Saving muliple images in matlab

How to save multiple images in matlab.

Input is taken as 1 image

then, this image is processed with different factors and then i need to save all the processed image and then need to call these images as required?

Answer 1

[Image Analyst]

To create a filename with factors embedded in it, use sprintf().

To write the image, use imwrite()

To recall the images, use imread() and imshow().

To do it multiple times, use a for loop.

[Mayur Deogade]

How to use the sprintf() for storing different images

[Image Analyst]

See the FAQ for how to use sprintf() The FAQ

Basically it's something like this:

baseFileName = sprintf('My Image Prefix %d_%.1f.png', intFactor1, dblFactor2);
fullFileName = fullfile(folder, baseFileName);

So you just use %d, %f, or %s depending on whether your factor is an integer, floating point number, or a string/character array, respectively. And you can have whatever prefix letters before those, and whatever file extension you want. For another example:

folder = 'D:\whatever\images'
numImages = 20;
intFactor1 = sort(randi(9000, 1, numImages));
dblFactor2 = rand(1, numImages);
for k = 1 : numImages
	str = datestr(now); % Current date stamp
	baseFileName = sprintf('Image_%4.4d_%4.4d_%.1f %s.png', k, intFactor1(k), dblFactor2(k), str(1:11));
	fullFileName = fullfile(folder, baseFileName);
	fprintf('Now writing %s to disk.\n', fullFileName);
% 	imwrite(yourImage, fullFileName);
end

You'll get

Now writing D:\whatever\images\Image_0001_0006_0.5 06-Sep-2020.png to disk.

Now writing D:\whatever\images\Image_0002_0079_0.8 06-Sep-2020.png to disk.

Now writing D:\whatever\images\Image_0003_0676_0.4 06-Sep-2020.png to disk.

Now writing D:\whatever\images\Image_0004_1527_0.3 06-Sep-2020.png to disk.

etc.

[Mayur Deogade]

Thanks for your help