Viewing out-of-gamut color use in an image

I'm contemplating a wide gamut display. I'm well aware of the various headaches that come along with one, especially in the Vista universe. To decide whether the benefits are worth it, I would like to see how many of my existing photographs (most shot with camera set to aRGB) actually have colors that are out of the sRGB space. I'm thinking something akin to those features that flash pixels in an image with blown out highlights in order to adjust exposure, etc.

What software would show me, for a photograph I've taken, whether any colors are present that are outside the sRGB range? If most of my shots tend to fit that profile, then I might leap into a wider gamut display.

Photoshop will do this. Open your aRGB image, keeping aRGB as your working color space, and then choose Proof Setup> Custom from the View menu to select the sRGB profile as your proofing profile. Then on the View menu, make sure "Proof Colors" and "Gamut Warning" are both selected. Any colors outside of the sRGB gamut will then be highlighted in the color selected in your Preferences menu choice for Gamut.

Also, when shooting raw, then in the Photoshop raw converter you can choose different color spaces and see the effect on the displayed histogram - if sRGB is too small to contain all the colors, you may see them piled up in a peak at either extreme end of the histogram. Some images may may have colors that don't even fit into the Adobe RGB color space. It's best to use 16 bits also, when converting from raw to a color space larger than sRGB, to better preserve color gradients.
-BrianZ

Bob Murching wrote:
...

Bob Murching said:

What software would show me, for a photograph I've taken, whether any
colors are present that are outside the sRGB range? If most of my
shots tend to fit that profile, then I might leap into a wider gamut
display.

Click to expand...

Below is an example of what one of my aRGB images looked like in photoshop with the gamut warning turned on and using sRGB profile for proofing to show colors that were outside sRGB, and then how it compares to proofing with my printer profile. I made this animated gif file to illustrate how working in aRGB with a wide gamut monitor allowed me to see more colors than sRGB, and that I could also print most of these colors.
-BrianZ