How to recreate the american NTSC colour we saw in our old crt & vhs ?

[xbox360]

How to recreate the american NTSC colour we saw in our old crt & vhs ? I need to colour some videos. Any ideas ?

[Adub]

Uh, what? How about some examples of what exactly your are trying to achieve. Pictures and sample clips work best.

[Mug Funky]

TVout + DVD recorder? you could then patch the composite through a VHS recorder and loop through in RF to the DVD recorder - things will stay sharp, but you'll have "transmission" style noise and dropouts. you could even use a power drill near the cables or damage the shielding on your coax to get some interesting effects. total nostalgia.

[leeperry]

gamut conversion w/ ddcc/rgb3dlut/cr3dlut/madVR?

[ocal5]

Chroma phase change :

http://avisynth.org/mediawiki/Tweak, and change hue setting.

I'm quite sure that you speak about green-pink color skin ?

You have to live in UE to don't understand that ;-)

[leeperry]

Chroma phase change
well NTSC uses the SMPTE-C gamut, if the OP meant washy/screwed up PQ full of analog TV artifacts...then he'd need to rephrase ;)

[ocal5]

In order to be complete, sure we need to combine all theses sorts of things.

tweak(...)
rgb3dlut(...)

who is next ? :-)

If it's high definition, some "band" effect could be nice too...

Or simpler : shooting a good old CRT screen ;)

[xbox360]

Chroma phase change :

http://avisynth.org/mediawiki/Tweak, and change hue setting.

I'm quite sure that you speak about green-pink color skin ?

You have to live in UE to don't understand that ;-)

Any peticular settings ? some exampes maybe ? this is actually what im looking for.

http://sharing.myfoxla.com/sharewono//photo/2009/03/03/dpg_stock_national_business_20090206142938699_640_480_20090213153306487_640_480_20090303070357245_107_80.JPG http://media2.myfoxla.com//photo/2009/10/18/LAMW608-Kenneth-Howell_20091018052602_107_80.JPG http://media2.myfoxla.com//photo/2009/10/24/Mariette-Hartley_20091024_032950_tmb0002_20091024034628_320_240.JPG http://media2.myfoxla.com//photo/2009/10/09/ming-na_20091009111429_320_240.JPG http://media2.myfoxla.com//photo/2009/10/20/jane-jack_20091020134355_320_240.JPGhttp://media2.myfoxla.com//photo/2009/10/19/gerard-butler_20091019124134_320_240.JPG http://media2.myfoxla.com//photo/2009/10/19/suv-crash_20091019081647_320_240.JPG

[leeperry]

these look like oversaturated HDTV/REC709.

http://www.homecinema-fr.com/forum/download/file.php?id=54227

[LocalH]

What would be interesting to see would be a false NTSC filter (and also a variant for PAL too), where you feed in standard video (720x480 would be best for this but would technically work with any resolution), and the filter simulates the analog effects seen in composite video (chroma/luma crosstalk resulting in rainbows, chroma crawl, and moire effects). There have been some small efforts in the emulation scene to replicate a similar effect, but these efforts are generally tied to the system being emulated (since all retro computers and game consoles generated "not quite legal" composite video and as such have their own set of artifacts and problems).

In the same vein, I wouldn't mind seeing some of said emulation filters (of which exist for the NES/SNES PPU, Sega Master System/Genesis VDP and related systems such as the TI 99-4a or MSX, the Apple II, and the PC CGA composite output) turned into Avisynth filters. A few years back I had an idea of turning emulated tool-assisted speedruns into DVD video, and such filters would make the output look identical to the actual system (especially in the case of the NES, where there is no native RGB capability short of using a PPU taken from either a rare Famicom Titler or a few specific NES-based arcade games, and even then the colors were not the same as the native NTSC PPU).

If such a filter were made, would it be best to implement a notch filter within, or rely on the user applying their own horizontal blur to emulate it? I know that lack of a notch filter results in both a sharper image but also a larger number of artifacts, as I have experience with this on my Amiga 2000 and it's genlock, which allows the notch filter to be toggled. My recommendation would be to either include a notch filter but make it optional, or leave it completely out and require the user to blur the image themselves.

[shoopdabloop]

i agree, an emulation-style NTSC filter would be awesome.