def METHOD_NAME(b1R, b3R, b4T, b5T, b6T, b9T):
    # red = band5 - band6; rescale -35K to 5K to 0 to 255
    # grn = band4 - band9; rescale -5K to 75K to 0 to 255; gamma .33
    # blu = band3 - band1; rescale -75% to 25% to 0 to 255 (units reflectance)
    red = rescale(b5T-b6T, -35, 5, 0, 255)
    grn = 255*(rescale(b4T-b9T, -5, 75, 0, 1)**3.0303)
    blu = rescale(b3R-b1R, -75, 25, 0, 255)
    return combineRGB(red, grn, blu)