it uses copyChannel method fro BitmapData class (1 = red, 2 = green, 4 = blue, 8 = alpha)
import flash.display.BitmapData; import flash.geom.Rectangle; import flash.geom.Point; var background_bmp:BitmapData = new BitmapData(this._width, this._height); background_bmp.draw(blackWhite); blackWhite.attachBitmap(background_bmp, 1); //Medium Grayscale background_bmp.copyChannel(background_bmp, background_bmp.rectangle, new Point(0, 0), 2, 1); background_bmp.copyChannel(background_bmp, background_bmp.rectangle, new Point(0, 0), 2, 2); background_bmp.copyChannel(background_bmp, background_bmp.rectangle, new Point(0, 0), 2, 4); []'s Leandro Amano On 5/9/07, Mike Mountain <[EMAIL PROTECTED]> wrote:
Hey guys I'm working with greyscale images - assume neutral colour temperature is 50% grey. These are shaded from white to black, white representing light, black shading, and all the variable shades in between etc. I need to tint the greyscale bitmapData to produce a shaded coloured image using the colorMatrixFilter() from an RGB or Hex value. so if the whole image was 50% grey (ie. r=128, g=128, b=128) it should become r=256,g=0,b-0 - black should stay black, white should stay white but the colours in between should be shades of red. Anyone got a clue how I can do this? Cheers Mike _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
-- -- Leandro Amano Digital Bug Chief Creative Officer Adobe Certified Expert Adobe Certified Instructor Adobe User Group Leader _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
