Please visit out web site http://www.vihgo.com for tutorials.
Vihgo is a unique, easy-to-use, yet powerful iPhone application. It can improve photo quality and make special effects. You can add rain, snow, rainbow, or fog to images, make pictures look like canvas paintings, old photos, or halftones, simulate realistic 3D page curl effect, and many more.
Vihgo has thirty five realistic filters and we are working on new ones. To get the best result for your photos, each filter has a set of on-screen parameter controls that you can use to adjust the effect. You can also draw mask to focus the effect to a portion of your image and further extend your creativity.
Vihgo has the following filters:
1. Cutout
2. Motion blur
3. Old photo
4. Pencil
5. Newspaper
6. Glass
7. Sketch
8. Rain
9. Snow
10. Fog
11. Rainbow
12. Soft glow
13. Water ripple
14. PAGE CURL !!!
15. Puzzle
16. Emboss
17. Hotmix
18. Impression art
19. Poster art
20. X-Ray
21. Paper
22. Canvas
23. Rushout
24. Lake
25. Explosion
26. Sepia
27. Smoke
28. Wave
29. Feather
30. Grunge
31. Rusty
32. Blur
33. Frame
34. WaterColor
35. Reflection
Not sure which filter to use? No problem! Just run the “Traverse" mode. All filters will be applied to your photo one by one. Touch the screen to stop once you find the one you like.
Vihgo supports both portrait and landscape mode. It preserves your photo’s original size when saving. It is fast and reliable.
Video tutorial on youtube: (thanks MacintoshTipz, MotoGQ)
http://www.youtube.com/watch?v=Ed_5uuPl0I8
http://www.youtube.com/watch?v=nkOIwwhgO2M