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Delete demo.py
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demo.py
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import torch
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from models import vgg19
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import gdown
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from PIL import Image
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from torchvision import transforms
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import gradio as gr
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import cv2
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import numpy as np
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import scipy
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model_path = "pretrained_models/model_qnrf.pth"
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url = "https://drive.google.com/uc?id=1nnIHPaV9RGqK8JHL645zmRvkNrahD9ru"
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gdown.download(url, model_path, quiet=False)
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device = torch.device('cpu') # device can be "cpu" or "gpu"
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model = vgg19()
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model.to(device)
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model.load_state_dict(torch.load(model_path, device))
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model.eval()
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def predict(inp):
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inp = Image.fromarray(inp.astype('uint8'), 'RGB')
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inp = transforms.ToTensor()(inp).unsqueeze(0)
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inp = inp.to(device)
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with torch.set_grad_enabled(False):
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outputs, _ = model(inp)
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count = torch.sum(outputs).item()
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vis_img = outputs[0, 0].cpu().numpy()
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# normalize density map values from 0 to 1, then map it to 0-255.
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vis_img = (vis_img - vis_img.min()) / (vis_img.max() - vis_img.min() + 1e-5)
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vis_img = (vis_img * 255).astype(np.uint8)
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vis_img = cv2.applyColorMap(vis_img, cv2.COLORMAP_JET)
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vis_img = cv2.cvtColor(vis_img, cv2.COLOR_BGR2RGB)
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return vis_img, int(count)
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inputs = gr.Image(label="Image of Crowd")
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outputs = [
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gr.Image(label="Predicted Density Map"),
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gr.Label(label="Predicted Count")
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]
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# Assuming `title`, `desc`, and `examples` variables are defined elsewhere in your code.
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title = "Your App Title"
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desc = "Your App Description"
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gr.Interface(fn=predict,
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inputs=inputs,
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outputs=outputs,
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title=title,
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description=desc,
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allow_flagging="never").launch(share=True)
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