mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-29 16:32:32 +08:00
Stefan van der Walt
35 lines
1.1 KiB
Cython
35 lines
1.1 KiB
Cython
# -*- python -*-
|
|
|
|
import _mcp
|
|
cimport _mcp
|
|
|
|
cdef extern from "math.h":
|
|
double fabs(double f)
|
|
|
|
cdef class MCP_Diff(_mcp.MCP):
|
|
"""MCP_Diff(costs, offsets=None, fully_connected=True)
|
|
|
|
Find minimum-difference paths through an n-d costs array.
|
|
|
|
See the documentation for MCP for full details. This class differs from
|
|
MCP in that the cost of a path is not simply the sum of the costs along
|
|
that path.
|
|
|
|
This class instead assumes that the cost of moving from one point to
|
|
another is the absolute value of the difference in the costs between the
|
|
two points.
|
|
|
|
"""
|
|
def __init__(self, costs, offsets=None, fully_connected=True):
|
|
"""__init__(costs, offsets=None, fully_connected=True)
|
|
|
|
See class documentation.
|
|
"""
|
|
_mcp.MCP.__init__(self, costs, offsets, fully_connected)
|
|
self.use_start_cost = 0
|
|
|
|
cdef _mcp.FLOAT_C _travel_cost(self, _mcp.FLOAT_C old_cost,
|
|
_mcp.FLOAT_C new_cost,
|
|
_mcp.FLOAT_C offset_length):
|
|
return fabs(old_cost - new_cost)
|