How to combine the multiple images to get the average single image?

Hello, I have several images. I want to combine them to create my own template. Please help me with the code.

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

for ....
 ....
 this_filename = ... construct an appropriate string
 TheImageArray = imread(this_filename);

   if file_index == 1
     image_totals = double(TheImageArray);
   elseif isequal( size(image_totals), size(TheImageArray) )
     image_totals = image_totals + TheImageArray;
   else
     error(sprintf('File "%s" is the wrong size', this_filename));
   end
  end
  average_image = image_totals / number_of_images;

[Poornima Gokhale]

Sorry Sir I didnt get you. In the link you had given they are processing separate files, but ours is the different images of the letter 'i'.

[Walter Roberson]

Then I do not understand your question. If you have different images of the same letter, you would normally write each of the images as a template.

Is the question about how to take a number of different images of the same letter and somehow construct a combined image that is "more representative" of how the letter should ideally look? Or is the question about how to create a mosaic image that shows all of the different images in a single image?

Answer 2

[Image Analyst]

See my demo for averaging images, attached.

[Poornima Gokhale]

Thank You sir. The code is working fine but when i try to save the average of the images it will just be saved as a black patch.

[Walter Roberson]

Try saving uint8() of the average image.

[Poornima Gokhale]

It's not working sir.

[Image Analyst]

The array is already cast to uint8() after the division of the sum to get the mean. I added an imwrite() and imread() after that and it worked fine. So you must have done something different than me but you forgot to attach your m-file with your modifications, so I don't know what you're doing.