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 
bottom:

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 
grow/feather

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

3) Diagonal gradient using colors picked from your color version









_______________________________________________
Gimp-user mailing list
Gimp-user@lists.XCF.Berkeley.EDU
https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user

Reply via email to