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J2K in het kort
J2K
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.
CR2 in het kort
CR2
CR2 became the dominant Canon raw family through the long DSLR era, so huge real-world photo archives still depend on stable CR2 decoding and migration paths.
Formaatvergelijking
| Kenmerk | J2K | CR2 |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 2004 |
| Inventor | Joint Photographic Experts Group | Canon |
| Status | active | proprietary |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Vector scaling | Ondersteund | 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 J2K
- Your source file is already in J2K.
- Preserve source expectations before exporting to CR2.
- J2K is commonly used in image workflows.
When to use CR2
- Your target workflow expects CR2.
- Improve delivery compatibility with CR2.
- CR2 is commonly used in image workflows.
Veelgestelde vragen
Why convert J2K to CR2?
Convert to CR2 when preserving Canon originals or maintaining a workflow that expects Canon raw files.
It is useful for archive retention, raw editing, and non-destructive photo finishing.
What changes when converting J2K to CR2?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to CR2 adds camera raw data.
What should I review after converting J2K to CR2?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.