The "padarray" function can be utilized to pad the image array such that the white border of the picture is enlarged.
% Read the image
img = imread('defaultImage.png');
% Define the padding size for padding on the left side
leftPadding = 30;
% Define the padding color (white)
paddingColor = 255;
% Setting the direction of padding as "pre" to add horizontal padding to the left side
paddedImg = padarray(img, [0, leftPadding], paddingColor, 'pre');
% Optionally, save the padded image
imwrite(paddedImg, 'paddedImage.jpg');
% Displaying the original and padded images
figure;
subplot(1, 2, 1);
imshow(img);
title('Original Image');
subplot(1, 2, 2);
imshow(paddedImg);
title('Image with Enlarged White Border');
For more information regarding the "padarray" function, refer to this documentation: https://www.mathworks.com/help/images/ref/padarray.html
