Image Luminance

ControlNet Preprocessors/Recolor

ImageLuminanceDetector

Example

JSON Example

{
  "class_type": "ImageLuminanceDetector",
  "inputs": {
    "image": [
      "node_id",
      0
    ]
  }
}

This example shows required inputs only. Connection values like ["node_id", 0] should reference actual node IDs from your workflow.

Inputs

Name	Type	Status	Constraints	Default
image	IMAGE	required	-	-
gamma_correction	FLOAT	optional	min: 0.1, max: 2, step: 0.01	1
resolution	INT	optional	min: 64, max: 16384, step: 64	512

Outputs

Index	Name	Type	Is List	Connection Reference
0	IMAGE	IMAGE	No	["{node_id}", 0]

How to connect to these outputs

To connect another node's input to an output from this node, use the connection reference format:

["node_id", output_index]

Where node_id is the ID of this ImageLuminanceDetector node in your workflow, and output_index is the index from the table above.

Example

If this node has ID "5" in your workflow:

• IMAGE (IMAGE): ["5", 0]

Package: comfyui-controlnet-aux