Add some randomization to further obscure text

src/screenmonitor.py

@@ -19,6 +19,28 @@ def capture_screenshot():
     # Apply blur
     blurred_screenshot = screenshot.filter(ImageFilter.GaussianBlur(10))
 
+    # Randomly turn 10% of the pixels black
+    pixels = blurred_screenshot.load()
+    width, height = blurred_screenshot.size
+    total_pixels = width * height
+    black_pixels_count = int(total_pixels * 0.1)
+    neighbor_copy_pixels_count = int(total_pixels * 0.01)
+
+    for _ in range(black_pixels_count):
+        x = random.randint(0, width - 1)
+        y = random.randint(0, height - 1)
+        pixels[x, y] = (0, 0, 0)
+
+    # Make 1% of the pixels copy themselves to their 8 neighbors
+    for _ in range(neighbor_copy_pixels_count):
+        x = random.randint(0, width - 1)
+        y = random.randint(0, height - 1)
+        original_color = pixels[x, y]
+        for dx in [-1, 0, 1]:
+            for dy in [-1, 0, 1]:
+                if 0 <= x + dx < width and 0 <= y + dy < height:
+                    pixels[x + dx, y + dy] = original_color
+
     # Compress and save
     timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
     filename = os.path.join(output_dir, f"screenshot_{timestamp}.jpeg")