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BPG at a glance
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.
BAY at a glance
BAY
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | BPG | BAY |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2014 | 2002 |
| Inventor | Fabrice Bellard | Casio |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Supported |
| HDR support | Supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use BPG
- Your source file is already in BPG.
- Preserve source expectations before exporting to BAY.
- BPG is commonly used in image workflows.
When to use BAY
- Your target workflow expects BAY.
- Improve delivery compatibility with BAY.
- BAY is commonly used in image workflows.
FAQs
Why convert BPG to BAY?
Convert to BAY when preserving compatibility with an older camera archive or recovering original raw captures from that ecosystem.
In most modern photo workflows, BAY is a source to normalize into DNG, TIFF, or a contemporary editing format.
What changes when converting BPG to BAY?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to BAY removes animation support. Moving to BAY adds camera raw data. Moving to BAY removes HDR content.
What should I review after converting BPG to BAY?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.