def iahmin(f, h=1, Bc=iasecross()):
from iaaddm import iaaddm
from iasuprec import iasuprec
g = iaaddm(f, h)
y = iasuprec(g, f, Bc)
return y
def iahmin(f, h=1, Bc=iasecross()):
from iaaddm import iaaddm
from iasuprec import iasuprec
g = iaaddm(f,h)
y = iasuprec(g,f,Bc);
return y
def iaopentransf(f,
type='OCTAGON',
n=65535,
Bc=iasecross(),
Buser=iasecross()):
from iaisbinary import iaisbinary
from iabinary import iabinary
from iaisequal import iaisequal
from iaopen import iaopen
from iasesum import iasesum
from iasedisk import iasedisk
from iaaddm import iaaddm
from iagray import iagray
from iagrain import iagrain
from ialabel import ialabel
assert iaisbinary(f), 'Error: input image is not binary'
type = upper(type)
rec_flag = find(type, '-REC')
if rec_flag != -1:
type = type[:rec_flag] # remove the -rec suffix
flag = not ((type == 'OCTAGON') or (type == 'CHESSBOARD') or
(type == 'CITY-BLOCK'))
if not flag:
n = min(n, min(f.shape))
elif type == 'LINEAR-H':
se = iabinary([1, 1, 1])
n = min(n, f.shape[1])
elif type == 'LINEAR-V':
se = iabinary([[1], [1], [1]])
n = min(n, f.shape[0])
elif type == 'LINEAR-45R':
se = iabinary([[0, 0, 1], [0, 1, 0], [1, 0, 0]])
n = min(n, min(f.shape))
elif type == 'LINEAR-45L':
se = iabinary([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
n = min(n, min(f.shape))
elif type == 'USER':
se = Buser
n = min(n, min(f.shape))
else:
print 'Error: only accepts OCTAGON, CHESSBOARD, CITY-BLOCK, LINEAR-H, LINEAR-V, LINEAR-45R, LINEAR-45L, or USER as type, or with suffix -REC.'
return []
k = 0
y = uint16(zeros(f.shape))
a = iabinary([1])
z = iabinary([0])
while not (iaisequal(a, z) or (k >= n)):
print 'processing r=', k
if flag:
a = iaopen(f, iasesum(se, k))
else:
a = iaopen(f, iasedisk(k, '2D', type))
y = iaaddm(y, iagray(a, 'uint16', 1))
k = k + 1
if rec_flag != -1:
y = iagrain(ialabel(f, Bc), y, 'max')
return y
def iaopentransf(f, type='OCTAGON', n=65535, Bc=iasecross(), Buser=iasecross()):
from iaisbinary import iaisbinary
from iabinary import iabinary
from iaisequal import iaisequal
from iaopen import iaopen
from iasesum import iasesum
from iasedisk import iasedisk
from iaaddm import iaaddm
from iagray import iagray
from iagrain import iagrain
from ialabel import ialabel
assert iaisbinary(f),'Error: input image is not binary'
type = upper(type)
rec_flag = find(type,'-REC')
if rec_flag != -1:
type = type[:rec_flag] # remove the -rec suffix
flag = not ((type == 'OCTAGON') or
(type == 'CHESSBOARD') or
(type == 'CITY-BLOCK'))
if not flag:
n = min(n,min(f.shape))
elif type == 'LINEAR-H':
se = iabinary([1, 1, 1])
n = min(n,f.shape[1])
elif type =='LINEAR-V':
se = iabinary([[1],[1],[1]])
n = min(n,f.shape[0])
elif type == 'LINEAR-45R':
se = iabinary([[0, 0, 1],[0, 1, 0],[1, 0, 0]])
n = min(n,min(f.shape))
elif type == 'LINEAR-45L':
se = iabinary([[1, 0, 0],[0, 1, 0],[0, 0, 1]])
n = min(n,min(f.shape))
elif type == 'USER':
se = Buser
n = min(n,min(f.shape))
else:
print 'Error: only accepts OCTAGON, CHESSBOARD, CITY-BLOCK, LINEAR-H, LINEAR-V, LINEAR-45R, LINEAR-45L, or USER as type, or with suffix -REC.'
return []
k = 0
y = uint16(zeros(f.shape))
a = iabinary([1])
z = iabinary([0])
while not ( iaisequal(a,z) or (k>=n)):
print 'processing r=',k
if flag:
a = iaopen(f,iasesum(se,k))
else:
a = iaopen(f,iasedisk(k,'2D',type))
y = iaaddm(y, iagray(a,'uint16',1))
k = k+1
if rec_flag != -1:
y = iagrain( ialabel(f,Bc),y,'max')
return y
def iagdist(f, g, Bc=iasecross(), METRIC=None):
from ianeg import ianeg
from iagray import iagray
from iaintersec import iaintersec
from iaisequal import iaisequal
from iacero import iacero
from iaaddm import iaaddm
from iaunion import iaunion
assert METRIC is None, 'Does not support EUCLIDEAN'
fneg, gneg = ianeg(f), ianeg(g)
y = iagray(gneg, 'uint16', 1)
ero = iaintersec(y, 0)
aux = y
i = 1
while (ero != aux).any():
aux = ero
ero = iacero(gneg, fneg, Bc, i)
y = iaaddm(y, iagray(ero, 'uint16', 1))
i = i + 1
y = iaunion(y, iagray(ero, 'uint16'))
return y
def iagdist(f, g, Bc=iasecross(), METRIC=None):
from ianeg import ianeg
from iagray import iagray
from iaintersec import iaintersec
from iaisequal import iaisequal
from iacero import iacero
from iaaddm import iaaddm
from iaunion import iaunion
assert METRIC is None,'Does not support EUCLIDEAN'
fneg,gneg = ianeg(f),ianeg(g)
y = iagray(gneg,'uint16',1)
ero = iaintersec(y,0)
aux = y
i = 1
while (ero != aux).any():
aux = ero
ero = iacero(gneg,fneg,Bc,i)
y = iaaddm(y,iagray(ero,'uint16',1))
i = i + 1
y = iaunion(y,iagray(ero,'uint16'))
return y
