Can u solve this error?

n=size(I);
M=n(1);
N=n(2);
MSE = sum(sum((I-II).^2.0))/(M*N);
PSNR = 10*log10(256*256/MSE);
fprintf('\nMSE: %7.2f', MSE);
fprintf('\nPSNR: %9.7f dB', PSNR);

Here i am calculating the PSNR and MSE of I and II but it gives error

Integers can only be combined with integers of the same class, or scalar doubles.

Error in ==> Spatial_thesis at 58
MSE = sum(sum((I-II).^2.0))/(M*N);

I have taken

I=uint8(X);
II = logical(I8)*128+logical(I7)*64+logical(I6)*32+logical(I5)*16+logical(I4)*8+logical(I3)*4+logical(I2)*2+logical(I1);

[mbonus]

type whos for each variable and compare the types

[Geoff Hayes]

Sanjeeb - how are I and II initialized?

Answer 1

[Image Analyst]

Use the built-in functions psnr() and immse(). Or else see my attached demo, or cast both I and II to double:

I = double(I);
II = double(II);