matlab中false的用法

首先false是逻辑零的简写形式

FALSE(N) is an N-by-N matrix of logical zeros. 是NxN逻辑零的矩阵

FALSE(M,N) or FALSE([M,N]) is an M-by-N matrix of logical zeros.是NxM逻辑零的矩阵

FALSE(..., 'like', Y) is an array of logical zeros with the same data type and sparsity as the logical array Y.与Y同类型的逻辑零矩阵

所以：

cands=false(width,height,depth, 'like', skel);意思就是创建cands逻辑零矩阵，大小与skel大小相同