Update app.py

app.py

@@ -1,46 +1,45 @@
-import gradio as gr
+mport gradio as gr
 import numpy as np
-from PIL import Image
-import io
+import tempfile
+import shutil
+import os
 from zipfile import ZipFile
 
-def sepia_and_zip(input_img, num_copies):
-    # Convert input_img from Image format to NumPy array
-    input_img_np = np.array(input_img)
-
-    # Define the sepia filter
+def sepia(input_img, num_copies):
     sepia_filter = np.array([
-        [0.393, 0.769, 0.189],
-        [0.349, 0.686, 0.168],
+        [0.393, 0.769, 0.189], 
+        [0.349, 0.686, 0.168], 
         [0.272, 0.534, 0.131]
     ])
+    input_img = input_img / 255.0
+    sepia_img = np.dot(input_img[..., :3], sepia_filter.T)
+    sepia_img = np.clip(sepia_img, 0, 1) * 255
+    sepia_imgs = [(sepia_img).astype(np.uint8) for _ in range(num_copies)]
+    return sepia_imgs
 
-    # Apply sepia filter
-    input_img_np = input_img_np / 255.0
-    sepia_img_np = np.dot(input_img_np[..., :3], sepia_filter.T)
-    sepia_img_np = np.clip(sepia_img_np, 0, 1) * 255
-    sepia_imgs = [(sepia_img_np).astype(np.uint8) for _ in range(num_copies)]
-    
-    # Convert NumPy images back to PIL images for output
-    pil_images = [Image.fromarray(img) for img in sepia_imgs]
-    
-    # Prepare the ZIP file in-memory
-    zip_bytes_io = io.BytesIO()
-    with ZipFile(zip_bytes_io, 'w') as zip_file:
-        for i, img in enumerate(pil_images):
-            img_byte_arr = io.BytesIO()
-            img.save(img_byte_arr, format='PNG')
-            img_byte_arr.seek(0)
-            zip_file.writestr(f"sepia_image_{i}.png", img_byte_arr.read())
-    zip_bytes_io.seek(0)
+def zip_sepia_images(sepia_imgs):
+    temp_dir = tempfile.mkdtemp()
+    zip_path = os.path.join(temp_dir, "sepia_images.zip")
+    with ZipFile(zip_path, 'w') as zipf:
+        for i, img in enumerate(sepia_imgs):
+            img_path = os.path.join(temp_dir, f"sepia_image_{i}.png")
+            gr.utils.save_image(img_path, img)
+            zipf.write(img_path, os.path.basename(img_path))
+    return zip_path
 
-    # Return values: Gallery images and the ZIP file as a tuple (BytesIO, filename)
-    return pil_images, ("sepia_images.zip", zip_bytes_io)
-
-iface = gr.Interface(fn=sepia_and_zip,
-                     inputs=[gr.Image(label="Input Image"), gr.Number(label="Number of Copies", default=1)],
-                     outputs=[gr.Gallery(label="Sepia Images"), gr.File(label="Download ZIP")],
-                     title="Sepia Tone Generator with Downloadable ZIP",
-                     description="Upload an image and select the number of sepia-toned copies you want. View the images in a gallery and download them all as a ZIP file.")
+with gr.Blocks() as demo:
+    with gr.Row():
+        input_img = gr.Image()
+        num_copies = gr.Number(label="Number of Copies", value=1)
+        gallery = gr.Gallery(label="Sepia Images")
+        download_btn = gr.File(label="Download ZIP", visible=False)
+        
+    input_img.change(fn=lambda x: x, inputs=input_img, outputs=gallery)
+    num_copies.change(fn=lambda x: x, inputs=num_copies, outputs=gallery)
+    
+    generate_btn = gr.Button("Generate Sepia Images")
+    generate_btn.click(fn=sepia, inputs=[input_img, num_copies], outputs=gallery)
+    generate_btn.click(fn=zip_sepia_images, inputs=gallery, outputs=download_btn)
 
-iface.launch(debug=True)
+if __name__ == "__main__":
+    demo.launch()