ArchAi3D_Color_Correction_Advanced

Generated images have a tell: the colors are often subtly wrong - a white wall that's really pale gray, skin with a green cast, saturation a hair off. ArchAi3D Color Correction Advanced is a single-node fix for that: it runs a professional chroma correction on an image and hands back a corrected_image, with two knobs to tune how aggressive the fix is.

Inputs:

• image - the IMAGE to correct.
• strength (0-1, default 0.97) - how much of the correction to apply. 0.0 is a no-op, 1.0 is full correction. The default is near-max on purpose; if the correction overshoots (skin tones going weird, colors looking flattened), pull it down to 0.6-0.8.
• saturation (0-2, default 1.0) - an independent saturation multiplier applied on top. 0 grayscales the image, 2 doubles saturation. Keep at 1 unless you want the grade changed, not just corrected.

Output: corrected_image, an IMAGE. Drop it after your VAE decode and before your save node, and it slots into any graph as a pass-through - it doesn't need to be wired into the sampler at all.

The catch worth knowing

It's a correction, not a creative tool. The strength default (0.97) says it clearly: the author tuned this to normalize color casts, not to give you a look. If you want moody, warm, or stylized, this isn't the node - it's the "make it neutral and correct" step, which is exactly what a photorealistic interior render needs before it gets passed to a client or fed into a photo-realistic pipeline. It lives in the same family as the pack's BT.709 correction node, but this one keeps the controls minimal.

Installation

Part of ComfyUI-ArchAi3d-Qwen - ComfyUI Manager ("ArchAi3d Qwen") or:

cd ComfyUI/custom_nodes/
git clone https://github.com/amir84ferdos/ComfyUI-ArchAi3d-Qwen.git
cd ComfyUI-ArchAi3d-Qwen
pip install -r requirements.txt

Restart, under ArchAi3d/Utils. Note the requirements file lists colour-science - that's the dependency this node's family uses, so a full requirements install is the reliable path. Free personal use, paid commercial license.

Where people get burned

Applying it to already-correct footage does nothing bad but also nothing good - it's aimed at the output of a generation or VAE decode, not at color-graded photos. And "correct" is a strong word: auto-correction can push a deliberately warm interior toward neutral, which is precisely wrong for a "cozy golden-hour" shot. When that happens, strength 0.97 is your culprit - dial it back or skip the node for stylized looks. It's a cleanup step for realism, not an artistic filter.