6 votes

Can a 65% RGB laptop display 100% RGB on an external monitor?

If you ask this because you want to do photo retouching work on the gaming laptop, the answer is yes. The color space of sRGB or Adobe RGB is coded into the file. The rendering device (display, ...
Kai Mattern's user avatar
  • 4,271
6 votes
Accepted

How do I calculate the coordinates for secondary colors on a CIE chromacity diagram?

Performing the operation directly using the chromaticity coordinates (ie: taking the midpoint between the two chromaticity coordinates) will yield incorrect results as the chromaticity diagram is ...
Kel Solaar's user avatar
6 votes

Why don't we see charts of the colorspace/gamut of a DSLR?

The chromatic gamut is the property of output device, not a recording device. The colorimetric input device is characterised with it's compliance to Maxwell-Ives criterion - i.e. how metamerically ...
Euri Pinhollow's user avatar
5 votes

Can I refill a printer's gray tank with a completely different color to increase color gamut?

The Epson 3880 uses a set of 9 cartridges. It's still a CMYK sort of system, but more like CCMMYKKKK. With four different varieties of black, it's understandable that you might be thinking that ...
Caleb's user avatar
  • 31.7k
3 votes

Can an RGB channel be shifted to increase color gamut into the violet range?

Yes but you do not even need to. The color gamut indicated by the triangle is the coverage of linear combinations of the three RGB primaries. By moving the primaries you can expand or contract the ...
Itai's user avatar
  • 103k
3 votes

Can I refill a printer's gray tank with a completely different color to increase color gamut?

Get the chromaticity coordinates of the ink and plot them on a CIE Chromaticity diagram.It's the colourful one shaped like a lung. The coordinates are given as an "X" and a "Y" which you can locate ...
Stan's user avatar
  • 5,521
3 votes

How to reduce color gamut in Photoshop?

Yes. This is called colour proofing. First, make sure you have colour management enabled, that is, the image has a colur profile assigned (check in Edit −> Assign Profile), and generally the colour ...
Zeus's user avatar
  • 1,549
3 votes

Is there free software to compare gamuts?

You don't need any software to compare gamut coverages For what it's worth, you can get the three X-Y chromaticity coordinates from the monitor manufacturer and the three from the ink manufacturer ...
Stan's user avatar
  • 5,521
2 votes

Is there free software to compare gamuts?

viewgam from ArgyllCMS will generate an HTML page with rotatable 3D view. http://www.argyllcms.com/doc/viewgam.html Convert one or more gamuts into a X3DOM 3D visualization file. This allows ...
Euri Pinhollow's user avatar
2 votes
Accepted

Is there free software to compare gamuts?

Imatest has released the latest GamutVision 1.4 as a free, GPL licensed product for Macs and Windows. http://www.gamutvision.com/docs/smudged_pines.html It has a large number of features including ...
doug's user avatar
  • 1,217
2 votes

Can I refill a printer's gray tank with a completely different color to increase color gamut?

Modern color imaging is based on the 19th century trichromatic color theory of color vision proposed by Young. The first color picture was made in 1861 by James Clark Maxwell using three pieces of ...
Alan Marcus's user avatar
  • 39.2k
2 votes

Why don't we see charts of the colorspace/gamut of a DSLR?

It is true that DSLR makers don't provide chromaticity diagrams for their cameras, they usually encode their images using sRGB or Adobe 1998 RGB colourspaces like @MirekE stated it. Any colour lying ...
Kel Solaar's user avatar
2 votes
Accepted

Color space vs bit-depth and nesting

A color-space is a basically all possible colors within a certain bounded bounded volume. There are numerous color-spaces and they are usually defined by a set of variables. sRGB for example is all ...
Itai's user avatar
  • 103k
2 votes

How does "blue light" from computer monitor warp our perception of RGB color gamut when photo editing?

It depends somewhat upon whether your target for the monitor is D65, which has become pretty much universal among graphic design professionals, or D50, which has long been the standard for print ...
Michael C's user avatar
  • 175k
2 votes

Can a 65% RGB laptop display 100% RGB on an external monitor?

