There is still time to submit an abstract for AIC2017 which will be held this autumn in Jeju island in South Korea. It’s probably the largest colour conference of the year and every four years they have an especially large one called the congress. We hosted the last congress in UK but this time it is the turn of South Korea. If you can attend this conference I highly recommend it as a way to meet all sorts of interesting and colourful people.
Electronic displays can vary in their characteristics. Although almost all are based on RGB, in fact the RGB primaries in the display can vary greatly from one manufacturer to another. Colour management is the process of making adjustments to an image so that colour fidelity will be preserved. In conventional displays – desktops and laptops – the way this is achieved is through ICC colour profiles. Colour profiles store information about the colours on a particular device that are produced by RGB values on that device. So to make a display profile you normally need to display some colours on the screen and measure the CIE XYZ values of those colours; you then have the RGB values you used and the XYZ values that resulted. The profiling software can use these corresponding RGB and XYZ values to build a colour profile so that the colour management engine knows how to adjust the RGB values of an image so that the colours are displayed properly. Building a profile often requires specialist colour measurement equipment – though this can often be quite inexpensive now. If you are using your desktop or laptop display and you have never built a profile then you are probably using the default profile that was provided when your display was shipped. The default profile will ensure some level of colour fidelity but particular settings (such as the colour temperature or the gamma) may not be adequately accounted for. If you want accurate colour then you should learn about colour profiling.
It all sounds simple except for the fact that ICC colour profiles are not supported by iOS or Android operating systems on mobile devices. I find this really surprising but that’s how it is for now. Maybe it will be different in the future.
This means that ensuring colour fidelity on a smartphone or tablet is not so straight forward. So what can you do?
Well, there are two commercial solutions to this problem that I am aware of. They are X-rite’s ColorTrue and Datacolor’s SpyderGallery. ColorTrue and SpyderGallery are apps that will use a colour profile and provide good colour fidelity. These are great solutions. Perhaps the only drawback is that the colour correction only applies to images that are viewed from within the app. Having said that, they allow your standard photo album photos to be accessed – but the correction would not apply, for example, to images viewed using your web browser. This is why a proper system implemented at the level of the operating system would be better, in my opinion.
There are two alternatives. The first would be to implement your own colour correction and modify the images offline before sending them to the device. This would not suit everyone – the average consumer who just wanted to look at their photos for example. But it is what I typically do here in the lab if I want to display some accurate colour images on a tablet. But if you were a company and you wanted to display images of some products for example – it might be a reasonable approach. It has the advantage that the colour correction will work when viewed in any app on the device because the colour correction has been applied at the image level rather than the app level. But it does mean you need to do this separately for each device and keep track of which images are paired to each device. This is ok if you have one or a small number of devices but maybe not so good if you have hundreds of devices.
The second alternative would be to build your own app. If you want to do things with your images that you cannot do in ColorTrue or SpyderGallery or if you have lots of devices and you can’t be bothered to manually convert the images for each device, then you could install your own app that implements a colour profile and then does whatever else you want it to do.
Infographic that summarises a survey that I carried out of 2000 British office workers. For the full report, which was in association with Samsung, please click here.
Yesterday I spoke an an event to launch Samsung’s latest curved screen displays. The technology is really gorgeous and everyone who attended was wanting one of the new displays after seeing them.
I am convinced that curved screens will become ever more popular in the future because not only do they look good but they offer serious advantages for users who undertake intensive tasks – the sort of tasks that need a large desktop display rather than a mobile device. When it comes to desktop displays it is really quite simple – bigger is better.
Many people – and I am one of them – are what is known as ‘double screeners’. I have two screens attached to my desktop and my operating system is spread seamlessly across them because I wanted more screen space to work in. I recently carried out a survey – you can find more details here – which showed that 38% of British office workers are already using two or more screens attached to their desktop computers.
Of course, in an ideal world one very large screen would be better than two smaller screens. But there is a problem with most flat-screen technology which is that the LED/LCD pixels emit light straight out but emit a lot less light at an angle to the screen. This means that you look at a large flat screen the light reaching your eye from the edges of the screen is a lot less. Not only that but, because you are looking at the screen at an angle, text and other fine details can be distorted at the edge. Curved displays get around this problem and I am hoping to replace my two flat screens soon with a single Samsung curved display.
With a curved display the distance from the eye to the screen is the same across the whole display and the angle of view is also constant. Not only does this solve the colour and acuity problems I just mentioned but it means that users need to need fewer eye and neck movements. Given that many of us spending longer using a display than we do actually sleeping this could have a big effect on user well-being.
Our survey also showed that about 60% of office workers think it is important that the office technology they use looks good. This can help to motivate them and help them to feel good about themselves. The new Samsung curved displays certainly will satisfy these people.
Just read a really informative article by David Airey – an independent brand identity designer – about colour and brand identity. In his article David reiterates some ideas I heard from Laura Hussey in Design Week (and recently blogged about); that is that some companies such as Oxfam and The Guardian are rebranding with a rainbow colour palette. As David writes: “Multiple colours speak of choice, variety and diversity. Think Google, NBC, eBay, or MSN to name but a few that use more than two colours to express their breadth.”
However, David’s post goes further to describe some of his own work with Halcyon coffee and the use of a range of different colours: “The colours used within the brand and environment were derived from, and act as a subtle nod towards the diverse colour palette used during Britain’s great creative periods of the past — our Halcyon days, mixed with those we see around us today.” Definitely worth having a read of David’s article
An article in Stuff reveals what 3D Systems claims to be the world’s first continuous-tone full colour 3D plastic printer, called the ProJet 4500.The ProJet 4500 offers full-colour parts with colours that are able to blend into each other with gradient transitions.
We’re starting a new programme at Leeds University next September. It’s MRes Colour Communication. This is a one-year Masters programme by research but with a twist. There is a taught component in the first semester to get everyone up to speed to make sure they understand the basics of colour communication. They then explore one aspect of this in their research project and submit a dissertation at the end of the year. Please contact me at my University email of firstname.lastname@example.org for further information or visit http://www.design.leeds.ac.uk/pg/research-degrees/.
As some of you may know, I was General Chair of AIC2013 this year. We had a great time in Newcastle and spent a week with over 600 delegates talking about colour. But time moves on and we are approaching 2014. I would therefore like to draw your attention to the next AIC meeting which is in Mexico in October 2014. The theme is colour and culture and the venue – Oaxaca – is stunning. I hope to see you there.
For further details visit http://www.aic2014.org/index_en.html
Very interested in this new colour-measurement device called the swatchmate cube.
The new device is launched by Swatchmate on November 13th. That;s two day’s time from now. It captures the colour and displays it on your smartphone. Does it provide any numerical data such as CIELAB? I don’t know. How much is it? I don’t know. I guess we’ll find out at the launch!!