Update app.py

app.py

@@ -1,4 +1,4 @@
-# Attempt to import cv2 and install opencv-python-headless if not available
+# Attempt to import opencv-python-headless and install it if not available
 try:
     import cv2
 except ImportError:
@@ -6,18 +6,18 @@ except ImportError:
     subprocess.check_call(["pip", "install", "opencv-python-headless"])
     import cv2
 
-from PIL import Image
+from PIL import Image, ImageTk
 import numpy as np
 import gradio as gr
 import os
 
-# Function to convert image to sketch
+# Function to convert the image to a sketch
 def convert_to_sketch(img, blur_strength, brightness, contrast):
     # Convert PIL Image to numpy array
     img = np.array(img)
     
     # Convert the image to grayscale
-    img_gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
+    img_gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
     
     # Invert the grayscale image
     img_inverted = cv2.bitwise_not(img_gray)
@@ -37,7 +37,6 @@ def convert_to_sketch(img, blur_strength, brightness, contrast):
     # Adjust brightness and contrast
     sketch_with_bg = adjust_brightness_contrast(sketch_with_bg, brightness, contrast)
     
-    # Return the adjusted sketch image
     return sketch_with_bg
 
 # Function to adjust brightness and contrast
@@ -51,24 +50,24 @@ def sketch_interface(image, blur_strength, brightness, contrast):
     # Convert the input image to a sketch with adjustments
     sketch = convert_to_sketch(image, blur_strength, brightness, contrast)
     
-    # Convert numpy array to PIL Image before returning
+    # Ensure the output is a valid image (PIL Image)
     output_image = Image.fromarray(sketch)
     
-    # Return the processed sketch image for display
+    # Return the processed sketch image
     return output_image
 
 # Create Gradio interface
 interface = gr.Interface(
     fn=sketch_interface,
     inputs=[
-        gr.Image(type="pil", label="Upload Image", image_mode="RGB"),  # Support for various formats
+        gr.Image(type="pil", label="Upload Image"),
         gr.Slider(1, 51, step=2, label="Blur Strength", value=21),
         gr.Slider(-100, 100, label="Brightness", value=0),
         gr.Slider(1, 3, step=0.1, label="Contrast", value=1)
     ],
-    outputs=[gr.Image(type="pil", label="Sketch Output")],  # Output is now just the image
+    outputs=gr.Image(type="pil", label="Sketch Output"),
     title="Cartoon to Sketch Converter",
-    description="Upload an image (PNG, JPEG, or others) to convert it into a sketch. Adjust the blur strength, brightness, and contrast for different effects."
+    description="Upload an image to convert it into a sketch, adjust the blur strength, brightness, and contrast for different effects."
 )
 
 # Launch the Gradio app