can I add fisheye effect on a flat image??

Hi, I am trying to add a fisheye lens/ barrel effect to a flat image, I already found a code for that in Matlab, guess it should be difficult to transfer into VB or C but I am not very familiar with this transformation.

This is the link for the Matlab conversion...

http://stackoverflow.com/questions/2589851/how-can-i-implement-this...

Your help is appreciated, thanks in advance :)

Replies to This Discussion

Permalink Reply by David Rutten on January 26, 2014 at 2:42pm

Hi Dalia,

Grasshopper doesn't have any bitmap manipulation tools by itself. I think there are some plugins that do that (firefly?). You're going to have to write this from scratch if you want to do it in VB/C#.

I see two reasonable ways forward:

Use a graphics program such as Photoshop, Illustrator or Paint.NET. They typically have fish-eye lens distortion available as a standard feature.
Create a Rhino surface, apply the image as a texture and then fiddle with the control-points to achieve a deformation.

David Rutten

david@mcneel.com

Permalink Reply by michael sprinzl on January 27, 2014 at 12:50am

This article might help:

http://stackoverflow.com/questions/2477774/correcting-fisheye-disto...

Permalink Reply by David Rutten on January 27, 2014 at 10:50am

Bitmaps are not natively supported data types in GH. You can certainly store a bitmap into a generic goo instance or you can even create an entirely new goo type specifically for bitmaps.

David Rutten

david@mcneel.com

Permalink Reply by Dalia Hafiz on January 27, 2014 at 11:04am