skunkworxdark / match_histogram

An InvokeAI node to match a histogram from one image to another.

match-histogram Node for InvokeAI

Discord Link :- match-histogram

An InvokeAI node to match a histogram from one image to another. This is a bit like the color correct node in the main InvokeAI but this works in the YCbCr colourspace and can handle images of different sizes. Also does not require a mask input.

• Option to only transfer luminance channel.
• Option to save output as grayscale

A good use case is to normalize the colors of an image that has been through the tiled scaling workflow of my XYGrid Nodes.

Usage

Install

There are two options to install the nodes:

1. Recommended: Use Git to clone the repo into the invokeai/nodes directory. This allows updating via git pull.

   • In the InvokeAI nodes folder, run:

     For Latest Invoke (4.0+):

     git clone https://github.com/skunkworxdark/match_histogram.git

     For Invoke (3.5-3.7):

     git clone https://github.com/skunkworxdark/match_histogram/tree/invoke-3.7

2. Manually download and place match_histogram.py & init.py in a subfolder in the invokeai/nodes folder.

Update

Run a git pull from the match_histogram folder.

Or run the update.bat or update.sh.

For manual installs, download and replace the files.

Remove

Delete the match_histogram folder or rename it to _match_histogram and Invoke will ignore it.