|
MESS YIQ
#299138 - 11/16/12 08:31 PM
|
|
|
Enable YIQ is simple enough:
yiq_enable 0 -- > 1
Fixing/correcting the colors back to base (As when YIQ was disabled), was relatively simple to find:
yiq_o 0.0 --> 1.0
Now I want to adjust the tint/hue like a typical NTSC television would adjust. Changing all colors in the palette to either more red or more green.
I know of the RGB adjustments like offset, scale, power, floor...That is not what I am looking for. Those impact the palette differently than a hue/tint adjustment.
Here are the NTSC Processing Parameters:
yiq_cc 3.59754545
yiq_a 0.5
yiq_b 0.5
yiq_o 1.0
yiq_p 1.0
yiq_n 1.0
yiq_y 6.0
yiq_i 1.2
yiq_q 0.6
yiq_scan_time 52.6
yiq_phase_count 2
Which of the above performs a hue/tint adjustment as found on NTSC televisions and what is the range for that (those) setting?
|
|
|
|
Re: MESS YIQ
[Re: Trebor]
#299437 - 11/19/12 10:42 PM
|
|
|
Should have read the hlsl.txt document more closely:
"red_ratio [r,g,b] These parameters define a 3x3 matrix which is multiplied
grn_ratio [r,g,b] by the incoming RGB signal. This can be used for any
blu_ratio [r,g,b] standard matrix convolution, including H/S/V or simply
affecting the TV-style tint."
|
|
|
|
Index 
Threaded 
MESS YIQ
Reply
[Re: 