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ARW at a glance
ARW
As Sony expanded from consumer electronics into serious camera bodies and sensors, ARW became part of the broader shift that put Sony raw support on the critical path for many photo applications.
DCM at a glance
DCM
DICOM grew out of the need to exchange imaging data across scanners, archives, and clinical systems without throwing away the surrounding context that makes a medical image usable in practice.
Format comparison
| Feature | ARW | DCM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | depends |
| File size characteristics | large | medium |
| Compatibility | limited | broad |
| Editability | high | moderate |
| Created year | 2006 | 1993 |
| Inventor | Sony | ACR-NEMA / DICOM Standards Committee |
| Status | proprietary | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | moderate |
| Metadata handling | rich | moderate |
| Delivery profile | limited | strong |
| Workflow fit | source | delivery |
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ARW
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
When to use DCM
- capture ingest
- editing
- web or print delivery
- Carries workflow-critical metadata alongside image content.
FAQs
Why convert ARW to DCM?
Choose DCM as target when the output must remain part of a medical-imaging workflow, preserving both image data and associated study metadata.
What changes when converting ARW to DCM?
Convert to DCM when the output must remain part of a medical-imaging workflow, preserving both image data and associated study metadata. It is the correct target for diagnostic, archival, and interoperable clinical imaging systems.
What should I review after converting ARW to DCM?
After conversion, review these destination checks: Open converted output in clinical viewers and verify behavior on real samples; Compare output against the expected depends quality profile; Not a general-purpose image target for ordinary publishing.
How can I keep quality stable in ARW to DCM conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Validation has to include metadata and receiving-system behavior, not just visual output; Not a general-purpose image target for ordinary publishing; Validate destination compatibility before large-batch conversion.