Kaya Instruments IRON SDI, User Manual

Page: 29 / 49

2 0 H a M e s i l a S t . , N e s h e r 3 6 8 8 5 2 0 , I s r a e l
P O B 2 5 0 0 4 , H a i f a 3 1 2 5 0 0 1 , I s r a e l
T e l : ( + 9 7 2 ) - 7 2 - 2 7 2 3 5 0 0 F a x : ( + 9 7 2 ) - 7 2 - 2 7 2 3 5 1 1
www.kayainstruments.com Page no. 29 | Appendix No. 1
8.8.7 post_cont <factor>
Sets post processing contrast.
Y_out = Y * factor / 128
Neutral value is 128.
Value Reset Minimal Maximal
factor
128 0 255
Example:
// Set a contrast value of 1.23 => input value should be 157 = round (1.23 * 128.0)
post_cont 157
8.8.8 post_sat <factor>
Sets post processing color saturation.
Cb,r_out = Cb,r * factor / 128
Neutral value is 128.
Value Reset Minimal Maximal
factor
128 0 255
Example:
// Set a saturation value of 1.23 => input value should be 157 = round (1.23 * 128.0)
post_sat 157
8.8.9 post_hue <offset>
Sets post processing color hue offset angle.
Cb’ = Cb * cos (offset * 90 / 128) + Cr * sin (offset * 90 / 128)
Cr’ = -Cb * sin (offset * 90 / 128) + Cr * cos (offset * 90 / 128)
Neutral value is 0.
Value Reset Minimal Maximal
value
0 -128 (-90 degree) 127 (+89 degree)
Example:
// Set a hue value of 12.3 => input value should be 17 = round (12.3 * 128.0 / 90.0)
post_hue 17