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import gradio as gr |
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import numpy as np |
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import tempfile |
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import shutil |
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import os |
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from zipfile import ZipFile |
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def sepia(input_img, num_copies): |
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sepia_filter = np.array([ |
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[0.393, 0.769, 0.189], |
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[0.349, 0.686, 0.168], |
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[0.272, 0.534, 0.131] |
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]) |
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input_img = input_img / 255.0 |
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sepia_img = np.dot(input_img[..., :3], sepia_filter.T) |
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sepia_img = np.clip(sepia_img, 0, 1) * 255 |
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sepia_imgs = [(sepia_img).astype(np.uint8) for _ in range(num_copies)] |
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return sepia_imgs |
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def zip_sepia_images(sepia_imgs): |
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temp_dir = tempfile.mkdtemp() |
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zip_path = os.path.join(temp_dir, "sepia_images.zip") |
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with ZipFile(zip_path, 'w') as zipf: |
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for i, img in enumerate(sepia_imgs): |
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img_path = os.path.join(temp_dir, f"sepia_image_{i}.png") |
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zipf.write(img_path, os.path.basename(img_path)) |
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return zip_path |
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with gr.Blocks() as demo: |
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with gr.Row(): |
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input_img = gr.Image() |
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num_copies = gr.Number(label="Number of Copies", value=1) |
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gallery = gr.Gallery(label="Sepia Images") |
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download_btn = gr.File(label="Download ZIP", visible=True) |
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input_img.change(fn=lambda x: x, inputs=input_img, outputs=gallery) |
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num_copies.change(fn=lambda x: x, inputs=num_copies, outputs=gallery) |
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generate_btn = gr.Button("Generate Sepia Images") |
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generate_btn.click(fn=sepia, inputs=[input_img, num_copies], outputs=gallery) |
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generate_btn.click(fn=zip_sepia_images, inputs=gallery, outputs=download_btn) |
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if __name__ == "__main__": |
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demo.launch() |
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