Error-Double inputs must have integer values in the range of ASSUMEDTYPE. Question asks me to create a union of a constant image and skeleton image.

function [w]=IM_negative(y)

y=imread('ImgSkeleton.jpg');

q=ones(317,167,3)*0.5;

disp(q);

figure(4)

imshow(q);

figure(1)

imshow(y);

yb=imcomplement(y);

figure(2)

imshow(yb);

f=double(q);

g=double(y)

yc=bitand(f,g);

figure(3)

imshow(yc)