Differential Diffusion - Inpainting on Steroids!

Olivio Sarikas
3 Apr 202406:32

TLDRThe video script introduces differential diffusion, a powerful image inpainting technique that offers two main advantages: a better understanding of image content for natural inpainting and the ability to define inpainting intensity on a pixel-by-pixel basis using gray values. The script demonstrates the technique's application in a fresh install of Flut Diffusion and compares it with the classic inpainting method, showing that differential diffusion yields more accurate and satisfying results, especially with the right mask and noise settings.


  • 🎨 Differential diffusion is a new technique in image inpainting that offers better understanding of the image content.
  • πŸš€ It provides two main benefits: more natural inpainting and the ability to control the intensity of changes on a pixel-by-pixel basis using gray values.
  • πŸ–ŒοΈ Darker gray values in the mask result in more significant image replacement, allowing for detailed editing.
  • πŸ› οΈ The method is not yet fully integrated into Automatic 1111 but can be used with blood diffusion, although it might require some effort to get it running.
  • πŸ”„ A fresh install of flut diffusion is required to access the differential diffusion feature in the scripts.
  • 🎭 The feature includes options to enable differential diffusion, invert masks, set mask strength, and select models for rendering.
  • πŸ–ΌοΈ The script also allows for loading a mask or generating one automatically, though there may be issues that need troubleshooting.
  • πŸŒ‰ The 'preview bridge' tool from the impact pack helps in visualizing the mask and image for more precise inpainting.
  • πŸ“ˆ Differential diffusion demonstrates superior performance in structure understanding and detail generation compared to classic inpainting methods.
  • πŸ”§ Adjusting the D noise value and mask blurring can help in fine-tuning the inpainting results for better image quality.
  • πŸŽ₯ The video provides a walkthrough of a basic workflow using differential diffusion in combination with other tools for image generation and editing.

Q & A

  • What is differential diffusion in the context of the provided transcript?

    -Differential diffusion is a method used in image processing, particularly for inpainting tasks. It offers two major benefits: a better understanding of the image content, leading to more natural inpainting, and the ability to use different gray values to define the extent of changes on a pixel-by-pixel level.

  • How does differential diffusion improve the inpainting process compared to traditional methods?

    -Differential diffusion enhances the inpainting process by understanding the image's structure more accurately, allowing for more precise and natural replacements of the targeted areas. It also provides control over the level of change through the use of gray values in a mask, leading to smoother transitions and better integration with the original image.

  • What is the significance of the gray values in the differential diffusion method?

    -The gray values in differential diffusion are crucial as they determine the intensity of the inpainting process. The darker the gray value in the mask, the more the image in that area will be replaced or altered, allowing for a high level of control and precision in the editing process.

  • Is differential diffusion currently available in automatic 1111?

    -At the time of the transcript, differential diffusion has not yet been integrated into automatic 1111. However, it can be used within other software like blood diffusion, although the speaker encountered difficulties in getting it to run.

  • How can one utilize differential diffusion in comi?

    -In comi, differential diffusion can be utilized by first setting up a basic process with a model, positive and negative prompts, and a K sampler. Then, a preview bridge from the impact pack is used to preview and paint the mask. The mask is edited in the mask editor, where changes can be made to specific areas of the image. The differential diffusion node is placed between the model and the CAS sampler for the process to take effect.

  • What are the steps to install and use differential diffusion in comi?

    -To install and use differential diffusion in comi, one must first access the manager window and click on 'update all' to ensure the latest version is installed. If there are any red notes in the workflow, click on 'install missing custom notes' and follow the prompts to install the suggested items. After installation, restart comi to apply the changes.

  • How does the mask's size and D noise value affect the inpainting results in differential diffusion?

    -The mask's size directly influences the area that is targeted for inpainting. If the mask is too small, the changes may not be fully rendered, causing the edges to fade out. The D noise value determines the level of randomness in the generation; a higher value may lead to less accurate and more blurred results. Adjusting these parameters is crucial for achieving satisfactory inpainting outcomes.

