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Not sure if this is even possible

Apr 15, 2011, 18:18
Post: #1
Not sure if this is even possible
I am trying to isolate koi for the front page of my koi club newsletter. Most of the koi are photographed on a blue background because it makes the colors stand out better and it is complementary to the orange that is most common in this fish. The problem is that when I am working with a white or light colored fish, the blue bleeds into the light colors, particularly in the fins, so I end up with fish that are blue on the edges.

I am not a graphics artist and in no way an expert on gimp and I haven't found any filters or methods that might help me figure this out.

This is the original picture
   

This is how I butchered it.
   

You can see how the blue has infiltrated deeply into the white. This fish has brilliant white that needs to show up and I'm really hoping there is a filter or something I can use to make it happen. If anyone can help me, I would greatly appreciate it.
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Apr 15, 2011, 19:51
Post: #2
RE: Not sure if this is even possible
One thing I have to say, is the edges are a little Alliased, sorry no idea how to fix your color troubles, but have you read any tutorials on rendering?

The best method to render with is using Paths, and carefully selecting around your object, this gives a very clean edge, if done with a high quality image, are you planning on using these images at the size they are? Bigger? Smaller?

And only a guess on the blue, maybe some sort of Colorizing to removed the Blue?
Best of Luck,
Willy
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Apr 16, 2011, 03:25
Post: #3
RE: Not sure if this is even possible
Willy, I've struggled with that, but I'll read some tutorials on rendering and see if I can do a nicer job of it.

Ofnuts, Thank you for the explanation! I'm going to have to break it down and just work with it until I fully understand exactly what I'm doing and how it's happening. I've seen those control panels, but I had no real understanding of them. Typically I tried moving a slider all the way one direction to see if it got close to what I wanted, and when it didn't, I abandoned that altogether. I really wish I could say I was on the right track, but I was way off track.

Thanks again!
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Apr 16, 2011, 08:07
Post: #4
RE: Not sure if this is even possible
Once again, thank you for the help. I just got done using paths to take the fish out of the background and the saturation brush to take all the blue out of the fish and make it look great -- or at least as great as I can make it right now. Actually doing it was really fast, so I'm not just pleased, but amazed. In case you are interested, this particular fish has been nominated for the AKCA Young Champion from our club. It will compete against fish from all over the country.

DrCreosote
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Apr 16, 2011, 13:57
Post: #5
RE: Not sure if this is even possible
That is a very cool acomplishment Big Grin

Do we get to see your finished Product?

Best Wishes in the Competition,
Willy
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