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Background Inpainting

This project utilizes Stable Diffusion XL, ControlNet, IP-Adapter, Grounding DINO, SAM (Segment Anything), and LAMA Inpaint to achieve seamless background replacement while preserving the integrity of the original elements.

Specifically, GroundingDINO is used to identify the object, which are then segmented with SAM. The background is inpainted using ControlNet and Stable Diffusion XL, with guidance from Canny edge detection and IP-Adapter, while the foreground is removed via LAMA inpainting. At last, the identified object are copied and pasted into the newly generated background.

Installation

Before installing diffusers, make sure that PyTorch and Accelerate are already installed.

pip install diffusers["torch"] transformers

Install the SAM library and LAMA inpaint dependencies.

pip install -r requirements.txt

Install GroundingDINO from the git repository.

pip install git+https://github.com/IDEA-Research/GroundingDINO.git

You can download the pre-trained model weights from the following link.

Usage

Run the following command, and all generated images will be saved in the output_dir. The extract_prompt parameter refers to the elements you want to extract from the input_img.

python inference.py \
    --input_img ./assets/image.jpeg \
    --output_dir ./output \
    --extract_prompt "person" \
    --background_prompt "frozen landscape with a glacier in the background" \
    --negative_prompt "low quality, bad quality, sketches" \
    --ground_ckpt ./pretrained_models/groundingdino_swint_ogc.pth \
    --sam_ckpt ./pretrained_models/sam_vit_h_4b8939.pth \
    --lama_ckpt ./pretrained_models/big-lama \
    --ip_adapter_scale 0.4 \
    --controlnet_conditioning_scale 0.5

Acknowledgement

This code is based on Diffusers, IP-Adapter, GroundingDINO, SAM, Inpaint Anything.