Vignetting
Illustrate the optical fall off with field height, modeled by cos4th.
Contents
Large field of view scene
scene = sceneCreate('uniform d65',512); scene = sceneSet(scene,'fov',80); % Diffraction limited shift-invariant optics oi = oiCreate('shift invariant'); focalLength = oiGet(oi,'optics focallength'); oi = oiCompute(oi,scene); sz = oiGet(oi,'size'); oiPlot(oi,'illuminance hline',[1,sz(2)/2]); oiWindow(oi); oi = oiSet(oi,'optics focallength', 4*focalLength); oi = oiCompute(oi,scene); oiPlot(oi,'illuminance hline',[1,sz(2)/2]); oiWindow(oi); [uData,fig] = oiPlot(oi,'illuminance hline',[1,20]); ax = gca; ax.Children.Color = [0 0 0];
