# Stable Diffusion Web UI ## [Visit sd-webui's Discord Server](https://discord.gg/gyXNe4NySY) [![Discord Server](https://user-images.githubusercontent.com/5977640/190528254-9b5b4423-47ee-4f24-b4f9-fd13fba37518.png)](https://discord.gg/gyXNe4NySY) ## Installation instructions for [Windows](/docs/1.installation.md), [Linux](/docs/1.linux-installation.md) ### Have an **issue**? * If the issue involves _a bug_ in **textual-inversion** create the issue on **_[sd-webui/stable-diffusion-webui](https://github.com/sd-webui/stable-diffusion-webui)_** * If you want to know how to **activate** or **use** textual-inversion see **_[hlky/sd-enable-textual-inversion](https://github.com/hlky/sd-enable-textual-inversion)_**. Activation not working? create the issue on **_[sd-webui/stable-diffusion-webui](https://github.com/sd-webui/stable-diffusion-webui)_** ### Want to ask a question or request a feature? Come to our [Discord Server](https://discord.gg/gyXNe4NySY) or use [Discussions](https://github.com/sd-webui/stable-diffusion-webui/discussions). ## Documentation [Documentaion is located here](https://sd-webui.github.io/stable-diffusion-webui/) ## Want to contribute? Check the [Contribution Guide](CONTRIBUTING.md) ## **Important** πŸ”₯ NEW! webui.cmd updates with any changes in environment.yaml file so the environment will always be up to date as long as you get the new environment.yaml file πŸ”₯ :fire: no need to remove environment, delete src folder and create again, MUCH simpler! πŸ”₯ -------------- ### Questions about **_[Upscalers](/docs/4.upscalers.md)_**? ### Questions about **_[Command line options](/docs/2.cli.md)_**? -------------- Features: * Gradio GUI: Idiot-proof, fully featured frontend for both txt2img and img2img generation * No more manually typing parameters, now all you have to do is write your prompt and adjust sliders * GFPGAN Face Correction πŸ”₯: [Download the model](/docs/1.installation.md#optional-additional-models) Automatically correct distorted faces with a built-in GFPGAN option, fixes them in less than half a second * RealESRGAN Upscaling πŸ”₯: [Download the models](/docs/1.installation.md#optional-additional-models) Boosts the resolution of images with a built-in RealESRGAN option * :computer: esrgan/gfpgan on cpu support :computer: * Textual inversion πŸ”₯: [info](https://textual-inversion.github.io/) - requires enabling, see [here](https://github.com/hlky/sd-enable-textual-inversion), script works as usual without it enabled * Advanced img2img editor :art: :fire: :art: * :fire::fire: Mask and crop :fire::fire: * Mask painting (NEW) πŸ–ŒοΈ: Powerful tool for re-generating only specific parts of an image you want to change * More k_diffusion samplers πŸ”₯πŸ”₯ : Far greater quality outputs than the default sampler, less distortion and more accurate * txt2img samplers: "DDIM", "PLMS", 'k_dpm_2_a', 'k_dpm_2', 'k_euler_a', 'k_euler', 'k_heun', 'k_lms' * img2img samplers: "DDIM", 'k_dpm_2_a', 'k_dpm_2', 'k_euler_a', 'k_euler', 'k_heun', 'k_lms' * Loopback (NEW) ➿: Automatically feed the last generated sample back into img2img * Prompt Weighting (NEW) πŸ‹οΈ: Adjust the strength of different terms in your prompt * :fire: gpu device selectable with --gpu :fire: * Memory Monitoring πŸ”₯: Shows Vram usage and generation time after outputting. * Word Seeds πŸ”₯: Use words instead of seed numbers * CFG: Classifier free guidance scale, a feature for fine-tuning your output * Launcher Automatic πŸ‘‘πŸ”₯ shortcut to load the model, no more typing in Conda * Lighter on Vram: 512x512 img2img & txt2img tested working on 6gb * and ???? # Stable Diffusion web UI A browser interface based on Gradio library for Stable Diffusion. Original script with Gradio UI was written by a kind anonymous user. This is a modification. ![](https://github.com/sd-webui/stable-diffusion-webui/blob/master/images/txt2img.jpg) ![](https://github.com/sd-webui/stable-diffusion-webui/blob/master/images/img2img.jpg) ![](https://github.com/sd-webui/stable-diffusion-webui/blob/master/images/gfpgan.jpg) ![](https://github.com/sd-webui/stable-diffusion-webui/blob/master/images/esrgan.jpg) ### GFPGAN