  • What were the observed results when comparing differential diffusion with classic inpainting?

    -When comparing the two methods, differential diffusion produced a more accurate and natural inpainting result, especially in terms of facial structure and the integration of new elements like sunglasses. The classic inpainting method resulted in less satisfactory outcomes, with issues like fading glasses, poorly rendered eyebrows, and a less seamless integration with the hair.

  • How can one optimize the differential diffusion process?

    -Optimizing the differential diffusion process involves fine-tuning the mask's size and the D noise value. A larger mask can cover more area, while adjusting the D noise value can control the level of detail and randomness. Additionally, applying Gaussian blur to the mask can soften its edges, leading to a more natural blend with the rest of the image.

  • What was the outcome of the experiment with a larger mask and adjusted D noise value?

    -Using a larger mask and lowering the D noise value resulted in glasses being more prominently displayed in the inpainted image. However, there were still imperfections such as strange rendering at the edges, issues with the eyebrows, and missing hair details. This suggests that further adjustments and fine-tuning may be necessary for optimal results.

  • What was the conclusion drawn from the video's demonstration of differential diffusion?

    -The conclusion from the video demonstration is that differential diffusion is a powerful tool for inpainting that can yield very satisfying results on the first try, especially when compared to classic inpainting methods. The method's ability to understand and replicate facial structures accurately makes it a promising technique for image editing tasks.



🎨 Introducing Differential Diffusion in Image Editing

This paragraph introduces the concept of differential diffusion, a method in image editing that leverages AI to understand and inpaint images more naturally. It highlights two main benefits: the ability to replace elements in an image with a more natural look, and the use of gray values to define the extent of inpainting on a pixel-by-pixel basis. The script also discusses the current limitations of the method, such as not being fully integrated into certain software, and provides a step-by-step guide on how to use differential diffusion within a specific software environment. Additionally, it mentions the need for a fresh installation of the software and the process of enabling the differential diffusion feature, including mask settings and model selection. The paragraph concludes with a note on the potential for further exploration and experimentation with the method.


πŸ–ŒοΈ Applying Differential Diffusion in Practice

This paragraph delves into the practical application of differential diffusion in image editing, particularly within a comic creation software. It outlines the process of building a simple classic process for image generation, which includes loading a model, using positive and negative prompts, and employing a K sampler and VAE decode for image creation. The paragraph emphasizes the use of a preview bridge from an impact pack to visualize the image and mask painting. It details the process of painting a mask onto an image, saving the changes, and the importance of mask conversion and Gaussian blur for seamless integration with the rest of the image. The script then compares the results of differential diffusion with classic inpainting methods, highlighting the improved structure and detail achieved with differential diffusion. The paragraph concludes with a call to action for viewers to share their thoughts on the new method and a reminder to support the content creator.



πŸ’‘differential diffusion

Differential diffusion is a technique in image processing that allows for more natural inpainting by understanding the structure of the image better. It is used to replace or modify parts of an image in a way that blends seamlessly with the rest of the content. In the video, this method is highlighted as a powerful tool for editing images on a pixel-by-pixel level, particularly useful for tasks such as adding sunglasses to a face, where the structure needs to fit correctly.


Inpainting is the process of editing images by filling in missing or unwanted parts with new content that matches the surrounding area. It's a form of image reconstruction where the algorithm or tool predicts what should be in the 'painted' area based on the context of the image. In the video, inpainting is the main theme, and the author discusses a new method for achieving more accurate and natural-looking results.


A mask in image editing is a layer that defines which parts of the image should be affected by certain adjustments or effects. It is used to isolate specific areas for manipulation without altering the rest of the image. In the context of the video, the author uses a mask to define where inpainting should occur, allowing for precise control over the changes made to the image.

