how can i differentiate between images

I have let suppose have 20 images in which 10 are standard image and 10 are reference images. I consider standard image are those images that don't have tumour (pixels of intensity 255)and reference that contains tumours so I read the directory as

sdirectory =('');
images = dir('*.jpg'); % as i have images of jpg format.

n_files = length(images);
for i = 1 : n_files;
    current_file = images(i).name;
    I{i} = imread(current_file ;
end

but I want to separate images if image has pixels of 255 intensity then name them reference image else consider them standard image .

I need help.

[Nitin]

it would be helpful if you could upload a picture of a standard image and that of a reference image.

[Filza Ashraf]

here in the image that have white balls is considered as reference image because the image have disk shapes that have 255 intensities and the other one is standard image

[Image Analyst]

I fixed your code's formatting but as thanks I'd like you to read this: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup. By the way, do you want to know some of the things wrong with your code?

Answer 1

[Nitin]

% test image

Img = zeros(20, 20);
Img(5:15,5:15)=1;

% Find if '255' intensity pixels exist in the image

temp = find(Img==255);

   if isempty(temp)
    display('No tumour');

   else 
    display('Tumour');

 end