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[diderot] Diff of /branches/pure-cfg/TODO
 [diderot] / branches / pure-cfg / TODO

# Diff of /branches/pure-cfg/TODO

revision 949, Fri Apr 22 19:20:24 2011 UTC revision 950, Fri Apr 22 19:27:39 2011 UTC
# Line 79  Line 79
79  in vector field feature exraction  in vector field feature exraction
80  Related to this and possibly simpler:  Related to this and possibly simpler:
82    field#1(2)[] Vlen = |Vimg ⊛ ctmr|;    field#0(2)[] Vlen = |Vimg ⊛ bspln3|;
83  to get a scalar field of vector length, or  to get a scalar field of vector length, or
84    field#1(2)[] F = Fimg ⊛ ctmr;    field#2(2)[] F = Fimg ⊛ bspln3;
85    field#1(2)[] Gmag = |∇F|;    field#0(2)[] Gmag = |∇F|;
86  to get a scalar field of gradient magnitude, or  to get a scalar field of gradient magnitude, or
87    field#1(2)[] F = Fimg ⊛ ctmr;    field#2(2)[] F = Fimg ⊛ bspln3;
88    field#1(2)[] Gmsq = ∇F•∇F;    field#0(2)[] Gmsq = ∇F•∇F;
89  to get a scalar field of squared gradient magnitude  to get a scalar field of squared gradient magnitude, which is simpler
90  (which is simpler to differentiate)  to differentiate.  Again, though, it would be such a benefit to have
91    these expressions, without any differentiability.  Hence my indication
92    of "field#0" for these above.
93
94  ability to declare a field in such a way so that probe  ability to declare a field in such a way so that probe
95  positions are *always* clamped to the support of "inside";  positions are *always* clamped to the support of "inside";

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