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.
https://github.com/SparknightLLC/ComfyUI-ImageAutotone
git clone https://github.com/SparknightLLC/ComfyUI-ImageAutotone
comfy node install comfyui-imageautotone