Hi,
You can achieve this task by using imread and imshow functions.
when you read the image using the imread function a uint8 array of the image is created.
so we then convert the read image into a double for applying the operations required and then convert it back to uint8 for using the imshow function.
I am providing the code for this task below. I am also attaching the output image.
im1=imread('1.jpg');
im2=imread('2.jpg'); %reading the images, replace the names with appropriate file names.
im3=imread('3.jpg');
im1=double(im1);
im2=double(im2); %converting into double.
im3=double(im3);
im=(((im1.*im1)+(im2.*im2)+(im3.*im3))/3).^0.5; %applying the formula.
im=uint8(im);
im1=uint8(im1);
im2=uint8(im2); %converting back to uint8.
im3=uint8(im3);
subplot(2,2,1)
imshow(im1)
title('first image');
subplot(2,2,2)
imshow(im2)
title('second image');
subplot(2,2,3)
imshow(im3)
title('third image'); %displaying the images.
subplot(2,2,4)
imshow(im)
title('image after formula');
Hope this clears your query.
Thanks,
Aditya.
