Animation of image

Hello, I need some help. I have a project to create animation of an image mooving by some points of two arrays X and Y. This two arrays define some curve. I can put the background image and another one on top of it. But I can't think of a way to animate it. I tried every think I could think of but nothing is satisfactory ednouth. Can some one help me. If you require some code I could provide you. Thank you in advance!

Answer 1

[David Young]

Here's something simple that works - though it's not elegant or efficient:

% image data
bigIm = imread('street1.jpg');
smallysize = 50;
smallxsize = 70;
smallIm = bigIm(188:188+smallysize-1, 177:177+smallxsize-1, :);

% trajectory data
trajy = 400:-5:100;
trajx = trajy;

% animated display
for step = 1:length(trajx)
    displayIm = bigIm;
    displayIm(trajy(step):trajy(step)+smallysize-1, ...
        trajx(step):trajx(step)+smallxsize-1, :) = smallIm;
    imshow(displayIm);
    pause(0.2);
end

[subjoy sahu]

How to save this file. I am trying but it came as a figure..plzz help

[Image Analyst]

Call getimage() to extract the image out of the axes on the figure.

Answer 2

[Arnaud Miege]

Have a look at the Animation section of the MATLAB documentation.

HTH,

Arnaud

Answer 3

[Image Analyst]

This FAQ entry may be useful for you: http://matlab.wikia.com/wiki/FAQ#How_can_I_create_a_movie_from_my_MATLAB_figures.3F

Answer 4

[John]

Well, thank you. I have read this documents. But they are not what I need. I mean I can't make my object to move in the axis to create the animation and this is the problem.I have one image over a background image and I need to moove it by specific coordinates. This is what I can't do. I tried to put the top image in new axis and to move this new axis. Not any luck... Any ideas how I can move my top image over the background?

[Arnaud Miege]

Can you post your code?

[Jonas Reber]

yes - could you provide some code, then its much easier to help.