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JPM in het kort
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.
CR3 in het kort
CR3
CR3 marks Canon's move into a newer raw-file generation as mirrorless and later-camera workflows evolved beyond the long CR2 era.
Formaatvergelijking
| Kenmerk | JPM | CR3 |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 2018 |
| Inventor | Joint Photographic Experts Group | Canon |
| Status | active | proprietary |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Ondersteund | Niet ondersteund |
| Vector scaling | Ondersteund | Niet ondersteund |
| Camera raw data | Niet ondersteund | Ondersteund |
| HDR support | Niet ondersteund | Niet ondersteund |
| Streaming ready | Niet ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use JPM
- Your source file is already in JPM.
- Preserve source expectations before exporting to CR3.
- JPM is commonly used in image workflows.
When to use CR3
- Your target workflow expects CR3.
- Improve delivery compatibility with CR3.
- CR3 is commonly used in image workflows.
Veelgestelde vragen
Why convert JPM to CR3?
Convert to CR3 when preserving current Canon camera originals or exchanging material with workflows built around Canon's recent raw ecosystem.
It is appropriate for archive masters and non-destructive photographic editing.
What changes when converting JPM to CR3?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to CR3 removes layer support. Moving to CR3 removes vector scaling. Moving to CR3 adds camera raw data.
What should I review after converting JPM to CR3?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.