Based on the histogram, {HEAD ~ color coefficients} of {TAIL ~ red, green and blue channels} are assigned to each image so that the final combination of colors will produce a semi natural appearing composite image 
of
Based on the histogram , { HEAD ~ color coefficients } of { TAIL ~ red , green and blue channels } are assigned to each image so that the final combination of colors will produce a semi natural appearing composite image
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH