|
--- |
|
tags: |
|
- text-to-image |
|
- stable-diffusion |
|
--- |
|
|
|
# Control-LoRA Model Card |
|
|
|
|
|
## Introduction |
|
By adding low-rank parameter efficient fine tuning to ControlNet, we introduce ***Control-LoRAs***. This approach offers a more efficient and compact method to bring model control to a wider variety of consumer GPUs. |
|
|
|
For each model below, you'll find: |
|
|
|
- *Rank 256* files (reducing the original `4.7GB` ControlNet models down to `~738MB` Control-LoRA models) and experimental |
|
- *Rank 128* files (reducing to model down to `~377MB`) |
|
|
|
Each Control-LoRA has been trained on a diverse range of image concepts and aspect ratios. |
|
|
|
### MiDaS and ClipDrop Depth |
|
 |
|
|
|
Depth estimation is an image processing technique that determines the distance of objects in a scene, providing a depth map that highlights variations in proximity. |
|
|
|
The Control-LoRA utilizes a grayscale depth map for guided generation. |
|
|
|
In the example above, we compare the depth results of `MiDaS dpt_beit_large_512` and the `Portrait Depth Estimation` (available in the [ClipDrop API by Stability AI](https://clipdrop.co/apis/docs/portrait-depth-estimation)). |
|
|
|
### Canny Edge |
|
 |
|
Canny Edge Detection is an image processing technique that identifies abrupt changes in intensity to highlight edges in an image. |
|
|
|
This Control-LoRA uses the edges from an image to generate the final image. |
|
|
|
### Photograph and Sketch Colorizer |
|
 |
|
These two Control-LoRAs can be used to colorize images. |
|
|
|
*Recolor* is designed to colorize black and white photographs. |
|
|
|
*Sketch* is designed to color in drawings input as a white-on-black image (either hand-drawn, or created with a `pidi` edge model). |
|
|
|
### Revision |
|
 |
|
Revision is a novel approach of using images to prompt SDXL. |
|
|
|
It uses pooled CLIP embeddings to produce images conceptually similar to the input. It can be used either in addition, or to replace text prompts. |
|
|
|
Revision also includes a blending function for combining multiple image or text concepts, as either positive or negative prompts. |
|
|
|
|
|
## Inference |
|
|
|
Control-LoRAs have been implemented into [ComfyUI](https://github.com/comfyanonymous/ComfyUI) and [StableSwarmUI](https://github.com/Stability-AI/StableSwarmUI) |
|
|
|
Basic ComfyUI workflows (using the base model only) are available in this repo. |
|
|
|
**ComfyUI example Recolor workflow:**  |
|
|
|
**StableSwarmUI Canny example:**  |
