Taming the Image File Size Issue

High Dynamic Range Images typically require extremely large files which eat up massive amounts of storage and computing power. BrightSide has tackled this issue with a new approach to file compression specifically targeted to preserve HDR image detail. BrightSide’s JPEG-HDR and MPEG-HDR file formats provide file compression of up to 80:1.

View the white paper on Subband Encoding

Overview of MPEG-HDR

Overview of JPEG HDR

If you are interested in a commercial license for the professional edition of this technology please contact:


To view some sample HDR images, please see our HDR Gallery.



BrightSide introduces MPEG-HDR™, the first in a family of HDR codecs designed to preserve the fidelity of High Dynamic Range content and to enable broad distribution of HDR Video.

The Problem: Typically, HDR image content must be reduced to 8 bits per color channel through a "Tone Mapping" process prior to compression. The Tone Mapping technique enables high compression rates, but it destroys the original high dynamic range content and results in a loss of overall image quality. Images reduced to 8 bit format are also problematic for video editing as high bit depth is required to maintain image quality through various processing operations.

The Solution: BrightSide, in collaboration with the Max Planck Institute, has created a compression technique that preserves HDR content. BrightSide’s HDR codecs utilize conventional 8 bit compression to create a standard 8 bit Tone Mapped stream while concurrently capturing additional information in a separate stream to enable restoration of HDR content.

Performance Example:

Uncompressed (DPX) 11,800 kbDPX

8 Bit Compression (MPEG4) 130 kbMpeg
Uncompressed (DPX) 11,800 kbDPX

MPEG-HDR Compression 150 kbDPX

HDR Codec Features:

User Benefits Today:Content Creators and Video Editors will now be able to:

The Future:

The introduction of BrightSide’s HDR Codec will enable HDR imagery to be distributed for enjoyment on HDR displays which are currently being introduced as the next major advance in display technology.


HDR Image File Compression

BrightSide’s proprietary HDR image file compression overcomes the file size problem. Previously, typical HDR images would require many megabytes of storage but by applying BrightSide’ JPEGHDR encoding, the size can be reduced to kilobytes. Compression of up to 25:1 can be achieved while maintaining excellent image quality and the final JPEGHDR image file is often only about 10% larger than a typical low dynamic range JPEG image.

For more demanding applications where lossless compression is required, compression rates of 3:1 to 8:1 can be achieved. In addition JPEGHDR compression is fully forward and backward compatible, allowing users the choice of working in low or high dynamic range.

Available as JPEGHDR for still images and MPEGHDR for video, BrightSide’s image compression technology removes a major barrier to mainstream adoption of HDR image technology.

BrightSide’s Image Capture, Processing and File Compression technologies are available for license. For further information on this opportunity contact bd@brightsidetech.com