hello problem with homogeneity and energy of images ?

hi when i compute homogeneity and energy of images the result is very small 1.9^-20 can you help me to normalize these small values ??? i want to normalize 'statistvector' element any help pleas !!??? this is the code i used

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im=imread('a.jpg');

grayim=rgb2gray(im);

%Contrast AND Correlation AND Energy AND Homogeneity

struct=graycoprops(double(grayim));

Contrast1=struct.Contrast;

Correlation1=struct.Contrast;

Energy1=struct.Energy;

Homogeneity1=struct.Homogeneity;

statistvector=[Homogeneity1,Energy1,Correlation1,Contrast1];