Trouble importing file of image to run through function, then combining/exporting as a file

I am writing a function that takes an images and converts it to BW. I would like to make my function so that it takes in a file of images, runs through the function (making every image BW), and combines the new BW images into a new file. What should I do?

Here is my working BW function MidAirBW:

midAirImage = imread("MidAirTest.jpg");

midAirImage = rgb2gray(midAirImage);

bwImage = imbinarize(midAirImage,'adaptive','ForegroundPolarity','dark','Sensitivity',0.4);

imshow(bwImage);

This is what I tried for the file function:

D = 'Video2 gif stack';

S = dir(fullfile(D, 'name*.jpg'))

for k = 1:numel(S)

F = fullfile(D, S(k).name);

I = MidAirBW(F)

imwrite(I, 'BW edited images')

end

Answer 1

[Raunak Gupta]

Hi Ashley,

I assume by combining you means saving the images with distinct name into the same folder or different folder. You can probably rename the files with string like “_BW_edit” to every image name last part. Below code might help.

for k = 1:numel(S) 
    F = fullfile(D, S(k).name); 
    I = MidAirBW(F); 
    imwrite(I, strcat(F(1:end-4),'_BW_edit.jpg')); 
end