Example :
This is the source picture
This is the result of the first filtering step:
(EXPSAT) The saturation curve is preamplified and exponentiated by 2, while the luminance is contrasted and exponentiated by 0.4
ExpSat (contr_l=.4,exp_l=.4, exp_s=2.5,pre_s=1.5)
This is the second filtering step:
(COLORIZE) The dark areas of image (exp_l=-2) are toned to magenta (blue +40 and red +40)
Colorize (exp_s=0,exp_l=-2, bf=40,rf=40)
This is the third filtering step:
(COLORIZE) The light areas of image (exp_l=+2) are toned to yellow (red +20 and green +20)
Colorize (exp_s=0,exp_l=2, gf=20,rf=20)
This is the last step:
(HLSNoise) A 10% noise is added to luminance
HLSNoise (noise_l=10)
Another transformation :
(Expsat hue selective filtering)
ExpSat(contr_l=.2,pre_l=.7,exp_l=.5,peak_l=0,
exp_s=3.5,pre_s=0,
hlow=50,hhi=270,hs=.1)
ExpSat(pre_s=1.5)
Colorize(exp_s=0,exp_l=-2,bf=10,rf=10,ga=1)
Colorize(exp_s=0,exp_l=2,rf=20,gf=20,ga=1)
HLSnoise(noise_s=20)