How to plot multiple 2D matrix data with different color on the same figure?

Hi,

I have multiple 200x100 data matrixes, and I want to plot them on the same figure with different color. It is similar as hold on with plot function except I want to display them similar as image. Normally I use imagesc to plot these matrixes data and hold on just doesn't work since the final imgae I get is the last data matrix.

The data output on the figure is similar as follwoing:

Thanks for helping me!

Answer 1

[KSSV]

I = rand(100,100,10) ;
[m,n,p] = size(I) ; 
[Y,Z] = meshgrid(1:n,1:n) ;
X = ones(m,n) ; 
figure
hold on
for i = 1:p
    surf(i*X,Y,Z,I(:,:,i))
end
shading interp
view(13,24)

[Yu Qin]

Thanks for replies. Let me clear my purpoese. As you can see from the figure that my plot with imagesc has multiple dots. This data is non-zero value. I want to plot another matrix value on the same image with different color of dots. For example, data1's dots color is yellow, and data2 is red. In this case, I can recoginize the differences of each dataset.

[KSSV]

You try out with the given code.....if it doesn't work, let me know.

[Yu Qin]

Thanks KSSV. The output of this code is not my expected results. Check the following painting.

I have two dataset, I want plot them on the same figure so I can recognize the shif from data1 to data2. The red dot would come from dataset 2. This is my expected results.

Answer 2

[yanqi liu]

clear all; close all; clc;
im1 = imread('cameraman.tif');
im2 = imread('rice.png');
figure; 
h1 = imagesc(im1);
set(h1, 'AlphaData', 0.8)
hold on;
h2 = imagesc(im2);
set(h2, 'AlphaData', 0.2)
axis equal;