This example goes through the process of creating a radial transformation such as that used to correct the "fish-eye" lens effect.
This function performs the following transformation:
r_original = p1 + p2*r_final + p3*r_final^2 + p4*r_final^3 + p5*r_final^4
The coefficients p1, p2, p3, p4, and p5 will depend on the nature of the fisheye lens used. Some may be zero.
The attached files add a mock fisheye effect to the cameraman.tif image included with MATLAB. To run the demo, type:
rundemo
at the MATLAB prompt. This file calls MAKETFORM using the custom transform included in the "radial.m" file. Instructions on how the custom transformation works are included in the comments in the files.
