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Create app.py
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app.py
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import streamlit as st
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from PIL import Image
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import torch
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import os
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import torchvision.transforms as T
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import detectron2
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from detectron2 import model_zoo
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from detectron2.config import get_cfg
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from detectron2.engine import DefaultPredictor
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from detectron2.utils.visualizer import Visualizer
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from detectron2.data import MetadataCatalog
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# Set up Detectron2 config
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cfg = get_cfg()
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#cfg.OUTPUT_DIR = './output'
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cfg.MODEL.DEVICE = 'cpu' # Use CPU for inference
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cfg.merge_from_file(model_zoo.get_config_file("COCO-InstanceSegmentation/mask_rcnn_R_50_FPN_3x.yaml"))
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cfg.MODEL.ROI_HEADS.SCORE_THRESH_TEST = 0.5 # Set threshold for segmentations
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cfg.MODEL.WEIGHTS = "model_final.pth"
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# Load Detectron2 model weights
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cfg.MODEL.WEIGHTS = model_zoo.get_checkpoint_url("COCO-InstanceSegmentation/mask_rcnn_R_50_FPN_3x.yaml")
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predictor = DefaultPredictor(cfg)
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# Streamlit app title
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st.title("Object Segmentation using Detectron2")
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# Upload image
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uploaded_image = st.file_uploader("Choose an image...", type=["jpg", "jpeg", "png"])
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# Perform segmentation and display result
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if uploaded_image is not None:
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# Load image
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image = Image.open(uploaded_image)
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# Perform segmentation
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outputs = predictor(image)
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# Visualize segmentation
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v = Visualizer(image, MetadataCatalog.get(cfg.DATASETS.TRAIN[0]), scale=1.2)
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segmented_image = v.draw_instance_predictions(outputs["instances"].to("cpu"))
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# Display original and segmented images
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st.image([image, segmented_image.get_image()], caption=["Original Image", "Segmented Image"], width=300)
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