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VDA in het kort
VDA
The Truevision line grew out of EPICenter-era PC graphics boards, and several board names ended up surviving as filename extensions even when the underlying raster structure stayed close to the wider TGA family.
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 | VDA | JPM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1987 | 2000 |
| Inventor | Truevision | Joint Photographic Experts Group |
| Status | active | 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 | Niet ondersteund | Niet ondersteund |
| HDR support | Niet ondersteund | Niet ondersteund |
| Streaming ready | Niet ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use VDA
- Your source file is already in VDA.
- Preserve source expectations before exporting to JPM.
- VDA 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 VDA 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 VDA 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.
What should I review after converting VDA to JPM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.