ComfyUI-ImageAutotone

ComfyUI-ImageAutotone
★ 22

自动色阶对比增强色偏校正图像预处理
对输入图像的 RGB 通道独立裁剪直方图与色阶，自动提升对比并校正色偏，复现 Photoshop 的 Auto Tone 效果。
💡 自动修复生成或拍摄图像的对比与色偏。
🍴 2 Forks💻 Python🔄 2025-04-15
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workflow_image_autotone
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📄 README

ComfyUI-ImageAutotone

A node for ComfyUI that takes an input image and clips the color channels independently to increase contrast and alter color cast. This is a reinterpretation of PhotoShop’s “Auto Tone” algorithm.

Special thank you to Gerald Bakker for his writeup on Adobe’s various algorithms:

  • https://geraldbakker.nl/psnumbers/auto-options.html

    • Installation

    Simply drag the image above into ComfyUI and use ComfyUI Manager » Install Missing Custom Nodes.

    Inputs

  • image: The input image(s) to process with the autotone algorithm
  • shadows: The color that defines the shadows of the image. This should be a comma-separated RGB value (e.g., ‘0,0,0’ for black) or HEX string (e.g. ‘#000000’).
  • highlights: The color that defines the highlights in the image. This should be a comma-separated RGB value (e.g., ‘255,255,255’ for white) or HEX string (e.g. ‘#FFFFFF’).
  • shadow_clip: The percentage of pixels to clip from the shadows. This is a value between 0 and 1.
  • highlight_clip: The percentage of pixels to clip from the highlights. This is a value between 0 and 1.

    • Bonus Comparison

    Below is a workflow that demonstrates the difference between Image Autotone and a few other image contrast nodes on the ComfyUI Registry.

    This node was adapted from the [image_edit] shortcode of Unprompted, my Automatic1111 extension.