for verification
ImageUltimate30-day trial

2022-09-30 21:38

If you have any answers or tips

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