ComfyUI: Selective inpainting with crop and stitch

ComfyUI Try it →Watch full video →Urban Decoders · Aug 2025

Demo summary

Using the 'ComfyUI inpaint crop and stitch' nodes, the user demonstrates masking a specific window area to insert a glowing LED digital facade.

Step-by-step

Install the 'easy use RG3' and 'ComfyUI inpaint crop and stitch' custom nodes via the ComfyUI Manager
Right-click your uploaded image and select 'Open in Mask Editor'
Adjust the brush size and paint over the object you want to remove
Save the selection
Enter a simple, specific prompt describing the addition
Connect the 'Inpaint Stitch' node to paste the generated section back into the original image
Run the workflow to generate the media screen in the masked area

Options

Adjust blending pixel edges in the Inpaint Crop node
Use prompts alone for selective editing instead of inpainting

Watch out for

Requires specific custom nodes (RG3 and Inpaint Crop and Stitch) to be installed first
The workflow requires an Inpaint Condition node for the KSampler

Tips

Make the mask slightly bigger than the object so that it can be blended in with the generation
Keep the prompt very simple and specific for better results
Use this workflow for iteratively making changes while maintaining the surrounding areas

Highlights

“this is great for iteratively making changes. You see it maintains the same areas.”

All demos from “Flux Kontext – 10 Creative AI Use Cases EXPLAINED for Design and Architecture”

0:361:56Creative replacement with Flux KontextThe user demonstrates how to change a specific part of an image, such as replacing a building entrance with a glass door, using the Flux Kontext model in ComfyUI while maintaining the original scene context.ComfyUI· AI Inpainting
3:241:56Combine image references for furniture placementUsing the image stitch node in ComfyUI, the creator demonstrates how to take an empty room and populate it with furniture from a second reference image using Flux Kontext.ComfyUI· AI Image Combiner
5:200:53Change season to winter in architectural scenesThe demonstration shows how to use a text prompt to transform a summer architectural shot into a winter scene with snow on rooftops and trees using Flux Kontext.ComfyUI· AI Inpainting
6:130:34Day to night time-of-day transformationThe creator shows how to prompt Flux Kontext to change a daytime architectural shot into an evening scene with ambient lighting.ComfyUI· AI Relighting
6:471:52Selective inpainting with crop and stitchCurrentUsing the 'ComfyUI inpaint crop and stitch' nodes, the user demonstrates masking a specific window area to insert a glowing LED digital facade.ComfyUI· AI Inpainting
8:540:42Style transfer to watercolor paintingThe video shows how to use a reference image to transform a realistic house photo into a watercolor painting style using Flux Kontext.ComfyUI· AI Style Transfer
11:001:54Applying LoRAs for line drawings and Lego stylesThe user demonstrates stacking LoRA models in ComfyUI to transform buildings into line drawings or Lego-style structures using Flux Kontext.ComfyUI· AI Style Transfer
12:540:41Editing text on shop frontsThe demonstration shows how to use Flux Kontext to change specific text on a shop sign while maintaining the original font style and position.ComfyUI· AI Inpainting
14:250:55Applying texture references to 3D objectsThe video demonstrates applying a tiled pattern texture from one image onto a white sofa in another image, effectively performing AI-based UV mapping.ComfyUI· AI Texture Generator
Watch “Flux Kontext – 10 Creative AI Use Cases EXPLAINED for Design and Architecture” →

AI Inpainting

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6:360:29Adjust mask expansion settingsThe user demonstrates adjusting the 'Grow Mask with Blur' node's expand value to accommodate larger replacement characters.MDMZ
3:120:44Anime character replacement with MochaA demonstration of replacing one anime character with another using a reference image, highlighting the tool's performance on complex outfits and hair.AI Search
7:201:48Edit image details with Flux KontextThe user shows how to load a reference image and use a text prompt to change specific features, such as changing a cartoon bunny's eye color to red.pixaroma
19:191:08Modify hairstyles and facial featuresThe creator shows how to change a subject's hair color and style (e.g., to a blunt bob with bangs) while attempting to maintain facial consistency using Flux Kontext.pixaroma
21:030:26Edit text within an imageA demonstration of Flux Kontext's ability to change text on a 3D render from 'Welcome' to 'Pixaroma' while maintaining the original font style and perspective.pixaroma
23:191:55Remove objects using Mask Editor and InpaintingThe user demonstrates precisely removing a necklace from a portrait by painting a mask in the ComfyUI Mask Editor and using an inpainting prompt.pixaroma
16:571:43Generate composite image with Flux 2The creator demonstrates image-to-image generation by uploading two reference photos and using a text prompt to replace a logo on a coffee can with his own headshot using the Flux model.WINBUSH
20:010:28Text-to-image manipulation in ComfyUIThe video shows how to use a text prompt to attempt to rotate an object in an image within a specific node-based workflow.WINBUSH
15:063:12Transform 3D scenes with Qwen2-VL (Qwen-Edit)The creator uses the Qwen-Edit workflow to perform complex scene modifications, such as changing weather to rain or snow, while preserving the original 3D geometry and text.Matt Hallett Visual
20:221:07Fix text and faces using Crop and StitchA demonstration of a custom 'crop image' node to isolate specific areas like signs or faces, regenerate them at native resolution, and stitch them back into the high-res image.Matt Hallett Visual
8:230:24Change hairstyles with AIA demonstration of using an outfit change system to apply a new haircut to a character by using a hairstyle image as a reference.Yaroflasher