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dbterrana
7th of July 2001 (Sat), 20:02
Out of gamut Problem

I have a favorite image of an orchid, which has a significant out of gamut content:
http://www.fototime.com/CBC40F58A352025/standard.jpg

The only way I have been able to correct the problem was by converting to index color which prints better than the 24 bit out of gamut color, but is still very poor compared to the monitor image. It seems that some purple colors fall out of the gamut range.


Is there a better way to replace the out of gamut colors rather than simply converting to index, or 256 colors?
I have tried everything that is available in Photoshop5.1 to no avail.
Adjusting the color balance, saturation, levels etc. has no effect on changing any of the out of gamut colors back to a printable color.

I thought there must be a better way of dealing with gamut problems than what I have tried. Any suggestions will be appreciated.
Don T

Rachel
4th of July 2002 (Thu), 20:03
Eeek, do not ever index your photos! JPG's can support 16 million colors, why would you limit yourself to 256?

In Photoshop, a better way to correct out of gamut colors is to go to View>Gamut Warning. All colors that are out of gamut will show up as grey. Move your pointer over the out of gamut colors.. In the Info palette, an exclamation point appears next to the CMYK values whenever you move the pointer over an out-of-gamut color.

In both the color picker and the Color palette, an alert triangle appears and the closest CMYK equivalent is displayed whenever you select an out-of-gamut color. To select the CMYK equivalent, click the triangle or the color patch.

If you convert the image to CMYK mode, Photoshop automatically brings all your colors into gamut. But it is better to identify them while in RGB mode and try to correct them yourself first before converting into CMYK.

throughlens
27th of January 2010 (Wed), 15:24
Like Rachel said, you don't need to index your photos. Why do you want to do that?

Look at this white orchid photo that I took that's has all the colors right and correct white balance.

It's a
night shoot of a white orchid stigmahttp://digitalart.id3as.com/d/2691-2/wIMG_8528.JPG (http://digitalart.id3as.com/v/macro/flowers/wIMG_8528.JPG.html)

stsva
27th of January 2010 (Wed), 15:50
Another thread revived from the dead. ;)

Doesn't take the record, though: http://photography-on-the.net/forum/showthread.php?t=39

tzalman
28th of January 2010 (Thu), 09:10
But this one was revived twice. There was a whole year between the OP and the first and only (until now) answer. That's gotta qualify as some kind of record.

stsva
28th of January 2010 (Thu), 09:11
But this one was revived twice. There was a whole year between the OP and the first and only (until now) answer. That's gotta qualify as some kind of record.

Good point!