To use a limited 7 colour palette, made up of 3 pantones.
Red, red-orange, yellow-gold, green, blue, blue-purple and a very dark brown.
My focuses for this were 'How am I going to get as much information into the image as possible?' and 'What colour should I attribute to which form?'
Trying to bring information through the shape of block colour and trying to be as accurate with the colours as possible.
If we were to prepare this images as if they were to be printed in the Nobrow books, they would have to be separated into the three main colours, or masters - red, yellow and blue.
If the image has been produced in photoshop, it's a simple process of using the magic wand tool to highlight the three different sets of colour, copying them as a new layer and adjusting the levels to produce a completely black image, which can be used in photocopying, screen printing etc.
By using these masters on a photocopier you can imitate the screen printing process, by simply assigning a single colour to each master and photocopying over the same sheet. This requires the sheets to be cut straight and the masters to be aligned correctly on the page.
My sheets were a bit wonky and it was a right pain in the arse trying to align things on top of the copier, so my practice image turned out a bit wonky, which I could've fixed by cropping the paper down.
I'll probably use photoshop to generate my masters as it'll save on time and by printing them out they're more likely to line up correctly.
You can get some really vibrant colour combinations.
It seems wiser to print the lightest colours first and gradually get darker.
A little bit of overlap can add to the image, but complete failure to line-up looks derpy.