CONVERT
DPX → ICO
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Fast, secure DPX to ICO conversion. No registration required.
Situation. DPX is a raster image format with its own balance of compression, colour depth, and software support. Solution: a ICO, produced below. A DPX → ICO operation is one of the simplest image jobs there is: same pixel grid, different wrapper. What genuinely changes is how lossy the codec is, whether alpha survives, and how large the final file ends up. KaijuConverter picks safe defaults for each of those and lets you override them under Advanced. A quick refresher — DPX is a raster image format with its own balance of compression, colour depth, and software support. By contrast, ICO is the Windows icon container with multiple resolutions packed into one file.
Digital Moving-Picture
Source formatDPX (Digital Picture Exchange) is a SMPTE standard file format for digital intermediate and visual effects work. It stores per-frame image data with rich metadata for color management and is widely used in film post-production pipelines.
ICO Icon
Target formatICO is the icon file format used for favicons and Windows application icons. A single ICO file can contain multiple image sizes and color depths for different display contexts.
Why convert DPX to ICO
The real reason to move from DPX to ICO is almost never picture quality — both raster formats store essentially the same pixels. It is about the tools downstream: which editors open the file natively, which CMSes upload it without transcoding, which social platforms accept it. Picking ICO solves those edge cases at the cost of a short conversion step.
HOW TO CONVERT
DPX → ICO
Provide the DPX
Click or drag to upload. We accept a single DPX file per job, with an optional queue of additional images for batch mode.
Encode to ICO
The conversion decodes the DPX, resolves the colour space to sRGB and writes the ICO container around the pixel data.
Save the ICO
The download is streamed back over HTTPS. If you uploaded multiple files, a ZIP with all ICO outputs is produced instead.
Common Use Cases
Share across platforms
Send ICO files to anyone without worrying about whether they have the right software for DPX.
Embed in documents
Drop ICO output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
ICO often produces smaller files than DPX for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
DPX vs ICO — Strengths and limitations
What each format does best, and where it falls short.
DPX Strengths
- Industry-standard archival format for film.
- Logarithmic color encoding preserves film look.
- Lossless — no generation degradation.
- SMPTE standardized (SMPTE 268M).
- Every VFX and color-grading app reads and writes DPX.
Limitations
- No compression — file sizes are enormous.
- Not a display format — requires color-managed pipelines.
- Gradually superseded by OpenEXR in modern VFX.
ICO Strengths
- Multi-resolution: one file, many sizes, OS picks the right one.
- Universal favicon support in every browser since IE5.
- Supports transparency (1-bit since 1985, full alpha since XP).
- Tiny file size — an entire favicon pack typically fits in under 15 KB.
- No licensing or patent concerns — fully in the public domain spec-wise.
Limitations
- Cannot compress continuous-tone images efficiently — use PNG or WebP for photos.
- Format is essentially frozen in 1999 — no HDR, no wide gamut, no modern features.
- Maximum image dimension is 256×256 px (inside an ICO container).
DPX vs ICO — Technical specifications
Side-by-side comparison of the technical details.
DPX
- MIME type
- image/x-dpx
- Extension
- .dpx
- Standard
- SMPTE 268M
- Bit depths
- 8, 10, 12, 16 bits per channel
- Color encoding
- Logarithmic (Cineon-style) by convention
ICO
- MIME type
- image/vnd.microsoft.icon
- Max resolutions per file
- 65 535 images
- Max single image size
- 256×256 px
- Color depths
- 1, 4, 8, 24, 32 bits per pixel
- Compression
- Uncompressed bitmap or embedded PNG (Vista+)
| Specification | DPX | ICO |
|---|---|---|
| MIME type | image/x-dpx | image/vnd.microsoft.icon |
| Extension | .dpx | — |
| Standard | SMPTE 268M | — |
| Bit depths | 8, 10, 12, 16 bits per channel | — |
| Color encoding | Logarithmic (Cineon-style) by convention | — |
| Max resolutions per file | — | 65 535 images |
| Max single image size | — | 256×256 px |
| Color depths | — | 1, 4, 8, 24, 32 bits per pixel |
| Compression | — | Uncompressed bitmap or embedded PNG (Vista+) |
DPX vs ICO — Typical file sizes
Approximate file sizes for common scenarios.
DPX
- 2K DPX frame (2048×1556, 10-bit) ~12 MB
- 4K DPX frame (4096×3112, 10-bit) ~50 MB
- 90-min feature at 4K DPX sequence ~6 TB
ICO
- Classic favicon (16×16 only) < 2 KB
- Multi-size favicon pack (16/32/48/256) 5-15 KB
- Full Windows app icon set 20-100 KB
Quality & Compatibility
DPX-to-ICO conversion does not change the visible content. Quality is capped by the DPX decode; re-encoding a lossy source at high quality cannot recover detail that was already discarded. For archival masters, keep the original DPX alongside the ICO copy.
Tips for Best Results
- Large DPX files may look identical to small ICO files for photographic content; pick quality based on end use, not headline megapixels.
- For print, export ICO at 300 DPI minimum and check that the colour profile embedded matches the print shop specification.
- Batch-convert related DPX images in one pass so they share identical encoder settings and look consistent side-by-side.
Frequently Asked Questions
It depends on the codecs involved. If both DPX and ICO are lossy, the pixels are re-encoded and a small amount of detail is discarded — invisible at default quality settings on photographs. If ICO is lossless (PNG, TIFF, BMP) the output keeps every pixel of the decoded DPX exactly, but cannot recover detail that DPX had already compressed away.
Often yes, especially when ICO is lossless. DPX tuned for efficient web delivery will usually produce smaller files than ICO's default settings. If file size matters, drop the quality in Advanced or pick a more compressed target format instead.
KaijuConverter uploads over HTTPS, processes the image in an isolated container and deletes both the source and the output within two hours. No account is required, file contents are never logged, and we do not use uploads to train any model. For confidential material, the paid plan includes a data-processing agreement.
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Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.