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JPM at a glance
JPM
JPEG 2000 arrived as a major standards effort to improve on classic JPEG, but its practical adoption concentrated in specialist domains rather than in the universal browser-and-camera role held by JPEG.
HDR at a glance
HDR
HDR raster formats became important in rendering and lighting workflows before consumer-facing HDR delivery stories matured in mainstream media formats.
Format comparison
| Feature | JPM | HDR |
|---|---|---|
| File type | Image | Image |
| Extensions |
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| MIME type |
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| Created year | 2000 | 1989 |
| Inventor | Joint Photographic Experts Group | Greg Ward |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
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| Layer support | Supported | Not supported |
| Vector scaling | Supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use JPM
- Your source file is already in JPM.
- Preserve source expectations before exporting to HDR.
- JPM is commonly used in image workflows.
When to use HDR
- Your target workflow expects HDR.
- Improve delivery compatibility with HDR.
- HDR is commonly used in image workflows.
FAQs
Why convert JPM to HDR?
Convert to HDR when you need scene-referred high-dynamic-range image data for rendering, environment lighting, or technical HDR processing.
It is useful for lighting assets and specialized imaging pipelines.
What changes when converting JPM to HDR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to HDR removes layer support. Moving to HDR removes vector scaling. Moving to HDR adds HDR content.
What should I review after converting JPM to HDR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.