Procedure

1. Load image and convert to grayscale.
2. Apply Sobel filters in x and y directions.
3. Compute gradient magnitude.
4. Apply Prewitt operator using custom kernels.
5. Apply Laplacian operator.
6. Apply Canny edge detection.
7. Display and compare outputs.

Feedback

• Which operator gave the best edges?
• Was Canny threshold tuning clear?