fisheyeang

The fisheyeang function creates \vartheta, \rho and \Omega angle matrices with equi-angluar projection (as used in LUMOS) for a given fisheye image resolution.

Usage:

[theta, rho, omega] = fisheyeang(reso,hor_angle)

Where:

Parameter	Description
theta	Is the returned rotation angle matrix in °.
rho	Is the returned tilt angle matrix to the optical axis (image center) in °.
Omega	Is the returned pixel-wise solid angle matrix in sr.
reso	Defines the image resolution, default: 500 \times 500 pixel.
hor_angle	Defines the horizontal opening angle, default: 180°

Examples:

Create \vartheta, \rho and \Omega angle matrices with default settings:

[theta, rho, omega] = fisheyeang;
contourf(rho,[0:10:90])
colorbar
axis equal off

Result:

Create \vartheta, \rho and \Omega angle matrices with resulting resolution of 500 x 1000 pixel and 120° horizontal opening angle:

[theta, rho, omega] = fisheyeang([500 1000],120);
contourf(rho,[0:10:90])
colorbar
axis equal off

Result:

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