Put a JPEG file in your Current Folder and use imread to load it into a matrix. Calculate and print the mean separately of the red, green, and blue components in the matrix

Ch13Ex10.m

im = imread('photo1.jpg');

[r c d] = size(im);

red = im(:,:,1);

green = im(:,:,2);

blue = im(:,:,3);

rmean = mean(mean(red));

gmean = mean(mean(green));

bmean = mean(mean(blue));

rstd = std(double(reshape(red,1,r*c)));

gstd = std(double(reshape(green,1,r*c)));

bstd = std(double(reshape(blue,1,r*c)));

fprintf('The mean of the red pixels is %.2f ',rmean) 

fprintf('with a standard deviation of %.2f\n',rstd)

fprintf('The mean of the green pixels is %.2f ',gmean) 

fprintf('with a standard deviation of %.2f\n',gstd)

fprintf('The mean of the blue pixels is %.2f ',bmean) 

fprintf('with a standard deviation of %.2f\n',bstd)