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cast input of image label function

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Johannes Schönberger
2012-08-10 09:10:06 +02:00
parent 8b544f2f69
commit 6ead3097c2
1 changed files with 4 additions and 4 deletions
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skimage/morphology/ccomp.pyx
+4 -4
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@@ -77,8 +77,7 @@ cdef link_bg(np.int_t *forest, np.int_t n, np.int_t *background_node):
# Connected components search as described in Fiorio et al.
def label(np.ndarray[DTYPE_t, ndim=2] input,
np.int_t neighbors=8, np.int_t background=-1):
def label(input, np.int_t neighbors=8, np.int_t background=-1):
"""Label connected regions of an integer array.
Two pixels are connected when they are neighbors and have the same value.
@@ -89,7 +88,7 @@ def label(np.ndarray[DTYPE_t, ndim=2] input,
[ ] [ ] [ ] [ ]
| \ | /
[ ]--[ ]--[ ] [ ]--[ ]--[ ]
| / | \
| / | \
[ ] [ ] [ ] [ ]
Parameters
@@ -139,7 +138,8 @@ def label(np.ndarray[DTYPE_t, ndim=2] input,
cdef np.int_t rows = input.shape[0]
cdef np.int_t cols = input.shape[1]
cdef np.ndarray[DTYPE_t, ndim=2] data = input.copy()
cdef np.ndarray[DTYPE_t, ndim=2] data = np.array(input, copy=True,
dtype=DTYPE)
cdef np.ndarray[DTYPE_t, ndim=2] forest
forest = np.arange(data.size, dtype=DTYPE).reshape((rows, cols))