HDR PhotoStudio

HDR PhotoStudio is a discontinued high dynamic range (HDR) graphics application developed by Unified Color for the Windows and macOS operating systems. In addition to being a HDR-merge application, HDR PhotoStudio offered a set of image editing operations that worked in its dynamic range (the website showed an example of processing an image with 1,000,000:1 contrast ratio), human color range (gamut), and in high precision (32-bit floating point). It also had a Color Integrity feature that enabled preserving an image's color tone during image editing operations — for example changing an image's contrast would not change its chromatic (color tone) data. This problem is usually referred to as "color shift".^[1][2][3][4]

HDR PhotoStudio

HDR PhotoStudio screenshot
Developer(s)	Unified Color
Final release	2.15.42 / March 2010; 14 years ago (2010-03)
Operating system	Microsoft Windows
Type	High dynamic range imaging
License	Proprietary
Website	www.unifiedcolor.com

HDR PhotoStudio implemented an advanced HDR image compression format called BEF, and a plug-in for opening and saving files in Adobe Photoshop was also included with the application.^[5] HDR PhotoStudio was discontinued in July 2010.^{[citation needed]}

BEF is an HDR image format developed by Unified Color. The BEF format can archive image data with any dynamic range, full human color range, and a quality setting directly tied to color data precision; the used techniques ties it with JND — just noticeable difference parameter.^[6]

Features

• Unified Color model: support for merging and editing HDR images with any dynamic range, human color range, and Color Integrity (to avoid "color shift" issue).
• Support for RAW camera formats.^{[citation needed]}
• Support for import HDR images from Radiance HDR and OpenEXR formats.^{[citation needed]}
• An advanced technique of HDR data rendering.^[7]
• Scripting support via image recipe.^{[citation needed]}
• Halo removal technique.^{[citation needed]}
• Powerful noise elimination.^{[citation needed]}
• 32-bit/channel floating point high precision representation of image data (96 bit/pixel).^{[citation needed]}
• Multi-core processors support.^{[citation needed]}

References

1. . Archived from the original on 2009-03-10.
2. Christian Bloch (Jun 1, 2009). "HDR PhotoStudio sets a new standard for HDR editing".
3. Sally Wiener Grotta and Daniel Grotta (Jan 13, 2010). "HDR PhotoStudio Creates Vivid, Detailed Images".
4. "Comparison of tone-mapping between HDR PhotoStudio and Photomatix".
5. "BEF file format" (PDF).
6. "BEF file format" (PDF).
7. . Archived from the original on 2009-03-18.