MATLAB-ImageProcessing-Lab-01

MATLAB Image Processing and 2D Function Plotting

Author: Rahul Patel
Roll No: UI22EC58
Repository Name: MATLAB-ImageProcessing-Lab-01

Project Description

This project is divided into three tasks:

1. Task 1: Perform operations on an RGB color image to convert it to grayscale, indexed, and binary images.
2. Task 2: Generate black, white, and black-in-white/white-in-black images from a sample image.
3. Task 3: Plot a 2D function of the form f(x, y) = a * sin(u(x) * x + v(y) * y).

The code demonstrates basic image processing techniques and 2D plotting in MATLAB.

Task 1: RGB Image Conversion

• Original Image
  This is the original color image (peppers.png) used in the image processing operations.

  

• Gray Image (Built-in Function)
  The color image was converted to grayscale using the rgb2gray MATLAB function.

  

• Gray Image (Average Method)
  Grayscale conversion using the average of the R, G, and B channel values.

• Gray Image (Weighted Method)
  Grayscale conversion using the weighted sum of R, G, and B channels (0.3, 0.59, 0.11 respectively).

• RGB to Indexed Image
  The RGB image was converted to an indexed image with 16 colors.

  

• Binary Image (Built-in Function)
  Conversion of the grayscale image to a binary image using MATLAB’s im2bw function.

  

• Binary Image (Manual Threshold)
  Manual conversion to binary using a threshold value of 128.

  

Task 2: Image Manipulations

• Black Image
  A black image generated using zeros in MATLAB.

• White Image
  A white image generated using ones in MATLAB.

  

• Black-in-White Image
  An image where black pixels are set within a white background.

  

• White-in-Black Image
  An image where white pixels are set within a black background.

  

Task 3: 2D Function Plotting

This task involved plotting a 2D function of the form f(x, y) = a * sin(u(x) * x + v(y) * y).

• 2D Function Plot
  A random 2D sine wave was plotted based on the equation mentioned above.

  

How to Run the Code

To run this code:

1. Download or clone this repository.
2. Open MATLAB and navigate to the folder where the code is located.
3. Run the lab_01.m script in MATLAB.

Conclusion

This project demonstrates basic image processing operations and 2D function plotting using MATLAB. The outputs include grayscale, binary, indexed images, and visual manipulations of chessboard-like images, along with a plotted sine wave in 2D space.

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Repository: MATLAB-ImageProcessing-Lab-01