If you want to use GFPGAN to improve generated faces, you need to install it separately. Download [GFPGANv1.3.pth](https://github.com/TencentARC/GFPGAN/releases/download/v1.3.0/GFPGANv1.3.pth) and put it into the `/stable-diffusion-webui/src/gfpgan/experiments/pretrained_models` directory. ### RealESRGAN Download [RealESRGAN_x4plus.pth](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth) and [RealESRGAN_x4plus_anime_6B.pth](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth). Put them into the `stable-diffusion-webui/src/realesrgan/experiments/pretrained_models` directory. ### LDSR * Download **LDSR** [project.yaml](https://heibox.uni-heidelberg.de/f/31a76b13ea27482981b4/?dl=1) and [ model last.cpkt](https://heibox.uni-heidelberg.de/f/578df07c8fc04ffbadf3/?dl=1). Rename last.ckpt to model.ckpt and place both under stable-diffusion-webui/src/latent-diffusion/experiments/pretrained_models/ ### Web UI When launching, you may get a very long warning message related to some weights not being used. You may freely ignore it. After a while, you will get a message like this: ``` Running on local URL: http://127.0.0.1:7860/ ``` Open the URL in browser, and you are good to go. ## Features The script creates a web UI for Stable Diffusion's txt2img and img2img scripts. Following are features added that are not in original script. ### GFPGAN Lets you improve faces in pictures using the GFPGAN model. There is a checkbox in every tab to use GFPGAN at 100%, and also a separate tab that just allows you to use GFPGAN on any picture, with a slider that controls how strong the effect is. ![](images/GFPGAN.png) ### RealESRGAN Lets you double the resolution of generated images. There is a checkbox in every tab to use RealESRGAN, and you can choose between the regular upscaler and the anime version. There is also a separate tab for using RealESRGAN on any picture. ![](images/RealESRGAN.png) ### Sampling method selection txt2img samplers: "DDIM", "PLMS", 'k_dpm_2_a', 'k_dpm_2', 'k_euler_a', 'k_euler', 'k_heun', 'k_lms' img2img samplers: "DDIM", 'k_dpm_2_a', 'k_dpm_2', 'k_euler_a', 'k_euler', 'k_heun', 'k_lms' ![](images/sampling.png) ### Prompt matrix Separate multiple prompts using the `|` character, and the system will produce an image for every combination of them. For example, if you use `a busy city street in a modern city|illustration|cinematic lighting` prompt, there are four combinations possible (first part of prompt is always kept): - `a busy city street in a modern city` - `a busy city street in a modern city, illustration` - `a busy city street in a modern city, cinematic lighting` - `a busy city street in a modern city, illustration, cinematic lighting` Four images will be produced, in this order, all with same seed and each with corresponding prompt: ![](images/prompt-matrix.png) Another example, this time with 5 prompts and 16 variations: ![](images/prompt_matrix.jpg) If you use this feature, batch count will be ignored, because the number of pictures to produce depends on your prompts, but batch size will still work (generating multiple pictures at the same time for a small speed boost). ### Copy-paste generation parameters A text output provides generation parameters in an easy to copy-paste form for easy sharing. ![](images/kopipe.png) If you generate multiple pictures, the displayed seed will be the seed of the first one. ### Correct seeds for batches If you use a seed of 1000 to generate two batches of two images each, four generated images will have seeds: `1000, 1001, 1002, 1003`. Previous versions of the UI would produce `1000, x, 1001, x`, where x is an iamge that can't be generated by any seed. ### Resizing There are three options for resizing input images in img2img mode: - Just resize - simply resizes source image to target resolution, resulting in incorrect aspect ratio - Crop and resize - resize source image preserving aspect ratio so that entirety of target resolution