πŸ’‘gray values

Gray values refer to the shades of gray in a monochrome image or the levels of transparency in a mask. These values are crucial in determining the intensity of the effect applied to the image. In the video, the author explains how different gray values in a mask can dictate how much of the image is replaced or altered during the inpainting process, with darker values leading to more significant changes.

πŸ’‘automatic 1111

Automatic 1111 seems to be a reference to a specific software or tool version mentioned in the video. Although not explicitly defined in the script, it likely represents a software platform or feature that the author is comparing with the differential diffusion method. The comparison is made to highlight the advantages of the new technique over the existing tools.

πŸ’‘blood diffusion

Blood diffusion is likely a term used to describe a specific type of image processing or diffusion technique. While the script does not provide a detailed explanation, it seems to be a method or tool that the author attempted to use in conjunction with differential diffusion but encountered difficulties.

πŸ’‘flut diffusion

Flut diffusion appears to be a software or tool used for image processing, specifically for the task of diffusion or inpainting. The author mentions reinstalling flut diffusion, suggesting it as the platform where the differential diffusion technique is applied and demonstrated in the video.


In the context of the video, scripts likely refer to the sets of instructions or programs that control the image processing tasks. These scripts may include various settings and options for the differential diffusion technique, allowing users to customize their image editing workflows.


COMI seems to be a software or platform used for image editing and processing, where the author demonstrates the differential diffusion technique. It is presented as a powerful alternative to the automatic 1111 tool, offering more capabilities and flexibility in image manipulation.

πŸ’‘preview bridge

The preview bridge is a feature or tool mentioned in the video that allows users to view and edit masks in real-time before applying them to the final image. This tool seems to be part of the impact pack, and it helps in achieving precise control over the image editing process by providing a visual representation of the mask and its effects.

πŸ’‘gaussian blur

Gaussian blur is a technique used in image processing to reduce noise and sharpness in an image, creating a soft, blurred effect. It is named after the Gaussian function, which describes the distribution of the blur. In the video, the author applies a Gaussian blur to the mask to make its edges softer and blend better with the rest of the image, avoiding harsh transitions between the edited and unedited parts.


Differential diffusion is a new method in painting that operates like it's on steroids, offering improved image inpainting.

This technique has two major benefits: better understanding of the image and the ability to replace desired areas more naturally.

Differential diffusion allows the use of different gray values to define the extent of changes on a pixel-by-pixel basis.

The darker the gray value in the mask, the more the image will be replaced, providing precise control.

Although not yet integrated into Automatic 1111, differential diffusion can be utilized within blood diffusion, albeit with some difficulty.

A fresh install of flut diffusion reveals differential diffusion as one of the choices in the script menu.

With the new update, users can enable differential diffusion, adjust mask inverting and strength, and select a model for rendering.

Mask images can be loaded or auto-generated by the system, although there might be issues like null errors.

The comic software provides a more powerful application of differential diffusion, as demonstrated in the workflow shared by the speaker.

The workflow begins with a simple classic process, loading a model, applying positive and negative prompts, and using the K sampler and VAE decode to generate an image.

A preview bridge from the impact pack is used to show the image and process the mask painting, which is crucial for the inpainting process.

The mask is painted onto the image, and adjustments like Gaussian blur can be applied to soften the mask edges for better blending.

Comparing differential diffusion with classic inpainting, the former shows superior understanding of facial structures and generates more accurate details.

Even with the same D noise level, differential diffusion provides better results, fitting the new elements to the face more naturally.

The differential diffusion node, though small, plays a significant role in the process, situated between the model and the CAS sampler.

To install the necessary components, users should visit the manager window, update all to the latest version, and install any missing custom notes.

Adjustments such as enlarging the mask and tweaking D noise values can help improve the inpainting results.

Despite some imperfections, the results from differential diffusion with a blurry mask and D noise at one are notably more satisfying.

The speaker invites viewers to share their thoughts on this new method and expresses satisfaction with the results obtained.