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Jpeg XR support

Feb 10, 2015 at 10:48 AM
Hi,

I didn't found a way to use the JPEG XR format in MagickNet. This format is JXR in ImageMagick (http://www.imagemagick.org/script/formats.php#supported), but since it requires the jxrlib, I think there are chances this format is not yet supported in MagickNet.

Is there a workaround ? Is Jpeg XR support planned for MagickNet ? Do I miss something ?

I need a compressed format with alpha support, and since WebP is not supported by Firefox and IE without a JS lib, I explore alternatives. (JPEG XR seems to be the right way to go..)

Thanks in advance.
Feb 10, 2015 at 12:12 PM
ImageMagick does not link with Jpeg XR, it uses the binary to read/write an Jpeg XR image. You will have to create your own delegates.xml file. But you might want to reconsider using this if you want firefox support: http://caniuse.com/#feat=jpegxr.

Why don't you use PNG?
Feb 10, 2015 at 12:34 PM
My mistake.... I have been duped by a Jpeg XR demo which also uses javascript for image rendering.
Effectively, there's only IE supports for JXR, so it's worst than WebP.

I want to avoid PNG because of the poor compression quality and efficiency in lossy mode, and the big file size in lossless mode.
And I'm looking for a format supporting a good compression ratio and alpha channel at the same time.
I also tried BPG but i think it's too young and the compression times are really too slow... And there's no Magick support at all.

I think I'll stick with WebP and JS decoder.
Thanks.