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Index › Programming Questions & Help › Syntax Questions › Sorting pixels[] by colour
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Sorting pixels[] by colour? (Read 584 times)
waffl
Sorting pixels[] by colour?
Mar 1st, 2008, 11:58pm  
Hi,
I am new to processing and am trying to write a program that will take the colours of every pixel and then arrange them sort the pixels[] array by similarity of the colour.

Evidently, sort(pixels) isn't the way to go about it as I am getting bunches of white lines in between areas of colour. I am thinking this has a lot more to do with RGB theory than syntax. It's confusing because the white is popping up everywhere because of the way RGB works – I'm wondering if there's a colourmode that will let you sort things more simply than building some crazy model to sort RGB values?

Right now, i am just sorting pixels[] and using set to redraw each pixel based on the sorted array.

If anyone could point me in the right direction, that would be fantastic!

Thanks a lot!
Alan

http://img.waffl.ca/ZZ6B0DD415.jpg
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V
Re: Sorting pixels[] by colour?
Reply #1 - Mar 2nd, 2008, 2:02pm  
would the pixel intensity be enough ?
you could convert the pixel to a greyscale scale and sort by intensity.

I = R+G+B / 3

or using multipliers to modulate each channel

I = (R*0.3 + G*0.59+ B*0.11)


not sure how it would look but, worth a try.
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Victor Martins | www.pixelnerve.com/v
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eskimoblood
Re: Sorting pixels[] by colour?
Reply #2 - Mar 2nd, 2008, 4:37pm  
Toxi has done this a while  ago:http://toxi.co.uk/blog/2006/04/colour-code-snippets.htm
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Andreas Köberle {eskimoblood}
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