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PGM in het kort
PGM
PBM, PGM, PPM, PNM, and later PAM come from the tool-centric tradition of keeping image interchange formats easy to parse, script, and transform.
BMP in het kort
BMP
Bitmap and device-independent bitmap structures became part of the Windows graphics story early in the platform's life, which is why BMP still appears in older desktop workflows and low-friction image interchange tasks.
Formaatvergelijking
| Kenmerk | PGM | BMP |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 1990 |
| Inventor | Jef Poskanzer / Netpbm lineage | Microsoft |
| Status | active | active |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Vector scaling | Niet ondersteund | Niet 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 PGM
- Your source file is already in PGM.
- Preserve source expectations before exporting to BMP.
- PGM is commonly used in image workflows.
When to use BMP
- Your target workflow expects BMP.
- Improve delivery compatibility with BMP.
- BMP is commonly used in image workflows.
Veelgestelde vragen
Why convert PGM to BMP?
Convert to BMP when a Windows-oriented tool, legacy application, or device explicitly expects simple bitmap input.
It is useful for compatibility, debugging image pipelines, and straightforward raster exchange where file size is not the priority.
What changes when converting PGM to BMP?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting PGM to BMP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.