How can I found the distance SSD (Sum of Squared Differences) between two images ?

Hello!

I am having two images I and J. How can found distance between this two images with using SSd?

Please help!

Answer 1

[Thorsten]

 X = I1 - I2;
 ssd = sum(X(:).^2);

[fadwa chebil]

Thank you a lot :)

[Image Analyst]

If I1 and I2 are uint numbers, you'll have to cast to double to avoid clipping:

X = double(I1) + double(I2);

Answer 2

[Image Analyst]

Try immse():

ssd = immse(image1, image2) * numel(image1);

Answer 3

[Somayeh Norouzi Ghazbi]

You can also use the following code:

SSD=sum(sum(image1-image2).^2)

[Walter Roberson]

That would not work for RGB images, and would not work properly for images stored in any of the integer classes such as uint8.