chore: Fix file path case sensitivity issue in load_logo function

app.py

@@ -175,8 +175,7 @@ def create_video_from_title(title, sentences, background_image, output_filename,
 
      # Logo images
     top_logo = load_logo('G.png', frame_width, frame_height, 'top')
-    bottom_logo = load_logo('follow.png', frame_width, frame_height, 'bottom')
-
+    bottom_logo = load_logo('Follow.png', frame_width, frame_height, 'bottom')
     # Resize the background image
     background = resize_background_image(background_image, frame_width, frame_height)
 
@@ -318,20 +317,21 @@ def combine_audio_video(video_file, audio_file, output_file, audio_delay_seconds
     print("Successfully made the video:", output_file)
 
 def load_logo(logo_path, frame_width, frame_height, position='top'):
-    logo = cv2.imread(logo_path, cv2.IMREAD_UNCHANGED)  # Load with alpha channel
+    if not os.path.exists(logo_path):
+        raise FileNotFoundError(f"Logo file not found: {logo_path}")
+    
+    logo = cv2.imread(logo_path, cv2.IMREAD_UNCHANGED)
+    
+    if logo is None:
+        raise ValueError(f"Failed to load image at path: {logo_path}")
+    
     logo_height, logo_width = logo.shape[:2]
-
-    # Scaling down the logo if it's too big
     scale_factor = min(1, frame_width / 3 / logo_width, frame_height / 10 / logo_height)
-    new_size = (int(logo_width * scale_factor*1.3), int(logo_height * scale_factor*1.3))
+    new_size = (int(logo_width * scale_factor * 1.3), int(logo_height * scale_factor * 1.3))
     logo = cv2.resize(logo, new_size, interpolation=cv2.INTER_AREA)
 
-    # Positioning
     x_center = frame_width // 2 - logo.shape[1] // 2
-    if position == 'top':
-        y_pos = 100  # 10 pixels from the top
-    else:  # 'bottom'
-        y_pos = frame_height - logo.shape[0] - 100  # 10 pixels from the bottom
+    y_pos = 100 if position == 'top' else frame_height - logo.shape[0] - 100
 
     return logo, (x_center, y_pos)