source: liacs/la/opdr4/xyhomproj.m@ 144

Last change on this file since 144 was 2, checked in by Rick van der Zwet, 15 years ago

Initial import of data of old repository ('data') worth keeping (e.g. tracking
means of URL access statistics)

File size: 274 bytes
Line 
1function U = xyhomproj (T)
2 % given a 4xn matrix T result of a perspective 3D projection
3 % determine 2xn matrix U by diving first 2 rows of T by 4th row
4 % thus normalizing the homogenerous coordinate to 1
5 U(1,:)=T(1,:) ./ T(4,:);
6 U(2,:)=T(2,:) ./ T(4,:);
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