ComfyUI Node
Save HDR Image
Saves the input image natively as HDR AVIF using ffmpeg.
Save HDR Image
- images
- gainmap
◄filename_prefiximage/ComfyUI►
◄formatavif►
◄codec▾►
◄peak_nits400►
◄itm_knee0.00►
◄itm_exponent1.00►
Categoryxenodes/experimental
Inputs (7)
| Name | Type | Default | Description |
|---|---|---|---|
| images | IMAGE | The images to save. | |
| filename_prefix | STRING | image/ComfyUI | The prefix for the file to save. |
| format | COMBO | avif | The image format to save. |
| codec | COMBO | The codec to use for AVIF encoding. | |
| peak_nits | FLOAT | 400100–10000 | Peak brightness in nits. SDR white (100 nits) will be mapped to this target luminance in HDR. |
| itm_knee | FLOAT | 0.000–1 | Inverse Tone Mapping (Soft-Knee) threshold. 0.0 starts expansion from black. 0.8 preserves SDR midtones and applies expansion to highlights. |
| itm_exponent | FLOAT | 1.001–10 | Expansion curve exponent. 1.0 = Linear (punchy/bright), 2.0 = Quadratic (soft/natural), >2.0 = even softer transition. |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| gainmap | IMAGE | — |