is occupied by it, and crop parts that stick out - Resize and fill - resize source image preserving aspect ratio so that it entirely fits target resolution, and fill empty space by rows/columns from source image Example: ![](images/resizing.jpg) ### Loading Gradio's loading graphic has a very negative effect on the processing speed of the neural network. My RTX 3090 makes images about 10% faster when the tab with gradio is not active. By default, the UI now hides loading progress animation and replaces it with static "Loading..." text, which achieves the same effect. Use the --no-progressbar-hiding commandline option to revert this and show loading animations. ### Prompt validation Stable Diffusion has a limit for input text length. If your prompt is too long, you will get a warning in the text output field, showing which parts of your text were truncated and ignored by the model. ### Loopback A checkbox for img2img allowing to automatically feed output image as input for the next batch. Equivalent to saving output image, and replacing input image with it. Batch count setting controls how many iterations of this you get. Usually, when doing this, you would choose one of many images for the next iteration yourself, so the usefulness of this feature may be questionable, but I've managed to get some very nice outputs with it that I wasn't abble to get otherwise. Example: (cherrypicked result; original picture by anon) ![](images/loopback.jpg) ### --help ``` optional arguments: -h, --help show this help message and exit --ckpt CKPT path to checkpoint of model (default: models/ldm/stable-diffusion-v1/model.ckpt) --cli CLI don't launch web server, take Python function kwargs from this file. (default: None) --config CONFIG path to config which constructs model (default: configs/stable-diffusion/v1-inference.yaml) --defaults DEFAULTS path to configuration file providing UI defaults, uses same format as cli parameter (default: configs/webui/webui.yaml) --esrgan-cpu run ESRGAN on cpu (default: False) --esrgan-gpu ESRGAN_GPU run ESRGAN on specific gpu (overrides --gpu) (default: 0) --extra-models-cpu run extra models (GFGPAN/ESRGAN) on cpu (default: False) --extra-models-gpu run extra models (GFGPAN/ESRGAN) on gpu (default: False) --gfpgan-cpu run GFPGAN on cpu (default: False) --gfpgan-dir GFPGAN_DIR GFPGAN directory (default: ./src/gfpgan) --gfpgan-gpu GFPGAN_GPU run GFPGAN on specific gpu (overrides --gpu) (default: 0) --gpu GPU choose which GPU to use if you have multiple (default: 0) --grid-format GRID_FORMAT png for lossless png files; jpg:quality for lossy jpeg; webp:quality for lossy webp, or webp:-compression for lossless webp (default: jpg:95) --inbrowser automatically launch the interface in a new tab on the default browser (default: False) --ldsr-dir LDSR_DIR LDSR directory (default: ./src/latent-diffusion) --n_rows N_ROWS rows in the grid; use -1 for autodetect and 0 for n_rows to be same as batch_size (default: -1) (default: -1) --no-half do not switch the model to 16-bit floats (default: False) --no-progressbar-hiding do not hide progressbar in gradio UI (we hide it because it slows down ML if you have hardware accleration in browser) (default: False) --no-verify-input do not verify input to check if it's too long (default: False) --optimized-turbo alternative optimization mode that does not save as much VRAM but runs siginificantly faster (default: False) --optimized load the model onto the device piecemeal instead of all at once to reduce VRAM usage at the cost of performance (default: False) --outdir_img2img [OUTDIR_IMG2IMG] dir to write img2img results to (overrides --outdir) (default: None) --outdir_imglab [OUTDIR_IMGLAB] dir to write imglab results to (overrides --outdir) (default: None) --outdir_txt2img [OUTDIR_TXT2IMG] dir to write txt2img results to (overrides --outdir) (default: None) --outdir [OUTDIR] dir to write results to (default: None) --filename_format [FILENAME_FORMAT] filenames format (default: None) --port PORT choose the port for the gradio webserver