How to save SURF feature value?

I have extracted feature from a single image using SURF feature extraction method. The extracted features are in matrix of 64 column and i have made a matrix to single value i.e adding matrix values. But my problem is, the particular single value which i have obtained by using sum function keeps altering every time when I run the code. Once if the value is 32.0676 next time when i run the same code it will be 29.0778 or something other value. I have attached the code for it and the image.

[chetna kaushal]

hy,

the extracted features are in a 64 column but value is different for each image. say 322*64, 593*64, 233*64. How did you come up to a single value? and how to feed them for testing in classification.

Answer 1

[KALYAN ACHARJYA]

Because in your code following random column vector generation is there, every time it generates different column vector, therefore "sumoffeatures" value changes

columnvector = rand(1,64)

[S.A]

Sir, how can I resolve this problem. Is there any solution for it

[KALYAN ACHARJYA]

Just fixed the column vector, add one following line-

rng(1);
columnvector = rand(1,64)

[S.A]

Thank you. It works