Modify images using canny edge detection

Run time and cost

Predictions run on Nvidia A100 GPU hardware. Predictions typically complete within 8 seconds.

Model by Lyumin Zhang


Input an image, and prompt the model to generate an image as you would for Stable Diffusion. Specify the Canny edge thresholds for more or less details in your image.

Model description

This model is ControlNet adapting Stable Diffusion to generate images that have the same structure as an input image of your choosing, using canny edge detection. The model is trained with a canny edge detector (with random thresholds) to obtain 3M edge-image- caption pairs from the internet. The model is trained with 600 GPU-hours with Nvidia A100 80G. The base model is Stable Diffusion 1.5.

ControlNet is a neural network structure which allows control of pretrained large diffusion models to support additional input conditions beyond prompts. The ControlNet learns task-specific conditions in an end-to-end way, and the learning is robust even when the training dataset is small (< 50k samples). Moreover, training a ControlNet is as fast as fine-tuning a diffusion model, and the model can be trained on a personal device. Alternatively, if powerful computation clusters are available, the model can scale to large amounts of training data (millions to billions of rows). Large diffusion models like Stable Diffusion can be augmented with ControlNets to enable conditional inputs like edge maps, segmentation maps, keypoints, etc.

Original model & code on GitHub

Other ControlNets

There are many different ways to use a ControlNet to modify the output of Stable Diffusion. Here are a few different options, all of which use an input image in addition to a prompt to generate an output. The methods process the input in different ways; try them out to see which works best for a given application.

ControlNet for generating images from drawings
Scribble: https://replicate.com/jagilley/controlnet-scribble

ControlNets for generating humans based on input image
Human Pose Detection: https://replicate.com/jagilley/controlnet-pose

ControlNets for preserving general qualities about an input image
Edge detection: https://replicate.com/jagilley/controlnet-canny
HED maps: https://replicate.com/jagilley/controlnet-hed
Depth map: https://replicate.com/jagilley/controlnet-depth2img
Hough line detection: https://replicate.com/jagilley/controlnet-hough
Normal map: https://replicate.com/jagilley/controlnet-normal


  doi = {10.48550/ARXIV.2302.05543},
  url = {https://arxiv.org/abs/2302.05543},
  author = {Zhang, Lvmin and Agrawala, Maneesh},
  keywords = {Computer Vision and Pattern Recognition (cs.CV), Artificial Intelligence (cs.AI), Graphics (cs.GR), Human-Computer Interaction (cs.HC), Multimedia (cs.MM), FOS: Computer and information sciences, FOS: Computer and information sciences},
  title = {Adding Conditional Control to Text-to-Image Diffusion Models},
  publisher = {arXiv},
  year = {2023},
  copyright = {arXiv.org perpetual, non-exclusive license}