to use (default: 7860) --precision {full,autocast} evaluate at this precision (default: autocast) --realesrgan-dir REALESRGAN_DIR RealESRGAN directory (default: ./src/realesrgan) --realesrgan-model REALESRGAN_MODEL Upscaling model for RealESRGAN (default: RealESRGAN_x4plus) --save-metadata Store generation parameters in the output png. Drop saved png into Image Lab to read parameters (default: False) --share-password SHARE_PASSWORD Sharing is open by default, use this to set a password. Username: webui (default: None) --share Should share your server on gradio.app, this allows you to use the UI from your mobile app (default: False) --skip-grid do not save a grid, only individual samples. Helpful when evaluating lots of samples (default: False) --skip-save do not save indiviual samples. For speed measurements. (default: False) --no-job-manager Don't use the experimental job manager on top of gradio (default: False) --max-jobs MAX_JOBS Maximum number of concurrent 'generate' commands (default: 1) --tiling Generate tiling images (default: False) ``` ----- # Stable Diffusion *Stable Diffusion was made possible thanks to a collaboration with [Stability AI](https://stability.ai/) and [Runway](https://runwayml.com/) and builds upon our previous work:* [**High-Resolution Image Synthesis with Latent Diffusion Models**](https://ommer-lab.com/research/latent-diffusion-models/)
[Robin Rombach](https://github.com/rromb)\*, [Andreas Blattmann](https://github.com/ablattmann)\*, [Dominik Lorenz](https://github.com/qp-qp)\, [Patrick Esser](https://github.com/pesser), [BjΓΆrn Ommer](https://hci.iwr.uni-heidelberg.de/Staff/bommer)
**CVPR '22 Oral** which is available on [GitHub](https://github.com/CompVis/latent-diffusion). PDF at [arXiv](https://arxiv.org/abs/2112.10752). Please also visit our [Project page](https://ommer-lab.com/research/latent-diffusion-models/). [Stable Diffusion](#stable-diffusion-v1) is a latent text-to-image diffusion model. Thanks to a generous compute donation from [Stability AI](https://stability.ai/) and support from [LAION](https://laion.ai/), we were able to train a Latent Diffusion Model on 512x512 images from a subset of the [LAION-5B](https://laion.ai/blog/laion-5b/) database. Similar to Google's [Imagen](https://arxiv.org/abs/2205.11487), this model uses a frozen CLIP ViT-L/14 text encoder to condition the model on text prompts. With its 860M UNet and 123M text encoder, the model is relatively lightweight and runs on a GPU with at least 10GB VRAM. See [this section](#stable-diffusion-v1) below and the [model card](https://huggingface.co/CompVis/stable-diffusion). ## Stable Diffusion v1 Stable Diffusion v1 refers to a specific configuration of the model architecture that uses a downsampling-factor 8 autoencoder with an 860M UNet and CLIP ViT-L/14 text encoder for the diffusion model. The model was pretrained on 256x256 images and then finetuned on 512x512 images. *Note: Stable Diffusion v1 is a general text-to-image diffusion model and therefore mirrors biases and (mis-)conceptions that are present in its training data. Details on the training procedure and data, as well as the intended use of the model can be found in the corresponding [model card](https://huggingface.co/CompVis/stable-diffusion). ## Comments - Our codebase for the diffusion models builds heavily on [OpenAI's ADM codebase](https://github.com/openai/guided-diffusion) and [https://github.com/lucidrains/denoising-diffusion-pytorch](https://github.com/lucidrains/denoising-diffusion-pytorch). Thanks for open-sourcing! - The implementation of the transformer encoder is from [x-transformers](https://github.com/lucidrains/x-transformers) by [lucidrains](https://github.com/lucidrains?tab=repositories). ## BibTeX ``` @misc{rombach2021highresolution, title={High-Resolution Image Synthesis with Latent Diffusion Models}, author={Robin Rombach and Andreas Blattmann and Dominik Lorenz and Patrick Esser and BjΓΆrn Ommer}, year={2021}, eprint={2112.10752}, archivePrefix={arXiv}, primaryClass={cs.CV} } ```