SwinIR (DIV2K) — Image Upscaler AI Model
SwinIR covers the widest range of scale factors here — 2×, 3×, 4× and an 8× no other upscaler offers. Middling on both quality and speed, so it earns its place on reach rather than on either. 10-30 seconds.
What it does
SwinIR Classical enlarges a photograph 2x, 3x, 4x or 8x, reconstructing texture and edges rather than duplicating pixels into a bigger grid.
The 8x is the reason to reach for it, since no other upscaler here goes that far. On quality and on speed it sits in the middle of the field, so it earns its place on range rather than on either one. Ten to thirty seconds.
When to use it
- A thumbnail or low-resolution download made usable again
- 8x, for when no other upscaler here reaches far enough
- Preparing an image for print, a poster or a large display
- Old scans and archive photographs brought back to sharpness
- Video frames and screen captures that have to hold up larger
Details
- CategoryImage Upscaler
- Year2022
- LicenseApache-2.0
Compliance & Provenance
- ProviderOpen-source · Specialized
- EU AI Act RiskMinimal Risk
- Art. 50 TransparencyNot applicable
Inputs & Outputs
- ImageInputimage
Low-resolution source image
- ImageOutputimage
Upscaled high-resolution image
Parameters
- scale_factorintegerdefault 2options: 2, 3, 4, 8
Upscale ratio (2/3/4/8)
Enlargement factor. 2 (default) and 4 are standard. 3 is unusual but sometimes useful for specific source/target sizes. 8 dramatically enlarges but amplifies low-frequency content — use only when starting from very low resolution.