qtsetblk() - Image Processing
J = qtsetblk(I, S, dim, vals) replaces
each dim-by-dim block in the
quadtree decomposition of I with the corresponding dim-by-dim block
in vals. S is the sparse matrix
returned by qtdecomp; it contains the quadtree
structure. vals is a dim-by-dim-by-k array,
where k is the number of dim-by-dim blocks
in the quadtree decomposition.
Syntax
J = qtsetblk(I, S, dim, vals)
Example
I = [1 1 1 1 2 3 6 6
1 1 2 1 4 5 6 8
1 1 1 1 10 15 7 7
1 1 1 1 20 25 7 7
20 22 20 22 1 2 3 4
20 22 22 20 5 6 7 8
20 22 20 20 9 10 11 12
22 22 20 20 13 14 15 16];
S = qtdecomp(I,5);
newvals = cat(3,zeros(4),ones(4));
J = qtsetblk(I,S,4,newvals)
Output / Return Value
Limitations
Alternatives / See Also
Reference