Update README.md

README.md

@@ -38,11 +38,11 @@ The bounding boxes follow these conventions:
 
 ### Coordinate Conversion
 To convert the normalized `bbox` to pixel values for a 512x512 image:
+
 ```Python
-Pixel_x = x * 512
-Pixel_y = y * 512
-Pixel_w = w * 512
-Pixel_h = h * 512
+# Convert normalized [x, y, w, h] to 512x512 pixel coordinates
+px_x, px_y = bbox[0] * 512, bbox[1] * 512
+px_w, px_h = bbox[2] * 512, bbox[3] * 512
 ```
 ---