create a checker board in matlab

To create a checkerboard pattern in Matlab, you can use the imshow function along with a logical matrix.

Here's an example code to generate a 8x8 checkerboard pattern:

main.m
% Create a logical matrix for the checkerboard pattern
boardSize = 8; % Change this value as per your requirements
checkerboard = repmat(logical(mod(1:boardSize,2).'), 1, boardSize/2);

% Display the checkerboard pattern using imshow function
imshow(checkerboard, 'InitialMagnification', 'fit')

% Adjust the color map to display the pattern in desired colors
colormap(gca, [0 0 0; 1 1 1]); % Black and white color map
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The mod function is used to generate the logical matrix with alternating values of 0 and 1. The repmat function is used to create a larger matrix by repeating the smaller matrix. Finally, the imshow function is used to display the checkerboard pattern, and the colormap function is used to set the colors of black and white.

You can modify the boardSize variable in the code to change the size of the checkerboard pattern as per your needs.

Please make sure that you have the MATLAB Image Processing Toolbox installed, as the imshow function is a part of it.