Fig. (9) IC1 images obtained after application of ICA on synthetic images containing uncorrelated Gaussian noise and generated utilizing different pre-normalization methods. Upper left shows IC1 image without any pre-normalization, upper middle the “nor1” and upper right the “whit” pre-normalization methods. Lower left shows IC1 image using the “pois” and lower middle the “mixp” pre-normalization methods. Lower right shows mean image.