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Questions tagged [jpeg-xr]

Questions related to JPEG XR, a still image compression standard and file format for continuous tone photographic images, based on technology originally developed and patented by Microsoft under the name HD Photo (formerly Windows Media Photo).

JPEG XR(JPEG eXtended Range) is a still-image compression standard and file format for continuous tone photographic images, based on technology originally developed and patented by Microsoft under the name HD Photo (formerly Windows Media Photo). It supports both lossy and lossless compression, and is the preferred image format for Ecma-388 Open XML Paper Specification documents.

More information at

  1. http://en.wikipedia.org/wiki/JPEG_XR
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Is re-encoding JPEG images an idempotent operation?

I am aware that JPEG compression is lossy. I have 2 questions: Given an operation T: 1. Take a JPEG-80 image 2. Decode it to a byte buffer 3. Encode given byte buffer as JPEG-80 Is T an idempotent operation in terms of visual quality? Or will the…
Sau
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How to process JPEG-XR files in Pillow (or generally in Python) in linux?

JPEG XR is a Microsoft developed format. On Ubuntu 14.04, I installed sudo apt-get install libjxr-dev sudo apt-get install libjxr-tools and now I can at least convert the *.jxr files into other more friendly formats like bitmap or tif,…
fpghost
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Why Google recommends using JPEG 2000 and JPEG XR and after Google Chrome doesn't support them?

Google recommends "Serve Images in Next-Gen Formats" and specifically mentions WebP, JPEG 2000 and JPEG XR, but then it doesn't provide support for 2 of them (JPEG 2000 and JPEG XR) in its own browser. Can someone please explain me why is this?
Gago Design
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Imagick PHP extension does not work to output JPEG XR image

I have a problem with ImageMagick. I searched a lot, but failed to find the solution. My problem has to do with output to JPEG XR format. I'm trying to do this in PHP 7.0/7.1 on Windows 10 and Linux Debian 9 server. My code:
Andrei Krasutski
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How to convert .tiff/.bmp to JPEG-XR with Imagemagick's convert tool?

i'm using the convert tool from imagemagick to convert images to the jpeg-xr format. i'm using the latest version under debian linux (ImageMagick-6.8.6-8). The problem is convert -format jxr or convert -format wdp produce the same format as my…
znarf
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export images to JPEG-XR with java?

Curious to try out exporting BufferedImages to JPEG-XR, but cannot find an export tool to add to a java workflow. Preferably there is a a JAI plugin out there somewhere... I googled about to no avail. Hopefully someone here can point us in the…
jedierikb
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How to load an JPEG XR image file in Python

I have some images in the JPEG XR format (file endings ".wdp" & ".jxr") and want to load them in Python. I had to do quite some research since the format seems to be rather"exotic". I finally found some clues that ImageIo seems to have support for…
Asgarod
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Problems with Python Wand and paths to JXR imagery when attempting to convert JXR imagery to JPG format?

I need to be able to convert JPEG-XR images to JPG format, and have gotten this working through ImageMagick itself. However, I need to be able to do this from a python application, and have been looking at using Wand. Wand does not seem to properly…
RebeccaP
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System.Drawing.Bitmap to JPEG XR

How can I encode a System.Drawing.Bitmap (v4.0) to the JPEG XR stream?
Václav Dajbych
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How to compile jxrlib on windows

I am looking for a library for working with JPEG-XR images and imagemagick refers me to jxrlib provided by Microsoft. There are no pre-built binaries. The source code comes with a make file, but when I try to build it using GnuMake, I run into…
MxLDevs
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What causes IWICBitmapFrameEncode::SetPixelFormat to return a format different from the requested one?

I've been using WIC to encode multiple images to the JPEGXR format. Occassionally, my program logs an error for the last LogAssert in the following snippet of my Encode function. hr = m_pFactory->CreateEncoder(GUID_ContainerFormatWmp, NULL,…
Sau
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How do I use the WIC API to read/write custom EXIF data?

I have gone through the documentation at: http://msdn.microsoft.com/en-us/library/windows/desktop/ee719799(v=vs.85).aspx As context, I am trying to encode in the JPEG-XR format and I want to emulate GDI+'s SetPropertyItem, GetPropertyItem…
Sau
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Compressing a binary image using jxrlib

I want to compress a binary image using JPEG-XR. For that, I downloaded jxrlib and built it. According to the instructions for encoding an image: JXREncApp [options]... -i input.bmp/tif/hdr Input image file name …
Sahil Sharma
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browser support for next gen image formats

google page speed insights says to use next gen image file formats in our web pages to speed up but as we all know these formats such as JPEG 2000, JPEG XR are not supported by majority of the browsers but WebP format is supported by a few …
Keen Design
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JPEG XR to Bitmap in C#

I'm using C#, and need to process Jpeg-XR images. However, these images are presented in form of base64 strings, and need to be converted into Bitmap objects directly. I can write it into a file and convert it, but this significantly affects my…
am17
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