SGI (image file format)
Writableimage
Silicon Graphics Image (SGI) or the RGB file format is the native raster graphics file format for Silicon Graphics workstations
Identify it
| Extensions | .sgi.bw.rgb.rgba |
|---|---|
| MIME types | image/x-sgi-bwimage/sgiimage/x-rgbimage/x-sgiimage/x-sgi-rgb |
| Signatures | 01da at byte 0 (File Formats Wiki) |
| PRONOM | x-fmt/140 |
| Wikidata | Q7514956 |
Not sure your file is this? Identify it from its first bytes, in your browser.
Open it
- DevILOpen source
- GIMPOpen source
- ImageMagickOpen source
- ImageMagick (WebAssembly)Open source
- ConverseenOpen source
- imageioOpen source
- OpenImageIOOpen source
Convert it
Convert a file in your browser The steps marked “in browser” run on your machine; nothing is uploaded.
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| BMP 5.0 | ImageMagick (WebAssembly) | Lossless | in browser Pixels kept; some metadata, colour profiles or layers may be dropped. |
| PNG | ImageMagick | Lossless | convert in.rgb out.pngPixels kept; some metadata, colour profiles or layers may be dropped. |
| PNG | ImageMagick (WebAssembly) | Lossless | in browser Pixels kept; some metadata, colour profiles or layers may be dropped. |
| Quite OK Image Format | ImageMagick (WebAssembly) | Lossless | in browser Pixels kept; some metadata, colour profiles or layers may be dropped. |
| TIFF | ImageMagick | Lossless | convert in.rgb out.tifPixels kept; some metadata, colour profiles or layers may be dropped. |
| TIFF | ImageMagick (WebAssembly) | Lossless | in browser Pixels kept; some metadata, colour profiles or layers may be dropped. |
| ImageMagick (WebAssembly) | Partial | in browser The image is embedded in a PDF page. | |
| AVIF | ImageMagick (WebAssembly) | Lossy | in browser Lossy compression. |
| GIF 89a | ImageMagick | Lossy | convert in.rgb out.gifReduced to 256 colours. |
| GIF 89a | ImageMagick (WebAssembly) | Lossy | in browser Reduced to 256 colours. |
| ICO | ImageMagick (WebAssembly) | Lossy | in browser Icons are limited to 256 × 256 pixels. |
| JFIF 1.02 | ImageMagick | Lossy | convert in.rgb out.jpgLossy compression. |
| JFIF 1.02 | ImageMagick (WebAssembly) | Lossy | in browser Lossy compression. |
| JPEG XL | ImageMagick (WebAssembly) | Lossy | in browser Lossy compression. |
| WebP | ImageMagick | Lossy | convert in.rgb out.webpLossy compression. |
| WebP | ImageMagick (WebAssembly) | Lossy | in browser Lossy compression. |
Sources
From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), WebAssembly engines (ImageMagick, FFmpeg, Pandoc, 7-Zip, GDAL, Assimp, resvg), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-26.