RGB Printer Profiling with i1 Profiler
April 14, 2011
Over the past few months I’ve been one of the team beta testing the new X-Rite i1 Profiler software, and now that it’s been officially released I can begin a series of blogs taking you through the new software.
The new X-Rite i1 Profiler is available as the following products:
- X-Rite i1 Basic Pro, comes with i1 Pro spectrophotometer (only monitor profiling enabled – can be upgraded in the future as required)
- X-Rite i1 Photo Pro, comes with i1 Pro spectrophotometer (Monitor, RGB printer profiling and camera workflow)
- X-Rite i1 Publish Pro, comes with i1 Pro spectrophotometer (Monitor, RGB & CMYK+n printer profiling etc)
- X-Rite i1 Publish – just the software (RGB & CMYK+n workflow). Works with your existing i1 Pro or ISIS measuring device.
- X-Rite i1 Publish Upgrade A – for existing owners of i1 Pro solutions (except i1 Basic, OEM and LT versions – check with us for eligibility), ProfileMaker 5 and Monaco Profiler 4 users,
- X-Rite i1 Profiler Upgrade B – for existing owners of the i1Basic Pro; i1Basic; i1Design LT; i1Photo LT; i1Pro OEM
We’ll start with RGB printer profiling, in my tests the new software produces profiles that are noticeably better in many areas than i1 Match, ProfileMaker or Monaco Profiler. Also for users of i1 Match the new software includes advanced functionality previous only available in ProfileMaker or Profiler, but before we delve into the RGB printer profiling workflow it’s worth saying a few things about the general interface.
The opening screen or page of the software has several useful features including the ability to automatically check for software updates, access information about the software online and most important of all access training videos. One of my standard pieces of support advice is RTFM – Read The Flippin’ Manual. I’m sorry, but having written software manuals in the past I’m one of those people that reads the supplied manual for whatever they buy, it usually saves me a lot of time and lets me find features that might remain hidden if I didn’t know they were there. However, I realise not everybody gets on well with software manuals, apart from maybe as a cure for insomnia, so what I suggest is that the first time you open i1 Profiler you have a cup of coffee to hand and sit back and watch the training videos supplied via the handy button on the screen. They cover most of the functions of the software and are clear and very easy to understand.
i1 Profiler has two modes, Basic and Advanced. The Advanced mode really comes into its own when you’re profiling CMYK printers and for a lot of users doing just RGB printer profiling using the Basic mode will just stop you being presented with options that you’d always leave to default anyway, but in the interest of full disclosure I’ll write the rest of the blog assuming you are going to use the Advanced mode.
i1 Profiler uses a a step by step process and the options for each page can be saved into a workflow. Default workflows are supplied but you can also save your own to suit your own kit or processes. A workflow can include options such as the number of patches, page size and profile settings. Saved workflows, previous profiles and other saved data can be dragged and dropped onto the buttons in a workflow to set the options.
The first page, Patch Set, in an RGB printer profiling workflow defines the number of patches you want to measure. You can measure as few as 400 or up to 6000. In my experience you get little benefit from measuring over 1000 patches for an RGB printer profile. You have the option of scrambling or randomizing the order of the patches just in case there is any difference across the sheet, but there shouldn’t be on a inkjet printer. Once you have selected the number of patches you can then move on to the next page, Test Chart.
The Test Chart page allows you to define what measuring instrument you are using, the page size of your printer and other physical options relating to how the chart is laid out. You might have to step back and forth between Patch Set and Test Chart until you find a number of patches that fit on a certain number of pages. Personally, I think it would be better if they combined the Patch Set and Test Chart pages so you could define the page size and instrument then click a button to fill the page with patches. Anyway, once you have define the parameters you can then print the target or save it as a TIFF file.
The Measurement page is obviously where you connect your measuring device and measure the colours, and pretty much does what it says in a similar way to other profiling software. The next page, Lighting, is a new option that will be unfamiliar to users of i1 Match. Printer profiles can be built based on an expected viewing light to help improve the accuracy of the profile under that lighting condition. For example, if you were producing prints for a gallery that had a particular type of lights you could measure those lights and then use that measurement data when the profile was created to make the prints look good under that light source. Usually, however, you don’t know where the print will be viewed so the best thing for the vast majority of users is to leave the lighting options set to the default of D50 and skip the Lighting page.
