How to access ardunio serial port using mathlab

How to develop this code to access arduino serial poart and how to read 1, 0 valuea from transmitter. and also how to reading values for receiver code for arduino ?

filename = 'image.jpg';

img = imread(filename);

bitstream = reshape((dec2bin(img(:), 8) - '0').', 1, []);

reconstructed = uint8( reshape(bin2dec(reshape(char(bitstream + '0'), 8, []).'), size(img)) );

imshow(img);

title('original');

imshow(reconstructed);

title('reconstructed');