On 10/16/2010 07:05 AM, BlackDalek wrote:
> Ok, what I want to do is turning out to be a little more difficult than usual.
> I can find plenty of tutorials on making parts of images transparent or 
> semi-transparent.
> I can work out how to do this from scratch, creating an image.
> The problem here is I am not creating an image from scratch - I want to take 
> an existing flat image with existing background and remove background and be 
> left with an image (complete with transparent and semi-transparent areas) 
> which I can then save to a PNG or use on any other background I wish.
> To illustrate what I want to do, I have made mockup images below.
> Image 1 shows an image with a black background. I want to remove the black 
> background but leave the image and semi-transparent "rays" intact so they can 
> be placed onto a different background, as in image 2. Note that the "rays" 
> appear over the new background colour.
> image 1 http://i7.photobucket.com/albums/y265/BlackDalek/kbblack.png
> image 2 http://i7.photobucket.com/albums/y265/BlackDalek/kbcolour.png
> If anyone knows how to achieve this, please ellaborate. Feel free to download 
> and use the above kbblack.png image to explain how to get from image 1 to 
> image 2.
> Thanks

I get fairly close results by using two layers for the cat from top to 

1) Plain cutout from original by using the magic wand on the background 
(the goal being to get  a cutout of the center of the cat) with a 5pix 

2) "color to alpha" from original using black as the color.

3) Diagonal gradient using colors picked from your color version

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