How to plot intensity profile of a 3D image

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Greetings to all !
I have a 3D image matrix which is sheep logan phantom. And I want to plot the intensity profile of the along Vertical direction and horizontal direction separately? But I am confused how to do it ! Can anyone help me ?
Thanks in ADVANCE!
Amit Chakraborty
Amit Chakraborty on 8 Jul 2022
I try to say intensity plot instead of profile. Yes you are correct I want the intensity plot along a certain line (to get a 1-D profile). Like the following picture.

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Accepted Answer

Image Analyst
Image Analyst on 9 Jul 2022
You can do
rgbImage = imread('peppers.png');
subplot(2, 1, 1);
axis('on', 'image')
xline(205, 'Color', 'r', 'LineWidth', 2);
column205 = rgbImage(:, 205,:);
subplot(2, 1, 2);
plot(column205(:, 1), 'r-', 'LineWidth', 2);
hold on;
plot(column205(:, 2), 'g-', 'LineWidth', 2);
plot(column205(:, 3), 'b-', 'LineWidth', 2);
grid on;
legend('Red', 'Green', 'Blue');

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