Profile Settings also allows a lot of control over areas that most users will leave to default. The perceptual mapping options allow you to increase or decrease Contrast or Saturation and also the Neutralize gray option allows you to choose if gray colours are mapped relative to the colour of the paper or more absolutely neutral. The effect of these options will only be visible when printing with the perceptual rendering intent and I’d recommend first building a profile with the default options (all to zero) before changing anything. The effects are subtle but can be quite pleasing. The Tables option govern the size of the tables within the profile, again there isn’t much need to deviate from the defaults. By the way the defaults are displayed as ‘Custom’ for some reason – one of the issues I reported back during testing they didn’t have time to fix. Advanced sets other options most users won’t touch, you can find out what any option means by activating the Help function by clicking on the question mark at the bottom left of the screen and putting the cursor over the item you want explained.
The final ICC Profile page lets you save the profile. A 3D gamut graph of the profile is then displayed. You should then go and test the profile by outputting a few files before trying the new profile optimization and verification options, but more about those in the next blog.
If you want to test the quality of the profiles from the new software then we’ve already swapped our custom profiling service (http://www.nativedigital.com/products/Custom-ICC-Printer-Profile.html) over to using the new software.
Colour Guru Course – dates available in March, May & June
January 31, 2011
“Colour Guru in One Day” Training with Hands On Experience
Colour management experts The Colour Collective, are offering the ultimate one day course offering hands on ’try before you buy’ experience coupled with expert training on some of the most advanced Colour Management equipment available including X-Rite’s new i1 Profiler software.
Aimed at photographers, designers, wide format printers or pre-press professionals who want to understand how to fully control colour, achieving accurate and predictable results from input to output across a color critical workflow, “Colour Guru in One Day” is delivered by colour management expert & author, Rob Griffith.
Colour Guru in One Day will be held at X-Rite’s UK HQ near Manchester in their fully equipped training centre. With dates available in March, May & June each course is limited to only 8 attendees so everyone will get one-to-one attention & have the time to use and understand the equipment.
Benefiting from a blend of theory to understand the foundations of Colour Management combined with practical exercises that include profile creation, implementation, setting up the colour management options in applications such as Adobe Photoshop attendees are also welcome to bring questions and issues for open discussion on common workflow issues.
Demystifying what is often seen as a complex subject, course modules include:
- Colour Theory
- How Colour Management Works
- Calibrating & Profiling Monitors
- Using Applications to Colour Manage your Images
- Colour Managing Digital Photography
- Profiling RGB Printers
- Profiling CMYK Printers
- Proofing & Press Standards
- Evaluating Colour & Fine Tuning Results
- Colour Managed Workflows
The course is the latest to launch following a range of successful courses by Griffith. He commented, “The feedback we’ve had from past courses indicates our clients are benefiting from increased critical colour quality, which is saving them both time and money, in addition to improving their end results.”
Rob Griffith, author of Practical Colour Management has previously run training courses for X-Rite, Canon Europe, The Royal Photographic Society, The British Museum and has many years of colour management experience in a wide variety of different workflows and market sectors.
Colour Guru in One Day will cost £150.00 + vat per attendee with group discounts available. All attendees will receive a free copy of Practical Colour Management, course notes, email & telephone support after the course & exclusive discounts on products. Lunch & Refreshments will also be provided.
Dates available: 30th March, 11th May & 22nd June 2011
Book Online: www.colourcollective.co.uk (available shortly) or for further information, dates available, costs and booking enquiries contact Sales Director Tony Kirk on 01902 833800 or tonykirk@colourcollective.co.uk
Bespoke onsite courses on almost any colour management topic or solution are also available.
FOR PRESS ONLY:
About The Colour Collective:
Formed by experienced colour management and pre-press professionals Rob Griffith, Tony Kirk and Martin Doyle, The Colour Collective provides a range of products and services specifically designed to offer cost effective and scalable colour management solutions for every level of customer, from photographers, designers and advertising agencies to printers, repro houses and media groups.
Quato – Science & Simplicity
May 25, 2010
By Rob Griffith
I recently visited Quato in Germany as part of the process of The Colour Collective becoming a reseller of their monitors. We have been reselling colour critical displays from EIZO and NEC for many years and I’ve been involved previously with older marques such as Barco and PressView but still I was very impressed with Quato as a company and their products. It is rare in these days of mass manufacture to find a company producing small numbers of high quality products to very exacting standards.
