NTSC color space--images in gamut at DVinfo.net

Jeff Rhode · September 7th, 2006, 12:28 PM

Hi all,

We are making title slides and importing stills from Photoshop and I am trying to find info on the numbers for NTSC color space. We can use our info pallette for RGB or CMYK numbers. As an example 255 is white and 0 is 100% black. In the past I have been okay with using a white with about 5% black added and a black of about 90%, but if I can get the exact numbers where they move out of gamut that would be great.

All help is appreciated !

Jeff

Emre Safak · September 7th, 2006, 12:48 PM

Easy: just use the NTSC color space in Photoshop.

Jeff Rhode · September 8th, 2006, 04:30 AM

Thank you for the quick reply.

I did purposely throw colors out of gamut and then apply the filter, but saw no change in the info pallette numbers. Is there a special method to using the filter ?

Emre Safak · September 9th, 2006, 05:39 AM

You have to start working the color space when you create the document. Once your document's color space is set to NTSC, there is nothing you can do to exceed the NTSC gamut; oversaturated colors get clipped (pushed into line, if you will).

Jeff Rhode · September 9th, 2006, 05:50 AM

Thanks Emre--that clears it all up for me.

Jeff

September 7th, 2006, 12:28 PM	#1
Jeff Rhode Regular Crew Join Date: Jun 2006 Location: NJ, USA Posts: 169	NTSC color space--images in gamut Hi all, We are making title slides and importing stills from Photoshop and I am trying to find info on the numbers for NTSC color space. We can use our info pallette for RGB or CMYK numbers. As an example 255 is white and 0 is 100% black. In the past I have been okay with using a white with about 5% black added and a black of about 90%, but if I can get the exact numbers where they move out of gamut that would be great. All help is appreciated ! Jeff

September 7th, 2006, 12:48 PM	#2
Emre Safak Trustee Join Date: Feb 2004 Location: Brookline, MA Posts: 1,447	Easy: just use the NTSC color space in Photoshop.

September 8th, 2006, 04:30 AM	#3
Jeff Rhode Regular Crew Join Date: Jun 2006 Location: NJ, USA Posts: 169	Thank you for the quick reply. I did purposely throw colors out of gamut and then apply the filter, but saw no change in the info pallette numbers. Is there a special method to using the filter ?

September 9th, 2006, 05:39 AM	#4
Emre Safak Trustee Join Date: Feb 2004 Location: Brookline, MA Posts: 1,447	You have to start working the color space when you create the document. Once your document's color space is set to NTSC, there is nothing you can do to exceed the NTSC gamut; oversaturated colors get clipped (pushed into line, if you will).

September 9th, 2006, 05:50 AM	#5
Jeff Rhode Regular Crew Join Date: Jun 2006 Location: NJ, USA Posts: 169	Thanks Emre--that clears it all up for me. Jeff