ComfyUI Extension: Olm Image Adjust for ComfyUI

ComfyUI-Olm-ImageAdjust Introduction

ComfyUI-Olm-ImageAdjust is a powerful yet user-friendly extension designed to enhance your image editing experience within the ComfyUI environment. Created by the author, Olli Sorjonen, this extension provides an interactive image adjustment node that allows you to make real-time changes to your images with ease. Whether you're looking to fine-tune exposure, adjust color balance, or apply creative stylizations, ComfyUI-Olm-ImageAdjust offers a streamlined solution that integrates seamlessly into your workflow. This tool is particularly beneficial for AI artists who want to see the impact of their adjustments instantly, without the need to re-run the entire graph.

How ComfyUI-Olm-ImageAdjust Works

At its core, ComfyUI-Olm-ImageAdjust operates as a node within the ComfyUI framework. Think of it as a control panel for your image, where you can tweak various settings to achieve the desired look. The extension leverages core Python libraries such as Pillow, NumPy, and Torch to perform image adjustments efficiently. When you connect an image to the Olm Image Adjust node, you can use sliders to modify parameters like exposure, brightness, and contrast. The changes are reflected in real-time, allowing you to experiment and see the results immediately. This real-time feedback loop is akin to having a virtual darkroom where you can adjust the image's properties on the fly.

ComfyUI-Olm-ImageAdjust Features

Real-Time Preview

One of the standout features of ComfyUI-Olm-ImageAdjust is its real-time preview capability. As you adjust the sliders, the image updates instantly within the node interface. This feature eliminates the need to re-run the graph, saving you time and allowing for more creative exploration.

Comprehensive Controls

The extension offers 11 finely-tuned parameters to help you achieve the perfect image:

• Exposure: Simulates camera exposure by adjusting overall light intensity.
• Brightness: Alters the image's lightness or darkness in a linear fashion.
• Contrast: Modifies the difference between light and dark areas, enhancing or reducing it.
• Gamma: Provides non-linear adjustments to midtones, ideal for softening shadows.
• Shadows: Adjusts the darkest areas, either lifting or deepening them.
• Midtones: Affects mid-level brightness ranges, boosting or toning them down.
• Highlights: Changes the brightest parts without impacting shadows.
• Hue: Rotates colors along the color wheel, altering the overall color scheme.
• Saturation: Controls the intensity of colors, making them more or less vivid.
• Value: Scales the HSV "value" channel uniformly.
• Vibrance: Enhances muted colors without over-saturating already vivid ones.

Integrated Image Preview

A thumbnail within the node displays your updated image, providing a quick visual reference as you make adjustments.

Responsive UI

The user interface is designed for immediate feedback, making it easy to achieve the perfect look without unnecessary backtracking. The preview image and sliders scale responsively, allowing for precise tweaks.

ComfyUI-Olm-ImageAdjust Models

Currently, ComfyUI-Olm-ImageAdjust does not include different models. It focuses on providing a robust set of features within a single, cohesive node.

What's New with ComfyUI-Olm-ImageAdjust

Version 1.0.1.1

• Update: Chained original mouse event handlers to maintain subgraph header button functionality in ComfyUI frontend 1.24.4 and later. This update ensures that the extension remains compatible with the latest ComfyUI updates, preserving the user experience.

Version 1.0.1

• Enhancement: Improved preview updates for a smoother user experience.

Version 1.0

• Initial Release: Launched with a comprehensive set of features for image adjustment.

Troubleshooting ComfyUI-Olm-ImageAdjust

Common Issues and Solutions

• Real-Time Preview Not Updating: If the real-time preview does not update, ensure that the graph has been initially run. Adjustments will be instant, but the preview refreshes internally until another execution is triggered.
• Inconsistent Vibrance Results: The vibrance feature may produce inconsistent results in edge cases. Experiment with different settings to achieve the desired effect.
• Performance Variations: Performance may vary based on your CPU/GPU, image size, and ComfyUI installation. Consider optimizing these factors for better results.

Frequently Asked Questions

• Q: Can I use this extension with compressed images?
• A: It works best with uncompressed RGB images, as is common in image processing.
• Q: Is there a risk of losing my work?
• A: As with any experimental tool, it's advisable to back up your projects frequently.

Learn More about ComfyUI-Olm-ImageAdjust

For further exploration and support, consider visiting the official GitHub repository where you can find additional documentation and updates. Engaging with the community through forums and discussion boards can also provide valuable insights and assistance as you work with ComfyUI-Olm-ImageAdjust.