如何通过Matlab计算图像中每个RGB颜色通道的强度百分比？

image = imread('image.jpg');

[R, G, B] = imsplit(image);

totalPixels = numel(image);
R_percentage = sum(R(:))/totalPixels * 100;
G_percentage = sum(G(:))/totalPixels * 100;
B_percentage = sum(B(:))/totalPixels * 100;

disp(['Red channel percentage: ', num2str(R_percentage)]);
disp(['Green channel percentage: ', num2str(G_percentage)]);
disp(['Blue channel percentage: ', num2str(B_percentage)]);