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app.py

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+import os
+
+import cv2
+import gradio as gr
+import matplotlib
+import matplotlib.pyplot as plt
+import numpy as np
+import torch
+
+from PIL import Image
+
+from segment_anything import SamAutomaticMaskGenerator, SamPredictor, sam_model_registry
+
+# suppress server-side GUI windows
+matplotlib.pyplot.switch_backend('Agg') 
+
+# setup models
+device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+sam = sam_model_registry["vit_b"](checkpoint="./sam_vit_b_01ec64.pth")
+sam.to(device=device)
+mask_generator = SamAutomaticMaskGenerator(sam)
+predictor = SamPredictor(sam)
+
+
+# copied from: https://github.com/facebookresearch/segment-anything
+def show_anns(anns):
+    if len(anns) == 0:
+        return
+    sorted_anns = sorted(anns, key=(lambda x: x['area']), reverse=True)
+    ax = plt.gca()
+    ax.set_autoscale_on(False)
+    polygons = []
+    color = []
+    for ann in sorted_anns:
+        m = ann['segmentation']
+        img = np.ones((m.shape[0], m.shape[1], 3))
+        color_mask = np.random.random((1, 3)).tolist()[0]
+        for i in range(3):
+            img[:,:,i] = color_mask[i]
+        ax.imshow(np.dstack((img, m*0.35)))
+
+
+# demo function
+def segment_image(input_image):
+
+    if input_image is not None:
+
+        # generate masks
+        masks = mask_generator.generate(input_image)
+
+        # add masks to image
+        plt.clf()
+        ppi = 100
+        height, width, _ = input_image.shape
+        plt.figure(figsize=(width / ppi, height / ppi))  # convert pixel to inches
+        plt.imshow(input_image)
+        show_anns(masks)
+        plt.axis('off')
+
+        # save and get figure
+        plt.savefig('output_figure.png', bbox_inches='tight')
+        output_image = cv2.imread('output_figure.png')
+        return Image.fromarray(output_image)
+
+
+with gr.Blocks() as demo:
+
+    with gr.Row():
+        gr.Markdown("## Segment Anything (by Meta AI Research)")
+    with gr.Row():
+        gr.Markdown("The Segment Anything Model (SAM) produces high quality object masks from input prompts such as points or boxes, and it can be used to generate masks for all objects in an image. It has been trained on a dataset of 11 million images and 1.1 billion masks, and has strong zero-shot performance on a variety of segmentation tasks.")
+
+    with gr.Row():
+
+        with gr.Column():
+            image_input = gr.Image()
+            segment_image_button = gr.Button('Generate Mask')
+
+        with gr.Column():
+            image_output = gr.Image()
+
+    segment_image_button.click(segment_image, inputs=[image_input], outputs=image_output)
+
+    gr.Examples(
+        examples=[
+            ['./examples/dog.jpg'],
+            ['./examples/groceries.jpg'],
+            ['./examples/truck.jpg']
+
+        ],
+        inputs=[image_input],
+        outputs=[image_output],
+        fn=segment_image,
+        #cache_examples=True
+    )
+
+demo.launch()

requirements.txt

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+gradio
+opencv-python
+matplotlib
+numpy
+torch
+torchvision
+git+https://github.com/facebookresearch/segment-anything.git

sam_vit_b_01ec64.pth

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+version https://git-lfs.github.com/spec/v1
+oid sha256:ec2df62732614e57411cdcf32a23ffdf28910380d03139ee0f4fcbe91eb8c912
+size 375042383