A computer's graphics processor simply processes/regurgitates color information to the maximum accuracy it is capable of (e.g. 8bit, 10bit)... i.e. it can fully replicate any color space (overall size/...
Steven Kersting's user avatar
2 votes

How does "blue light" from computer monitor warp our perception of RGB color gamut when photo editing?

My first thought would be: The "Blue Light is a dangerous to the eye" is really misunderstood. Modern monitors do not emit dangerous radiation. You could say so during the cathodic rays ...
Rafael's user avatar
  • 24.8k
1 vote

How does "blue light" from computer monitor warp our perception of RGB color gamut when photo editing?

When there is an overwhelming color bias to what you are viewing it results in cone fatigue... the RGB (short/middle/long wavelength) receptors in the eye responsible for that color become tired/...
Steven Kersting's user avatar
1 vote
Accepted

Why are source colors out-of-gamut in generated custom ICC printer profile?

TL;DR : why are source colors that are known to be printable excluded from the generated gamut of a custom RGB ICC printer profile based on those colors? The stock profile gamut boundary generally ...
Steven Kersting's user avatar
1 vote
Accepted

Is a classic analogue printed film photo CMYK?

Getting to your ultimate question about the gamut to use for scanning photos. The short answer is that yes, it can make sense to scan photos with a wider gamut than sRGB. Modern printers can ...
Jerry Coffin's user avatar
  • 19.3k
1 vote

Can an RGB channel be shifted to increase color gamut into the violet range?

Apparently our color perception is willing to be tricked into perceiving "violet" using only lower-frequency wavelengths. I finally found the following explanation of the phenomenon (...
feetwet's user avatar
  • 3,603
1 vote

Can an RGB channel be shifted to increase color gamut into the violet range?

Gamut is much different than sensor spectral sensitivity. The title of your question infers gamut so to start there, digital cameras do not have gamuts. Color gamuts are applied to sensor data when ...
Nothingtoseehere's user avatar
1 vote

Can I refill a printer's gray tank with a completely different color to increase color gamut?

Just thinking creatively here. Is it possible to replace an ink color in an Epson 3880 with a completely different color in order to increase color gamut in the ranges that I typically use in my ...
Rob's user avatar
  • 1,813
1 vote

Why don't we see charts of the colorspace/gamut of a DSLR?

Cameras can shoot either in RAW, sRGB or AdobeRGB. For sRGB and AdobeRGB the gamut is given. RAW files do not have gamut, you need to convert the image to some color representation like RGB to get ...
MirekE's user avatar
  • 5,205
1 vote

Is there free software to compare gamuts?

Mac has a free gamut preview tool and you can compare two gamuts as well. It is part of the system ColorSync utility. It shows the gamut in 3D. I think I've seen a web based viewer once, not sure if ...
MirekE's user avatar
  • 5,205
1 vote

Why don't Hahnemüle papers trigger out-of-gamut warnings when softproofing in Lightroom (when Canon Matte Stock does)?

Out of gamut warnings have no well defined meaning using Perceptual Intent because all possible colors are supposed to be mapped to printable colors and compressed near the gamut boundaries. Ideally, ...
doug's user avatar
  • 1,217
1 vote

Is there free software to compare gamuts?

I use a program called PerfX. It seems a little hard to find a download right now, but you can get it at https://web.archive.org/web/20080511211242/http://www.tglc.com/english/PerfX/3D_Gamut_Viewer....
JenSCDC's user avatar
  • 2,339
1 vote
Accepted

Why did LR6 soft proofing thought some colors were out of gamut even if they turned out perfect?

There are a few points to your question I'm unclear on, this is too long for a comment, and I think it also works to answer the question. So, focusing really only on the first profile: It sounds like ...
Dan Wolfgang's user avatar
  • 12.5k
1 vote

Why did LR6 soft proofing thought some colors were out of gamut even if they turned out perfect?

The problem with CMYK printers is that they cannot make saturated colours as bright as unsaturated colours. LCD is somewhat similar to CMYK printer from this point of view but printer is more limited ...
Euri Pinhollow's user avatar

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