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Trebor
MAME Fan
Reged: 01/18/05
Posts: 509
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MESS YIQ
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?







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Subject Posted by Posted on
* MESS YIQ Trebor 11/16/12 08:31 PM
. * Re: MESS YIQ Trebor  11/19/12 10:42 PM

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