ComfyUI > Nodes > ComfyUI-UniversalToolkit > Fill Masked Area (UTK)

ComfyUI Node: Fill Masked Area (UTK)

Class Name

FillMaskedArea_UTK

Category
UniversalToolkit/Image
Author
whmc76 (Account age: 1110days)
Extension
ComfyUI-UniversalToolkit
Latest Updated
2026-03-16
Github Stars
0.07K

How to Install ComfyUI-UniversalToolkit

Install this extension via the ComfyUI Manager by searching for ComfyUI-UniversalToolkit
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter ComfyUI-UniversalToolkit in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

Visit ComfyUI Online for ready-to-use ComfyUI environment

  • Free trial available
  • 16GB VRAM to 80GB VRAM GPU machines
  • 400+ preloaded models/nodes
  • Freedom to upload custom models/nodes
  • 200+ ready-to-run workflows
  • 100% private workspace with up to 200GB storage
  • Dedicated Support

Run ComfyUI Online

Fill Masked Area (UTK) Description

The FillMaskedArea_UTK node seamlessly fills masked image areas using advanced inpainting techniques.

Fill Masked Area (UTK):

The FillMaskedArea_UTK node is designed to intelligently fill masked areas within images using advanced algorithms. This node is particularly useful for tasks such as image inpainting, where you need to reconstruct missing or occluded parts of an image seamlessly. By leveraging techniques like binary erosion and Gaussian blurring, the node ensures that the transition between the filled area and the original image is smooth and natural. This capability is essential for AI artists who want to enhance or restore images without leaving noticeable artifacts. The node's primary goal is to provide a reliable and efficient method for filling in masked regions, making it a valuable tool in the digital artist's toolkit.

Fill Masked Area (UTK) Input Parameters:

mask

The mask parameter is a binary image that indicates the areas of the original image that need to be filled. Areas marked with a value greater than 0.5 are considered as masked and will be processed by the node. This parameter is crucial as it defines the regions that require inpainting, and its accuracy directly impacts the quality of the filled image. There are no specific minimum or maximum values for this parameter, but it should be a binary mask with values typically ranging between 0 and 1.

feathering

The feathering parameter controls the amount of smoothing applied to the edges of the masked area. A higher feathering value results in a more gradual transition between the filled area and the original image, which can help in achieving a more natural look. The feathering is applied using Gaussian blurring, where the sigma value is determined by dividing the feathering value by 3. The minimum value is 0, which means no feathering, and there is no strict maximum, but practical values usually range from 0 to 10.

Fill Masked Area (UTK) Output Parameters:

filled_image

The filled_image is the output parameter that provides the final image with the masked areas filled. This image is a blend of the original image and the inpainted regions, ensuring that the filled areas integrate seamlessly with the rest of the image. The output is a floating-point image with values normalized between 0 and 1, representing the pixel intensity. This output is crucial for artists who need a polished and artifact-free image after processing.

Fill Masked Area (UTK) Usage Tips:

  • To achieve the best results, ensure that the mask accurately represents the areas that need filling. A precise mask will lead to a more natural-looking filled image.
  • Experiment with different feathering values to find the optimal balance between a smooth transition and maintaining detail in the filled areas. Start with a lower value and gradually increase it to see how it affects the output.

Fill Masked Area (UTK) Common Errors and Solutions:

Mask is None

  • Explanation: This error occurs when the mask parameter is not provided or is invalid.
  • Solution: Ensure that you provide a valid binary mask as input. Check that the mask is correctly formatted and not empty.

Input image and mask size mismatch

  • Explanation: This error happens when the dimensions of the input image and the mask do not match.
  • Solution: Verify that the mask and the image have the same dimensions. Resize the mask if necessary to match the image size before processing.

Fill Masked Area (UTK) Related Nodes

Go back to the extension to check out more related nodes.
ComfyUI-UniversalToolkit
RunComfy
Copyright 2025 RunComfy. All Rights Reserved.

RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.

Fill Masked Area (UTK)