I am a newbie in image processing projects and currently I am focusing on MATLAB based face detection, recognition and tracking. Here, I will write about my projects.

    Face Detection using MATLAB

    A simple MATLAB script can detect faces successfully from an image file. Here we will detect the faces and mark the detected faces in a box. We have to keep the image and the MATLAB program file in the same folder.

    The steps are given below.

    Step 1: Read the image using imread function
    Image = imread(‘friends.jpg’);

    Step 2: Implement an algorithm which will detect the faces out of an image
    detectFace = vision.CascadeObjectDetector();

    Step 3: Use the algorithm on our image file and get the geometric details of the image (Number of faces, Coordinates and Size)
    Box = step(detectFace, Image);

    Step 4: Mark the faces on the image
    B = insertObjectAnnotation(Image, ‘rectangle’, Box, ‘Face’);
    imshow(B), title(‘Detected Faces’);

    Step 5: Display the number of faces in a string
    n = size(Box,1);
    str_n = num2str(n);
    str = strcat(‘Number of detected faces are = ‘, str_n);
    disp(str);