AS3 ASE Adobe Swatch Exchange Encoder Demo

The Adobe Swatch Exchange (ASE) is a useful file format for importing colour schemes into applications in the Creative Suite (Photoshop, Illustrator etc). Read : ASE (Adobe Swatch Exchange) Encoder »

Posted on 30 Mar 2010
15 Comments
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Glitchmap - AS3 Glitch Generator

Sometimes it’s good to break things…

During a recent project I needed to find a way of simulating digital interference on an image / video stream. At first, it seemed the best approach might be to use the graphics API or Bitmap effects, but why imitate when you can have the real thing. Read : Smack My Glitch Up »

Posted on 03 Feb 2010
98 Comments
22 Trackbacks

Bitmapdata Colour Palette

My previous post explained and provided a very simple method for extracting colours from a BitmapData image, by averaging the colours in specific areas. This can have several applications, for example it features in a large amount of prototypes for the update to my Motion Tracking engine. However, if you want to create an accurate and representative colour palette from an image it has several flaws, the most obvious being that by averaging colours, you are actually removing or diluting the striking but perhaps less frequent colours in the image – the very colours which often make an image’s colour palette so exiting!

So, if we’re to extract an exciting and more representative palette from an image, we need a more intelligent algorithm; one which takes into account what makes a colour palette interesting – the contrasts and juxtapositions of colours within the image. Read : BitmapData Colour Palette »

Posted on 11 Oct 2008
55 Comments
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BitmapData Average Colours

If you want a very simple way of extracting a colour palette from an image, one technique would be to average the colour values within specific areas. Averaging colour values is almost identical to averaging numbers, except with the added initial step of finding the red, green and blue components of the colour. To do this we can use bitwise operators, in this case bitwise shift, to perform fast operations on each bit inside the unsigned integer returned by getPixel or getPixel32. If you want to know more about bitwise operators, Moock has written a detailed and, as ever, very clear article on where, when and why to use bitewise operations. You can read it here.

So once you’re familiar with how to shift the bits of an integer, you can easily get the RGB values from a 24 bit hexadecimal by moving the bits to the right by a certain amount using the bitwise right shift operator (>>). Read : BitmapData Average Colours »

Posted on 10 Oct 2008
26 Comments
12 Trackbacks

Webcam Glitch Art

What happens when you let vista install drivers for you? Shit happens. But in this case, good shit. Read : Webcam Glitch Art »

Posted on 09 Nov 2007
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About me

Soulwire is a weblog by Justin Windle; a Senior Interactive Developer at Fi (Fantasy Interactive), Stockholm – I often Tweet, Flik, Link and Vim.

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