JPEG XR

File Format
Name	JPEG XR
Ontology	Electronic File Formats Graphics JPEG XR
Extension(s)	.jxr, .hdp, .wdp
MIME Type(s)	image/vnd.ms-photo
LoCFDD	fdd000243
PRONOM	fmt/590
Released	≤2009

JPEG XR is an image compression standard and file format. It supports both lossy and lossless compression. It was originally developed by Microsoft and called Windows Media Photo, then HD Photo.

The JPEG XR file format is very similar to TIFF, though it is not compatible with it. The compression scheme is vaguely similar to the one used by lossy JPEG.

Identification

Files start with bytes 49 49 BC 01.

Specifications

• ITU-T Rec. T.832

Software

• jxrlib: JxrDecApp, JxrEncApp
• Konvertor
• XnView
• Internet Explorer, starting with version 9

Sample files

• dexvert samples — image/jpegXR
• https://web.archive.org/web/20150620065524/https://www.shikino.co.jp/eng/products/ipcore/jpegxr.html
  The actual files were found elsewhere on the archived site:
  • https://web.archive.org/web/20220416103728/https://www.shikino.co.jp/solution/upfile/FLOWER.wdp.zip
  • https://web.archive.org/web/20220416104247/https://www.shikino.co.jp/solution/upfile/SAKURA.wdp.zip
  • https://web.archive.org/web/20220416104247/https://www.shikino.co.jp/solution/upfile/SMALLTOMATO.wdp.zip

Links

• Wikipedia article