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ICB at a glance
ICB
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.
BMP at a glance
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.
Format comparison
| Feature | ICB | BMP |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1991 | 1990 |
| Inventor | Truevision | Microsoft |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ICB
- Your source file is already in ICB.
- Preserve source expectations before exporting to BMP.
- ICB 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.
FAQs
Why convert ICB 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 ICB to BMP?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting ICB to BMP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.