Quato only produce a few thousand screens a year. They are produced in factory in Taiwan that is shared between Quato and several medical monitor manufacturers so the very high standard of quality assurance are used. When it arrives in Germany each screen is checked by hand. It is warmed up and calibrated and only passed for sale if it passes very stringent uniformity tests – much tighter than their competitors. If the screen drifts out of uniformity during its life it can go back to Germany for readjustment. Their dead pixel policy is very good as well. They guarantee no sub-pixel failures in the centre of the screen and no more than 2 or 3, depending on the model, over the rest of the screen.
Their iColor Display software that calibrates the software is packed full of useful features including the UGRA UDACT software for checking that the calibration and uniformity conforms to elements of ISO 12646 and the requirements of printing standards organizations such as FOGRA. It is also unusual in that it will calibrate not only Quato displays via the hardware connection but also other displays via software calibration, enabling both a main and palette monitor to be profiled by the same software for example. They bundle the X-Rite DTP94 with iColor Display because they have found it to be the most reliable device and X-Rite manufacture it specially for them. 
The companies active participation in many industry bodies such as FOGRA and the ICC is a measure of their commitment to colour science and quality.They also produce print profiling software that they claim is far more accurate than others. I’ll be testing that soon.
If you are looking for absolutely the best colour critical monitors on the market and need very high degrees of colour accuracy for soft-proofing or retouching then you should certainly consider a Quato. Such quality doesn’t come without a corresponding price tag though so these screens aren’t for everyone but as I said if you need to go that one step further in search of colour excellence then Quato could be the answer.
You can purchase Quato monitors in the UK from our online partner, Native Digital.
Visit us at IPEX 2010
May 10, 2010
Come and visit us in Hall 11, stand F222 at IPEX from May 18th – 25th at the NEC, Birmingham.
We’ll be showing the latest versions of the ProofMaster and PrintFactory RIPs by FourPees, along with Quato monitors.
You can register your attendance at IPEX here.
ISO 9001 with ISO 12647
November 20, 2009
By Rob Griffith.
For a long time I’ve mentioned when training that colour management is a form of quality assurance. You don’t recalibrate to profile a device because you think it’s inaccurate. You test, re-calibrate and profile the device regularly so you know it’s not inaccurate. Colour management should not be used to fix problems but to prevent them. I recently was asked to join an ISO 9001 with 12647 auditors course and had the opportunity to learn a lot more about quality systems and came to realise how well colour management fits into them.
ISO 9001 is a long standing quality management system standard and the BPIF (British Printing Industries Federation) are formulating a new standard that links ISO9001 with ISO12647, the printing press standard, to allow companies to be certified by internationally recognised bodies as being able to print to ISO 12647 and have the supporting quality systems in place to ensure both conformity to the standard and customer satisfaction. Read more
Profiling Wide-Gamut Monitors
June 23, 2009
Now that many top-of-the range TFT monitors from Eizo and NEC achieve or exceed the Adobe RGB colour space, one of the questions we frequently get asked is whether the calibrators we sell are still up to the job?
Our own testing shows that both the Eye-One series (Eye-One Display LT, Eye-One Display 2 and Eye-One Pro) along with the Spyder3 (Spyder3PRO and Spyder3Elite) will work just fine, although there are some issues with the X-Rite DTP 94 (aka Monaco Optix XR).
The DTP94 was officially discontinued by X-Rite a few years ago, just after their merger with GretagMacbeth, however it has still been available as an OEM product from some sources, although X-Rite themselves have no longer been officially providing software upgrades (which has led to some issues with new operating systems such as Windows Vista).
Despite the fact that the DTP94 is still regarded by some as one of the best devices of it’s kind, it can struggle with TFT displays that exceed 100% Adobe RGB gamut, such as the latest version of the NEC SpectraView Reference 2690. There is a work-around or ‘fudge’ as it’s technically called – get in contact if you want to know more.
For more information on our testing results with calibrators, check out this article here.
For more information or to buy an Eye-One Display, click here. For Spyder3 information, click here.
Adobe DNG Profile Editor
February 20, 2009
If you are using Lightroom or Adobe Camera RAW to convert you RAW files Adobe have developed a free (but not supported) tool to help you get better colour. Both Lightroom and ACR use prebuilt camera profiles created by Adobe. These generally give good results, often you have to do some tweaking of the RAW conversion to get what you want.
