Added demo instructions to main readme

README.md

@@ -33,11 +33,11 @@ cd segment-anything; pip install -e .
 ```
 
 The following optional dependencies are necessary for mask post-processing, saving masks in COCO format, the example notebooks, and exporting the model in ONNX format. `jupyter` is also required to run the example notebooks.
+
 ```
 pip install opencv-python pycocotools matplotlib onnxruntime onnx
 ```
 
-
 ## <a name="GettingStarted"></a>Getting Started
 
 First download a [model checkpoint](#model-checkpoints). Then the model can be used in just a few lines to get masks from a given prompt:
@@ -82,25 +82,31 @@ python scripts/export_onnx_model.py --checkpoint <path/to/checkpoint> --model-ty
 
 See the [example notebook](https://github.com/facebookresearch/segment-anything/blob/main/notebooks/onnx_model_example.ipynb) for details on how to combine image preprocessing via SAM's backbone with mask prediction using the ONNX model. It is recommended to use the latest stable version of PyTorch for ONNX export.
 
+### Web demo
+
+The `demo/` folder has a simple one page React app which shows how to run mask prediction with the exported ONNX model in a web browser with multithreading. Please see [`demo/README.md`](https://github.com/facebookresearch/segment-anything/blob/main/demo/README.md) for more details.
+
 ## <a name="Models"></a>Model Checkpoints
 
-Three model versions of the model are available with different backbone sizes. These models can be instantiated by running 
+Three model versions of the model are available with different backbone sizes. These models can be instantiated by running
+
 ```
 from segment_anything import sam_model_registry
 sam = sam_model_registry["<model_type>"](checkpoint="<path/to/checkpoint>")
 ```
+
 Click the links below to download the checkpoint for the corresponding model type.
 
-* **`default` or `vit_h`: [ViT-H SAM model.](https://dl.fbaipublicfiles.com/segment_anything/sam_vit_h_4b8939.pth)**
-* `vit_l`: [ViT-L SAM model.](https://dl.fbaipublicfiles.com/segment_anything/sam_vit_l_0b3195.pth)
-* `vit_b`: [ViT-B SAM model.](https://dl.fbaipublicfiles.com/segment_anything/sam_vit_b_01ec64.pth)
+- **`default` or `vit_h`: [ViT-H SAM model.](https://dl.fbaipublicfiles.com/segment_anything/sam_vit_h_4b8939.pth)**
+- `vit_l`: [ViT-L SAM model.](https://dl.fbaipublicfiles.com/segment_anything/sam_vit_l_0b3195.pth)
+- `vit_b`: [ViT-B SAM model.](https://dl.fbaipublicfiles.com/segment_anything/sam_vit_b_01ec64.pth)
 
 ## Dataset
+
 See [here](https://ai.facebook.com/datasets/segment-anything/) for an overview of the datastet. The dataset can be downloaded [here](https://ai.facebook.com/datasets/segment-anything-downloads/). By downloading the datasets you agree that you have read and accepted the terms of the SA-1B Dataset Research License.
 
 We save masks per image as a json file. It can be loaded as a dictionary in python in the below format.
 
-
 ```python
 {
     "image"                 : image_info,
@@ -129,14 +135,16 @@ annotation {
 Image ids can be found in sa_images_ids.txt which can be downloaded using the above [link](https://ai.facebook.com/datasets/segment-anything-downloads/) as well.
 
 To decode a mask in COCO RLE format into binary:
+
 ```
 from pycocotools import mask as mask_utils
 mask = mask_utils.decode(annotation["segmentation"])
 ```
+
 See [here](https://github.com/cocodataset/cocoapi/blob/master/PythonAPI/pycocotools/mask.py) for more instructions to manipulate masks stored in RLE format.
 
-
 ## License
+
 The model is licensed under the [Apache 2.0 license](LICENSE).
 
 ## Contributing
@@ -151,11 +159,11 @@ Aaron Adcock, Vaibhav Aggarwal, Morteza Behrooz, Cheng-Yang Fu, Ashley Gabriel,
 
 ## Citing Segment Anything
 
-If you use SAM or SA-1B in your research, please use the following BibTeX entry. 
+If you use SAM or SA-1B in your research, please use the following BibTeX entry.
 
 ```
 @article{kirillov2023segany,
-  title={Segment Anything}, 
+  title={Segment Anything},
   author={Kirillov, Alexander and Mintun, Eric and Ravi, Nikhila and Mao, Hanzi and Rolland, Chloe and Gustafson, Laura and Xiao, Tete and Whitehead, Spencer and Berg, Alexander C. and Lo, Wan-Yen and Doll{\'a}r, Piotr and Girshick, Ross},
   journal={arXiv:2304.02643},
   year={2023}