January 20, 2009
By: Dexter
Category: GIMP, Tutorial
Nothing much has happened in last few days. Was playing around with GIMP when I decided to try out making a finger print like effect. Follow the steps and probably you will get a fingerprint ready for yourself.
- Start with a small blank gimp canvas.
- Using the Elliptical Select Tool, select a oval region and fill it with some dark color. This color represents the ink which is used to the finger print mark. You should get something similar to IMAGE 1
- Run the Noise - Pick (Filters — Noise — Pick) filter on the select oval area. This removes some pixels from here and there, converting your oval to a distorted one. See IMAGE 2
- Next run the filter Erase Every Other Row (Filters — Distort — Erase every other row) on your image. Make sure you have selected the rows/cols option to rows. You should get something similar to IMAGE 3.
- Now select the oval area again using the elliptical select tool.
- Use filter Iwarp on this. (Filters — Distort — Iwarp).
- Play around will different values and options of Iwarp, I used small Deform Radius and small amount of Deform Amount. and opted for Deform mode as Swirl CCW and Swirl CW. You just have to move the mouse across the image shown in the upper left corner of the dialogue box. And best part is the changes are not immediate, it has a reset button which restores the image back to its basic state.
- Iwarp dialogue box
- Play around with the image, once you are happy with your finger print, click on ok to finally apply on the original image.
|
 IMAGE 01 - Finger Print basic  IMAGE 02 - After using pick filter Filter  IMAGE 03 - After applying Erase every other row  IMAGE 06 - final finger print after applying the Iwarp filter. |
And remember whatever you do, whenever you try this out again … you will not get the same finger print again. As it is know no two finger prints are identical. 
February 3rd, 2009 at 6:16 pm
Thanks a lot, it’s a brilliant and original work!
Grazie mille, è un lavoro bello e originale!
February 4th, 2009 at 8:47 am
Thanks Luke.. saw your site too…. very impressive, very nice design and great work.:)