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⇤ ← Revision 1 as of 2006-11-12 12:54:32
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| == Reading Into Matlab == [v, L, ct] = read_annotation(annotation_filename); |
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| Suppose N is the number of vertices. Then, v = N x 1 vector, v(i) = i-1 (you can usually ignore v) L = N x 1 vector, L(i) = label of ith vertex of mesh ct = colortable structure === What is a colortable? === The colortable matches the label with the structure name. It also gives color to each structure type. In matlab, the colortable structure can be dissected as follows. ct.numEntries = # structures that are specified (scalar) ct.orig_tab = where original colortable was found (string). It's mainly for book-keeping ct.struct_names = list of structure names (cell). The number of strings should be equal to the number of entries. For example, ct.struct_names{1} could be 'central sulcus' ct.table = ct.numEntries x 5 matrix |
An annotation file contains labels of a surface, for example the sulci and gyri labels of a cortical surface.
Reading Into Matlab
[v, L, ct] = read_annotation(annotation_filename);
Suppose N is the number of vertices. Then,
v = N x 1 vector, v(i) = i-1 (you can usually ignore v) L = N x 1 vector, L(i) = label of ith vertex of mesh ct = colortable structure
What is a colortable?
The colortable matches the label with the structure name. It also gives color to each structure type. In matlab, the colortable structure can be dissected as follows.
ct.numEntries = # structures that are specified (scalar)
ct.orig_tab = where original colortable was found (string). It's mainly for book-keeping
ct.struct_names = list of structure names (cell). The number of strings should be equal to the number of entries. For example, ct.struct_names{1} could be 'central sulcus'
ct.table = ct.numEntries x 5 matrix