Taking a Screenshot (Screen Capture) using MATLAB Code
How you take a screenshot of your computer's screen till now?
With the "Print Screen" key and then pasting the shot in Paint or Other software?
Well, that's an old way now! You can use your MATLAB code to take a screenshot of the current screen.
How?
Using the Java's Robot Class function which can be imported in MATLAB.
Here is the MATLAB code for doing a Screen Capture (Comments Bolded).....
clc
clear
close all
import java.awt.Robot;
vks = Robot; %Creating a Robot object
import java.awt.Rectangle;
rect = Rectangle; %Creating a Rectangle object
import java.awt.Toolkit.getDefaultToolkit;
tool = getDefaultToolkit; %Creating a Toolkit object
screenDim = tool.getScreenSize; %Getting the screen size
width = screenDim.width; %Width of screen
height = screenDim.height; %Height of screen
rect.setRect(0, 0, width, height); %Setting the size of screen capture
screen = vks.createScreenCapture(rect); %capturing the screen
pixelsData = reshape(typecast(screen.getData.getDataStorage, 'uint8'), 4, width, height);
%Converting to 8 Bit data
imgData = zeros([height,width,3],'uint8'); %Create the image variable
imgData(:,:,1) = transpose(reshape(pixelsData(3, :, :), width, height));
imgData(:,:,2) = transpose(reshape(pixelsData(2, :, :), width, height));
imgData(:,:,3) = transpose(reshape(pixelsData(1, :, :), width, height));
%Save image data B-G-R Plane wise
imshow(imgData) %Show the captured screenshot
imwrite(imgData, 'ScreenCaptureMatlab.jpg'); %Save the captured screenshot
%End of code
Further, you can control the size of the screenshot with a slide modification in the above code! You can also introduce a finite delay between the start of the code and the screen capture step so that you can minimize MATLAB and open the window/screen of your choice.
Have you got a great idea with this code or the Java Robot class in MATLAB? You can share in the comments!
Author: Vibhutesh Kumar Singh
With the "Print Screen" key and then pasting the shot in Paint or Other software?
Well, that's an old way now! You can use your MATLAB code to take a screenshot of the current screen.
How?
Using the Java's Robot Class function which can be imported in MATLAB.
 |
| MATLAB with a figure window showing the screenshot of the current screen |
Here is the MATLAB code for doing a Screen Capture (Comments Bolded).....
clc
clear
close all
import java.awt.Robot;
vks = Robot; %Creating a Robot object
import java.awt.Rectangle;
rect = Rectangle; %Creating a Rectangle object
import java.awt.Toolkit.getDefaultToolkit;
tool = getDefaultToolkit; %Creating a Toolkit object
screenDim = tool.getScreenSize; %Getting the screen size
width = screenDim.width; %Width of screen
height = screenDim.height; %Height of screen
rect.setRect(0, 0, width, height); %Setting the size of screen capture
screen = vks.createScreenCapture(rect); %capturing the screen
pixelsData = reshape(typecast(screen.getData.getDataStorage, 'uint8'), 4, width, height);
%Converting to 8 Bit data
imgData = zeros([height,width,3],'uint8'); %Create the image variable
imgData(:,:,1) = transpose(reshape(pixelsData(3, :, :), width, height));
imgData(:,:,2) = transpose(reshape(pixelsData(2, :, :), width, height));
imgData(:,:,3) = transpose(reshape(pixelsData(1, :, :), width, height));
%Save image data B-G-R Plane wise
imshow(imgData) %Show the captured screenshot
imwrite(imgData, 'ScreenCaptureMatlab.jpg'); %Save the captured screenshot
%End of code
Further, you can control the size of the screenshot with a slide modification in the above code! You can also introduce a finite delay between the start of the code and the screen capture step so that you can minimize MATLAB and open the window/screen of your choice.
Have you got a great idea with this code or the Java Robot class in MATLAB? You can share in the comments!
Author: Vibhutesh Kumar Singh
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