WebP library for C#

Question

It seems like there is no code samples for WebP in C#. Is there any? I don't need to display WebP images directly but saving & transferring as WebP would be nice.

Did you find anything for this? – Evgenyt Nov 07 '11 at 14:59 — Evgenyt, Nov 07 '11 at 14:59

score 7 · Answer 1 · edited Dec 12 '22 at 22:26

7

WebP-wrapper

Wrapper for libwebp in C#. The most complete wapper in pure managed C#. Exposes Simple Decoding API, Simple Encoding API, Advanced Encoding API (with compresion statistics), Get library version and WebPGetFeatures (info of any WebP file). In the future I´ll update for expose Advanced Decoding API. The wrapper is in safe managed code in one class. No need for external dll except libwebp_x86.dll and libwebp_x64.dll (included v6.1). The wrapper work in 32, 64 bit or ANY (auto swith to the apropiate library).

The code is full comented and include simple example for using the wrapper.

edited Dec 12 '22 at 22:26

Glenn Slayden

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answered Feb 03 '15 at 14:04

Jose Manuel Piñeiro

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I needed a way to convert .webp images to .jpg images and it works great. – Scott Wilson Jul 26 '18 at 08:21
It doesn't work, just throws exception during WebPGetFeatures WebPGetFeaturesInternal_x64, impossible to debug further because it's a dLL, moreover the error message simply gives the name of the DLL file! – pete Dec 28 '22 at 03:55
There is literally not a single example of anyone in the world trying to use this DLL in Unity C#. – pete Dec 28 '22 at 04:09

score 6 · Accepted Answer · edited May 23 '17 at 10:31

6

Take a look at http://webp.codeplex.com/. There is a library that allows you to easily encode into WebP format. Check out this question for more information:

Convert Bitmap to WebP Image?

The library allows you to save into WebP format like so:

using (Image image = Image.FromFile("image.jpg"))
{
   Bitmap bitmap = new Bitmap(image);
   WebPFormat.SaveToFile("image.webp", bitmap);
}

edited May 23 '17 at 10:31

Community

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answered Nov 05 '12 at 12:11

Deano

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is there something similar for java/android? – android developer Jun 04 '13 at 10:25
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This project looks abandoned... – jjxtra Oct 03 '15 at 14:29
Throwing format error.http://stackoverflow.com/questions/43677838/c-sharp-webp-image-throwing-error-an-attempt-was-made-to-load-a-program-with-an – Andi AR Apr 28 '17 at 10:26
Google Chrome doesn't shows the webpage because of security warning on the webp.codeplex.com link. – Jan Bludau Nov 30 '19 at 08:50
I think that it is moved to: https://github.com/imazen/libwebp-net – riofly Dec 30 '19 at 17:24

score 5 · Answer 3 · answered Aug 04 '18 at 05:37

there is a project in github

Wrapper for libwebp in C#. The most complete wrapper in pure managed C#.

Exposes Simple Decoding API and Encoding API, Advanced Decoding and Encoding API (with stadistis of compresion), Get version library and WebPGetFeatures (info of any WebP file). Exposed get PSNR, SSIM or LSIM distortion metrics.

The wrapper is in safe managed code in one class. No need external dll except libwebp_x86.dll and libwebp_x64.dll (included v6.1). The wrapper work in 32, 64 bit or ANY (auto swith to the apropiate library).

The code is full comented and include simple example for using the wrapper.

see project page: https://github.com/JosePineiro/WebP-wrapper

score 1 · Answer 4 · answered Nov 07 '11 at 15:00

1

There is https://github.com/mc-kay/libwebp-sharp wrapper project. But it doesn't seem to be implemented.

answered Nov 07 '11 at 15:00

Evgenyt

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https://github.com/imazen/libwebp-net – Jan Bludau Nov 30 '19 at 08:56

WebP library for C#

4 Answers4

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