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08/14/2005 02:28:03 AM · #1 |
Anybody have any good tips on how best to bring colors within gamut? I'm working on a picture for print and I have some work to do. I have toyed with selective channel desaturation (which works) or hue altering, but I'm afraid I'm degrading the whole picture.
Is there a method for compressing the range so the out-of-range pixels are brought within range without altering the rest as severely? And more importantly, can it be done without pixelation?
Help would be great. |
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08/14/2005 02:33:49 AM · #2 |
| For what kind of print? A photo printer (e.g., Fuji Frontier), inkjets, and offset presses all have markedly different gamuts. |
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08/14/2005 02:51:01 AM · #3 |
| The company I use uses a HP Designjet 5000 which is a six-color inkjet. The owner told me that the standard gamut warning on Photoshot is pretty close to the gamut of their printer. |
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08/14/2005 04:20:03 AM · #4 |
The hardest colors to reproduce are deep pure reds and blues. If you don't have too many of those colors, you should be OK.
Probably the "correct" answer would be to get the printer profile from HP and load it into Photoshop; you should then be seeing on-screen the best representation possible of what the printer's output will look like. But don't ask me exactly how to do it -- I don't really use any color management system myself.
If you have time, your should prepare and print a test image which has all the colors you're likely to use.
Message edited by author 2005-08-14 04:21:08. |
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08/14/2005 09:10:22 AM · #5 |
Use the correct colour profiles for your camera & monitor as a start. (assuming you are doing all this)
With the gamut warning on, you can see which areas are your problem areas - use the colour range selection tools to target just those, and then as you said work on either shifting the hue (small changes can have big impact on the gamut) or desaturating the colours.
Trick is to work on as small a range as you can get away with - you can broaden/feather the selected colours to make sure you don't make a really obvious change.
It takes a bit of work but you can usually get a final print very close to the original but all back in gamut for the print device. |
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