How to take Image as Input in a function

Im trying to make a function that takes a image of any type (png,jpeg etc) and then performs some task on them. But i cannot figure how to take the image as input in the function. Please help :)

Answer 1

[Cris LaPierre]

You'd have to first load the image into MATLAB and store it in a variable. You can then pass that variable as input to your function.

Try out this link on basic image import, processing and export.

Here's the link to a doc page on importing images.

[Talal Waseem]

figured it out thanks to you! Cheers

[YOGITAA YOGITAA]

how did you solve it? I have the same question.

[Ella]

I'm struggling with the same thing. I know my code works, because when I remove the function header and the code with a specific image inserted in the imread funciton the code works. It only stops working when I try to run it as a function. This is my function header.

function Organize(fn)

%code

end

How would I call the function with the image being the fn input?

[Ella]

I also made sure that the image is downloaded into the proper file

[Cris LaPierre]

Share the code you have written (including loading your image) that calls/uses your function.

Answer 2

[Image Analyst]

For example

grayImage = imread('moon.tif');
meanGL = mean2(grayImage)

meanGL = 52.9154

grayImage2 = DarkenImage(grayImage); % Call function
meanGL2 = mean2(grayImage2)

meanGL2 = 26.7118

%======================================================
% Define function that divides the image values by 2
function output = DarkenImage(inputImageArray)
output = inputImageArray / 2;
end

[Ella]

I managed to figure it out! Thank you for your help