ComfyUI: Image-to-image generation with denoising

Demo summary
Demonstrates the image-to-image process by loading an existing photo and adjusting the denoising strength to create variations.
Step-by-step
- Drag the image connector out from the VAE Decode node
- Select Preview Image to create the output node
- Click Queue Prompt to start the generation
- Adjust the Denoising strength value in the KSampler node
- Click Queue Prompt again to generate a new variation
Options
- Set Denoising strength to a low value (e.g., 0.3) for high similarity to the original
- Set Denoising strength to a high value (e.g., 0.8) for less similarity to the original
Tips
- Note that ComfyUI only reruns the nodes affected by changed settings, making it more efficient for iterative testing.
Highlights
“this makes comfy UI very efficient”
All demos from “Master AI image generation - ComfyUI FULL TUTORIAL”
7:390:44Basic text-to-image generation in ComfyUIThe user demonstrates a basic text-to-image workflow using the RealVisXL model to generate an image of a castle in a forest.ComfyUI· Text to Image
8:418:40Building a ComfyUI workflow from scratchA step-by-step walkthrough of adding nodes (Checkpoint, CLIP Text Encode, KSampler, VAE Decode) and connecting them to build a custom image generation pipeline.ComfyUI· AI Image Generator
19:571:09Generating a medieval warrior with batch processingDemonstrates generating multiple images of a medieval warrior by increasing the batch size in the Empty Latent Image node.ComfyUI· AI Image Generator
25:330:32Importing workflows from image metadataShows how to drag an existing AI-generated image into the ComfyUI canvas to automatically reconstruct the entire node workflow used to create it.ComfyUI· AI Image Generator
30:073:41Upscaling images using modelsDemonstrates upscaling a low-resolution 512x512 image using the 4X Ultra Sharp model to add clarity and detail.ComfyUI· AI Image Upscaler
36:021:32Using Preview Chooser for selective upscalingShows how to use the Image Chooser node to generate a batch of images and selectively progress only one specific image to the upscaler.ComfyUI· AI Image Upscaler
41:391:29Image-to-image generation with denoisingCurrentDemonstrates the image-to-image process by loading an existing photo and adjusting the denoising strength to create variations.ComfyUI· Image to Image
43:496:52Tiled upscaling with Ultimate SD UpscaleA detailed demo of the Ultimate SD Upscale node, showing how tiled upscaling generates significantly higher facial detail than standard upscaling.ComfyUI· AI Image Upscaler
58:094:05Controlling character poses with ControlNetDemonstrates using the OpenPose pre-processor and ControlNet Union model to force a generated princess character into a specific pose from a reference image.ComfyUI· AI Image Generator
1:02:141:23Landscape composition control with Canny ControlNetShows how to use the Canny edge pre-processor to maintain the shape of mountains while changing the lighting to a sunset.ComfyUI· AI Inpainting
1:09:444:55Face swapping with InstantIDDemonstrates the full setup and execution of InstantID to swap Will Smith's face onto a generated policeman character in both realistic and watercolor styles.ComfyUI· AI Face Swap Generator- Watch “Master AI image generation - ComfyUI FULL TUTORIAL” →
Image to Image
41:391:29Image-to-image generation with denoisingCurrentDemonstrates the image-to-image process by loading an existing photo and adjusting the denoising strength to create variations.AI Search
32:382:30Image-to-Image generation using DenoiseDemonstrates how the Denoise slider in the KSampler affects the transformation of a source image (cat) into a new subject (dog) based on a prompt.Sebastian Kamph
1:27:395:06Image-to-Image Workflow with Denoise ControlDemonstration of converting a text-to-image workflow into an image-to-image setup using VAE Encode and adjusting the denoise parameter to control variation.pixaroma
33:282:46Image-to-image transformation with Z-ImageThe user demonstrates how to modify a ComfyUI workflow to perform image-to-image tasks, converting a 3D animation into a realistic photo using Z-Image Turbo.AI Search
4:040:41Upload character reference imageThe user shows how to upload a reference image for character replacement or stylization within the ComfyUI workflow.MDMZ
28:561:50Image-to-Image Workflow in ComfyUIThe demo shows an image-to-image setup using a 'Load Image' node and a VAE Encode node to use an existing image as a structural guide for the K Sampler.Joey /// VP Land
3:041:18Enhance 3D clay models with Flux and ControlNetThe creator demonstrates using the Flux model in ComfyUI with a Depth ControlNet to transform a gray 3D massing model into a detailed streetcar scene while maintaining structural integrity.Matt Hallett Visual
8:512:02Image-to-image enhancement with denoisingThe video shows how to use the 'denoising' strength in ComfyUI to blend a base 3D rendering with AI-generated details like autumn trees and realistic people.Matt Hallett Visual
9:050:49Image-to-image generation with FLUX.1 KontextDemonstration of uploading an image and using a natural language prompt to transform a character's appearance while maintaining consistency using FLUX.1 Kontext.AI様の下僕
9:314:03Image-to-image denoising with FluxThe user demonstrates how Flux handles image-to-image tasks by adjusting the denoise strength from 0.4 to 1.0 to show how it differs from Stable Diffusion.Artificial Images
2:450:14Analyzing reference images for Ghost Mask modeThe video shows the process of using the 'Analyze' button to generate a short description of a subject for the Ghost Mask reference mode.RedShade
ComfyUI