Comments on: BitmapData Colour Palette

By: Allie

Allie — Fri, 01 Jul 2011 22:01:49 +0000

Know this is old, but it’s exactly what I was looking for and has a *great* walkthrough. I appreciate it!

By: Tim

Tim — Mon, 17 Jan 2011 10:11:04 +0000

HI.
This is amazing work. Very well made coding + tutorial.
Im trying to embed it with a photo album, so when u switch to another picture, the colors shows.
Im adding the images from a xml file..
any help here?
Thanks alot for the great work so far. Tim

By: Hcsaba

Hcsaba — Sun, 09 Jan 2011 19:28:09 +0000

Hi, it is a very good job. I can use the unique colors in my second hobby.
The first is the programming. :) Thanks.

But I have a little problem. So I think You can help me. Because Google don’t help.
How to put my 16 unique colors to a paletteMap. And apply to bitmapdata.
My code work fine with threshold but very slowly.

for (var i=0; i var c1:uint=actcols[i].colour;
olddist=1000;
for (var j=0; j> 16) – ((c2 & 0xff0000)>> 16));
var gx:uint = Math.abs(((c1 & 0xff00) >> 8) – ((c2 & 0xff00) >> 8));
var bx:uint = Math.abs((c1 & 0xff) – (c2 & 0xff));
dist=Math.sqrt(rx*rx+gx*gx+bx*bx);
if (dist<=olddist) {
olddist=dist;
id=j;
}
}
Image.threshold(Image,Image.rect,new Point(0,0),"==",returnARGB(c1,255),returnARGB(m_colours[id],255));
}

Thanks for reply and sorry my bad English.

By: danbo

danbo — Thu, 23 Dec 2010 14:22:38 +0000

Nice work. I’m working on maps, your appplication permits many works.
Very good!

By: JH

JH — Sat, 18 Dec 2010 17:08:21 +0000

Please delete my last comment, I did something wrong.
Greets, J.

If you want a working example for flex/air just let me know by email and i will send you the example for your site.

By: JH

JH — Tue, 14 Dec 2010 10:54:46 +0000

Hi,
Thank you, that fixed it.
Little question;
I am using your code in flex/air. The ColourUtils.as file is exactly the same, the image, the amount of colors in the palette and the tolerance are the same, but i don’t get the same colors as in your example… the colors i get doesn’t even match the image..
Any idea?
I can provide a flex example, just let me know by mail.
Greets, J.

By: Soulwire

Soulwire — Tue, 30 Nov 2010 10:00:49 +0000

You’ll need CS3 or above to open it I’m afraid.

By: Thanks! | omarrr

Thanks! | omarrr — Sun, 28 Nov 2010 08:01:51 +0000

[...] Url: http://blog.soulwire.co.uk/code/actionscript-3/colourutils-bitmapdata-extract-colour-palette [...]

By: JH

JH — Wed, 24 Nov 2010 09:58:52 +0000

Hi, i downloaded the demo, but flash puts out an unexpected file format error when i start the Colour Palette Demo.fla.
I use flash professional 8
Please some help, so i can view your demo.

By: Soulwire

Soulwire — Thu, 12 Aug 2010 22:09:31 +0000

It sounds like you might want to look at the BitmapData.threshold method.