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ICO at a glance
ICO
ICO grew with the Windows desktop experience, where applications needed icons that scaled across shell views, toolbars, shortcuts, and later higher-DPI environments.
DCR at a glance
DCR
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 | ICO | DCR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1985 | 2004 |
| Inventor | Microsoft | Kodak |
| Status | active | proprietary |
| 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 | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ICO
- Your source file is already in ICO.
- Preserve source expectations before exporting to DCR.
- ICO is commonly used in image workflows.
When to use DCR
- Your target workflow expects DCR.
- Improve delivery compatibility with DCR.
- DCR is commonly used in image workflows.
FAQs
Why convert ICO to DCR?
Convert to DCR when preserving compatibility with an older camera-specific raw workflow or recovering legacy photographic originals.
In current practice it is mainly an archival and migration target.
What changes when converting ICO to DCR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to DCR adds camera raw data.
What should I review after converting ICO to DCR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.