l33chKing
f3344769d2
New ColorMatchingNode (Color Matching Ops): image + reference inputs, one output. Methods LAB/RGB/Histogram (LAB default) and a target selector (All/Lightness/Color) that keeps only the matched Oklab lightness or color. Statistics-only, so inputs may be any size. Live in-node preview. Filter Ops: add Laplacian Sharpen (4-/8-neighbor kernel) and Unsharp Masking (Gaussian amount/radius/threshold), with matching JS live previews, widget visibility, and tooltips. Layer Blending: rename to Layer Blending Ops, drop the unused preview_ref output, and make the live preview match the backend exactly (resize fg to bg size, default opacity 255, per-mode clamp parity) - fixes big mismatches e.g. Linear Dodge (Add) at high opacity. Rename Color Matching node display to Color Matching Ops. Raise color-match preview resolution to 1024 to tighten preview-vs-output stats. Previews: use widget.last_y to stop the preview box overlapping the last widget (all nodes, incl. Channel Ops); hide the preview box until a preview exists; auto-size the node to a sensible preview area on first preview; keep fresh Filter Ops compact instead of huge with empty space. README: add per-node preview GIFs (channel_ops/Layer_blend/filter_ops/ color_match) and document the new node/effects; drop the old preview.gif reference.
ComfyUI Channel Ops (live-preview)
Four custom nodes for per-channel image manipulation, layer blending, image filters, and color matching — all with in-node live preview and optional MASK input.
Channel Ops
Per-channel operations across RGB / HSV / Oklab. Destination only affects Overwrite ops. mask input restricts the effect to the masked region.
| Operations | Sources / Destinations |
|---|---|
| Invert · Set · Add · Subtract · Multiply · Divide | Red · Green · Blue |
| Clamp Min · Clamp Max · Truncate · Contrast | Red+Green · Red+Blue · Green+Blue |
| Overwrite · Overwrite from Image | Hue · Saturation · Value · RGB · HSV · Oklab |
Layer Blending Ops
Composites two images with a blend mode + opacity (0–255). Foreground bilinearly resized to background H×W; batches align to min(B); output clamped to [0, 1].
| Blend modes |
|---|
| Normal · Multiply · Screen · Overlay |
| Soft Light · Hard Light · Darken · Lighten |
| Color Dodge · Color Burn · Linear Dodge (Add) · Linear Burn |
| Vivid Light · Linear Light · Pin Light · Hard Mix |
| Difference · Exclusion · Add · Subtract · Divide |
Filter Ops
Adaptive widget UI — only the controls relevant to the current effect are shown. effect + blend_mode always visible. mask input restricts the effect to the masked region. Custom widgets (color wheels, histogram, vignette center) mirror the underlying numeric values both ways.
| Effect | Key params |
|---|---|
| Blur | blur_mode (Gaussian / Average / Edge Average), radius, source |
| Halftone | shape (12 patterns), size, angle + angle wheel, contrast, brightness, inverse — Bayer-dithered |
| Color Filter | hue, density, preserve_highlights + HSV color wheel |
| Sharpen | amount (negative = soften), radius, threshold |
| Laplacian Sharpen | amount, kernel (3×3 4-neighbor / 8-neighbor) — edge boost via the Laplacian operator |
| Unsharp Masking | amount (multiplier), radius (Gaussian), threshold — classic unsharp mask |
| Pixelate | size, mode (Pixelate / Mosaic adds grout lines) |
| Posterize | levels, mode (RGB / Luminance), dither_mode (None / Bayer / Random / Floyd-Steinberg / Atkinson), dither strength |
| Vignette | amount, size, feather, roundness + draggable center widget |
| Levels | channel, in/out black/white, gamma + histogram widget with B/γ/W handles |
| Color Balance | 3 color wheels (Shadows / Midtones / Highlights); hue = tint direction, distance = intensity |
Color Matching Ops
Recolors image so its color statistics match a reference image. Two image inputs, one image output. Inputs may be any size — matching is statistics-only, so no resizing is needed.
method |
What it does |
|---|---|
| LAB (default) | Mean/std (Reinhard) transfer in the perceptual Oklab space |
| RGB | Mean/std transfer applied directly per RGB channel |
| Histogram | Per-channel cumulative-distribution (CDF) matching |
target |
What it keeps (split in Oklab; rest comes from the original) |
|---|---|
| All (default) | Full color match |
| Lightness | Match the reference tonality, keep the original colors |
| Color | Match the reference grade, keep the original tonality |
License
MIT