If you find that you are always doing the same tweaks to every shot then it could be a sign that the built in profile isn’t working very well for you. What DNG Profile Editor allows you to do is to tweak the built-in profiles to suit your own camera and preferences. It also allows you to build a new profile from a shot of a Macbeth Color Checker (converted to Adobe’s DNG format).
The new profile is then saved and is accessible in ACR or Lightroom. In my own quick test I shot the Macbeth under daylight on my D70, built a profile and then applied to a shot of my daughter I took a few months ago. The result was a definite improvement in colour saturation and accuracy versus the standard ACR 4.4 profile.
Downloading DNG Profile Editor and using a Macbeth Colorchecker could make a significant increase in the accuracy of your shots and also decrease the time it takes to process your RAW files.
To download the free (unsupported) application, go here:
http://labs.adobe.com/wiki/index.php/DNG_Profiles:Editor
For information or to buy a ColorChecker chart, go here:
http://www.nativedigital.co.uk/shop/product.php/44/macbeth-colour-checker-chart-v1
Calibrating the colour on your TV
February 1, 2009
Written by Rob Griffith
Doing what I do for a living can be a curse. I can’t flick through a magazine without looking at the quality of the repro and print, I can’t walk past an ad on the tube without peering closely at the dots. Needless to say local newspapers get recycled and not read due to the appalling quality of most of the images. It drives my wife nuts. Imagine my mutterings and chunterings when we had a new LCD TV delivered and the colour was a bit off. I was pausing DVDs and fiddling in the picture settings menus with the myriad of controls until I thought I had made an improvement. My wife put up with it for a day or so but my three year old son objected, loudly, to having Lightning McQueen’s adventures interrupted because his dad didn’t think he was quite the right hue of red. There was only one thing for it, the TV would have to be calibrated.
The Spyder3 TV uses the same colorimeter as the Spyder3 Elite or Pro systems but the big difference is that it comes with a DVD of test patterns that you play as you adjust the colours on the screen. You need a laptop close to the TV, of course. The software starts by asking you what type of TV you have (it will do them all, even projectors), and then what controls it has – Brightness, Contrast, Colour Temperature and Tint etc. You then have to show one of the test patterns, take a measurement with the colorimeter and then adjust the TV and measure again. There is a lot of juggling the remotes for your TV and DVD player and it took about 40 minutes but the improvement was considerable.
The only weakness is that my TV had more controls than the Spyder3 TV adjusted so I wasn’t sure what values to leave those that weren’t included at but opted to leave them at the defaults. The colour still wasn’t perfect but it was in the ball park and all I felt I needed to do was to adjust the red slightly to get the fleshtones a bit better.
I’d also like to know what standard I’m adjusting the TV to, presumably some TV industry standard. There is a professional level software from Datacolor called ColorFacts that is aimed at the broadcast industry and now I’ve dipped my toe into TV calibration I can see it as being a possible addition to our list of services.
Find out more about Spyder3TV and buy online here:
http://www.nativedigital.co.uk/shop/product.php/716/spyder3tv
Which Monitor Calibrator is best?
September 1, 2008
Written by Rob Griffith
August is usually a good month for me in that, because of holidays etc, I have less site visits for training or consultancy and so I can actually clear the back log of testing and research jobs I’ve been promising myself I’ll do all year. One such job is trying to come up with an answer to the above question, one I get asked very frequently. To get an answer I used my LaCie 324 monitor and the BlueEye Pro software that comes with it, and a Spyder3, a i1 Display 2 and an i1 Pro. I used the BlueEye software and not the Datacolor or X-Rite software in each case to make sure I was only testing the calibration hardware and not the very different approaches the different software takes to monitor calibration. Read more
Printing onto unusual media
July 10, 2008
Written by Rob Griffith
After nearly ten years in colour management there aren’t many things I haven’t profiled. Printing onto cermaics, fabrics, plastics, metals can all be profiled to give better results but of course they do cause more problems than conventional media.
This week I visited a company I have been to before that seem to delight in giving me something new to profile. I have previously colour managed their fabric printing with great success and this has meant they now call me in whenever they get a new system in. This time as well as re-profiling a dye sublimation fabric printing system as part of a regular maintenance agreement I was going to tackle their new leather printing system. Read more
