Assignment #4, Q13

Octave command:

GB(:,:,1)=zeros(256);
GB(:,:,2)=[ones(256,1)*[0:1:255]/255];
GB(:,:,3)=[ones(256,1)*[255:1:0]/255]';
GB=rotdim(GB, 270);
imshow(GB)



The rotdim function allows you to rotate the image so that the orientation of the GB face of the colour cube is the same as it appears in the textbook.