how to add labels in an image

Hello

I want to add labels that represents the color blue is water the color green is the tree and the color red is rock

here is the code as well as the attached images "

And thank you in advance

imgs(2) = load('C1fig.mat');

imgs(1) = load('C2fig.mat');

imgs(3) = load('C3fig.mat');

img = cat(3, imgs.ans);

imshow(img)

[Walter Roberson]

labels ? As in a legend? Or every area of a given type should have a text label drawn on the area if it is large enough and a label with an arrow pointing to the location if the area is not large enough to contain the label ?

[dakhli mohamed]

just a legend at the top left that indicates the color and its corespandances

Answer 1

[Walter Roberson]

hh(1) = line(nan, nan, 'color', 'b')

same for the other two colors into hh 2 and hh 3

legend(hh,{'water','tree','rock'})