Finding the Edges

AIM

For a color image, convert RGB to Grayscale and find the edges using the following operators:

1. Prewitt Operators.
2. Sobel Operators.
3. Use of a smoothing filter (averaging filter) with the Sobel operator.

---

Features

This MATLAB script performs the following tasks:

• Converts a color image to grayscale.
• Detects edges using Prewitt and Sobel operators.
• Applies a smoothing filter before Sobel edge detection.
• Allows users to upload an image interactively for processing.

---

How to Use

1. Clone or download this repository to your local system.
2. Ensure MATLAB (R2020b or later) and the Image Processing Toolbox are installed.
3. Run the script edge_detection.m in MATLAB.
4. When prompted, select an image file to process (supported formats: .jpg, .png, .bmp).

---

Prerequisites

• MATLAB R2020b or later.
• Image Processing Toolbox.

---

Instructions

1. Save the file as edge_detection.m.
2. Run the script in MATLAB.
3. Follow the prompts to upload an image for edge detection.

---

Example Results

Grayscale Image

Prewitt Edge Detection

Sobel Edge Detection

Smoothed Sobel Edge Detection

---

Author

Rahul Patel
Electronics and Communication Engineering Student
Date: January 19, 2025

---