I used the ‘Image Trace’ function in Adobe Illustrator on my iMac to convert my pen and ink drawing of a sofa into a vectorised image. On a layer below I used the pen tool and – my new favourite – the blob brush to add a few areas of solid colour.
You can then re-colour the image either by changing colours individually or selecting the whole image and going for an alternative scheme from a colour theme library. Here I’ve used ‘Pop Art’, ‘Prehistoric’ and ‘Ice Cream’ (the one in chocolate and pistachio).
A Shed in the Snow
I converted this sketch of our shed in the snow in Illustrator for iPad. Instead of ‘Image Trace’ there’s a very similar vectorise function, which can convert it into something nearer to a woodcut or lino-cut.