Episode 027: Sketching

I wanted to make a sketch of my L001 but the result is not what i wanted to be(the line around the fish is not clear enough and the dots on the fish are not closed). I think the problem is caused by the starting image(bad colors, not enough contrast) can someone give me some clues to get my sketch better?



2 comments so far...

Ivan Angelov January 28, 2008, 07:56 PM
I think the result is not that bad, it lacks a little contrast.
I can give you the following idea:
Cut out the fish, convert it to B&W, edge detect it, then use potrace on it. Use the full image resolution, if the original image is not large enough, make it double in size.
You can find poreace here: http://potrace.sourceforge.net/
It is a GNU licensed software.
Good luck and post the results! :)

PS: What is L001?

wax January 28, 2008, 08:52 PM
L001 is a sort of catfish, its normal name is Pterygoplichthys joselimaianus(the L is a scientific name). Really interesting for photography as each number has his own pattern/colors
http://www.planetcatfish.com/catelog/numbers.php?mode=l&thumbs=16 is a site on catfish
Most sorts are really rare.

The potrace tool makes me think about streamline. I'll try that on the fish(if i mange to install it).

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