๐ Controlnet - v1.1 - MLSD Version
ControlNet is a neural network structure that enables control of diffusion models by incorporating additional conditions. This specific checkpoint, based on MLSD images, can be used in conjunction with Stable Diffusion to generate diverse images.
๐ Quick Start
Controlnet v1.1 is the successor to Controlnet v1.0 and was released in lllyasviel/ControlNet-v1-1 by Lvmin Zhang. This checkpoint is a conversion of the original checkpoint into the diffusers
format and can be used with Stable Diffusion, such as runwayml/stable-diffusion-v1-5.
For more details, refer to the ๐งจ Diffusers docs.

โจ Features
ControlNet is a neural network structure designed to control diffusion models by adding extra conditions. This checkpoint corresponds to the ControlNet conditioned on MLSD images.
๐ฆ Installation
Prerequisites
If you want to process an image to create the auxiliary conditioning, external dependencies are required:
- Install https://github.com/patrickvonplaten/controlnet_aux
$ pip install controlnet_aux==0.3.0
- Install
diffusers
and related packages:
$ pip install diffusers transformers accelerate
๐ป Usage Examples
Basic Usage
It is recommended to use this checkpoint with Stable Diffusion v1-5 as it has been trained on it. Experimentally, it can also be used with other diffusion models like dreamboothed stable diffusion.
import torch
import os
from huggingface_hub import HfApi
from pathlib import Path
from diffusers.utils import load_image
from PIL import Image
import numpy as np
from controlnet_aux import MLSDdetector
from diffusers import (
ControlNetModel,
StableDiffusionControlNetPipeline,
UniPCMultistepScheduler,
)
checkpoint = "lllyasviel/control_v11p_sd15_mlsd"
image = load_image(
"https://huggingface.co/lllyasviel/control_v11p_sd15_mlsd/resolve/main/images/input.png"
)
prompt = "royal chamber with fancy bed"
processor = MLSDdetector.from_pretrained('lllyasviel/ControlNet')
control_image = processor(image)
control_image.save("./images/control.png")
controlnet = ControlNetModel.from_pretrained(checkpoint, torch_dtype=torch.float16)
pipe = StableDiffusionControlNetPipeline.from_pretrained(
"runwayml/stable-diffusion-v1-5", controlnet=controlnet, torch_dtype=torch.float16
)
pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config)
pipe.enable_model_cpu_offload()
generator = torch.manual_seed(0)
image = pipe(prompt, num_inference_steps=30, generator=generator, image=control_image).images[0]
image.save('images/image_out.png')

๐ Documentation
Model Details
Introduction
Controlnet was proposed in Adding Conditional Control to Text-to-Image Diffusion Models by Lvmin Zhang and Maneesh Agrawala.
The abstract reads as follows:
We present a neural network structure, ControlNet, to control pretrained large diffusion models to support additional input conditions. 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). Moreover, training a ControlNet is as fast as fine-tuning a diffusion model, and the model can be trained on a personal devices. Alternatively, if powerful computation clusters are available, the model can scale to large amounts (millions to billions) of data. We report that large diffusion models like Stable Diffusion can be augmented with ControlNets to enable conditional inputs like edge maps, segmentation maps, keypoints, etc. This may enrich the methods to control large diffusion models and further facilitate related applications.
Other released checkpoints v1-1
The authors released 14 different checkpoints, each trained with Stable Diffusion v1-5 on a different type of conditioning:
๐ License
The model is released under The CreativeML OpenRAIL M license, an Open RAIL M license, adapted from the work of BigScience and the RAIL Initiative in the area of responsible AI licensing. See also the article about the BLOOM Open RAIL license on which our license is based.