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CRW in het kort
CRW
Early Canon digital-camera workflows used raw formats like CRW before the later EOS raw families stabilized around CR2 and then CR3.
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.
Formaatvergelijking
| Kenmerk | CRW | JPM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 2000 |
| Inventor | Canon | Joint Photographic Experts Group |
| Status | proprietary | active |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Ondersteund |
| Vector scaling | Niet ondersteund | Ondersteund |
| Camera raw data | Ondersteund | Niet ondersteund |
| HDR support | Niet ondersteund | Niet ondersteund |
| Streaming ready | Niet ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use CRW
- Your source file is already in CRW.
- Preserve source expectations before exporting to JPM.
- CRW is commonly used in image workflows.
When to use JPM
- Your target workflow expects JPM.
- Improve delivery compatibility with JPM.
- JPM is commonly used in image workflows.
Veelgestelde vragen
Why convert CRW to JPM?
Convert to JPM when working with scanned pages or compound document images that benefit from JPEG 2000-style compression and structure.
It is a specialist target for document-imaging workflows.
What changes when converting CRW to JPM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to JPM adds layer support. Moving to JPM adds vector scaling. Moving to JPM removes camera raw data.
What should I review after converting CRW to JPM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.