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PGM Raw in het kort
PGM Raw
The raw PGM branch reflects the practical evolution of Netpbm-style tool formats: keep the tiny header and easy parsing, but move the pixel raster into a binary form that is much more usable for real data sizes.
BPG in het kort
BPG
BPG arrived in the mid-2010s when image engineers were looking for better post-JPEG compression before AVIF and JPEG XL had ecosystem momentum.
Formaatvergelijking
| Kenmerk | PGM Raw | BPG |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 2014 |
| Inventor | Jef Poskanzer | Fabrice Bellard |
| Status | active | active |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | 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 | Ondersteund |
| Streaming ready | Niet ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use PGM Raw
- Your source file is already in PGM Raw.
- Preserve source expectations before exporting to BPG.
- PGM Raw is commonly used in image workflows.
When to use BPG
- Your target workflow expects BPG.
- Improve delivery compatibility with BPG.
- BPG is commonly used in image workflows.
Veelgestelde vragen
Why convert PGM Raw to BPG?
High-efficiency image encoding for maximum compression at JPEG-class quality, image compression research, and specialized pipelines where HEVC infrastructure is available.
What changes when converting PGM Raw to BPG?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to BPG adds animation support. Moving to BPG adds HDR content.
What should I review after converting PGM Raw to BPG?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.