def iadist(f, Bc=iasecross(), METRIC=None):
from iagray import iagray
from iaintersec import iaintersec
from iaisequal import iaisequal
from iaero import iaero
from iasebox import iasebox
if METRIC is not None:
METRIC = upper(METRIC)
f = iagray(f, "uint16")
y = iaintersec(f, 0)
if (METRIC == "EUCLIDEAN") or (METRIC == "EUC2"):
f = int32(f)
b = int32(zeros((3, 3)))
i = 1
while any(f != y):
a4, a2 = -4 * i + 2, -2 * i + 1
b = int32([[a4, a2, a4], [a2, 0, a2], [a4, a2, a4]])
y = f
i = i + 1
f = iaero(f, b)
if METRIC == "EUCLIDEAN":
y = uint16(sqrt(f) + 0.5)
else:
if iaisequal(Bc, iasecross()):
b = int32([[-2147483647, -1, -2147483647], [-1, 0, -1], [-2147483647, -1, -2147483647]])
elif iaisequal(Bc, iasebox()):
b = int32([[-1, -1, -1], [-1, 0, -1], [-1, -1, -1]])
else:
b = Bc
while any(f != y):
y = f
f = iaero(f, b)
return y
def iadist(f, Bc=iasecross(), METRIC=None):
from iagray import iagray
from iaintersec import iaintersec
from iaisequal import iaisequal
from iaero import iaero
from iasebox import iasebox
if METRIC is not None: METRIC = METRIC.upper()
f = iagray(f, 'uint16')
y = iaintersec(f, 0)
if (METRIC == 'EUCLIDEAN') or (METRIC == 'EUC2'):
f = int32(f)
b = int32(zeros((3, 3)))
i = 1
while any(f != y):
a4, a2 = -4 * i + 2, -2 * i + 1
b = int32([[a4, a2, a4], [a2, 0, a2], [a4, a2, a4]])
y = f
i = i + 1
f = iaero(f, b)
if METRIC == 'EUCLIDEAN':
y = uint16(sqrt(f) + 0.5)
else:
if iaisequal(Bc, iasecross()):
b = int32([[-2147483647, -1, -2147483647], [-1, 0, -1],
[-2147483647, -1, -2147483647]])
elif iaisequal(Bc, iasebox()):
b = int32([[-1, -1, -1], [-1, 0, -1], [-1, -1, -1]])
else:
b = Bc
while any(f != y):
y = f
f = iaero(f, b)
return y
def iais(f1, oper, f2=None, oper1=None, f3=None):
from iaisbinary import iaisbinary
from iaisequal import iaisequal
from iaislesseq import iaislesseq
from ianeg import ianeg
from iathreshad import iathreshad
from iabinary import iabinary
if f2 == None:
oper=upper(oper);
if oper == 'BINARY': return iaisbinary(f1)
elif oper == 'GRAY' : return not iaisbinary(f1)
else:
assert 0,'oper should be BINARY or GRAY, was'+oper
elif oper == '==': y = iaisequal(f1, f2)
elif oper == '~=': y = not iaisequal(f1,f2)
elif oper == '<=': y = iaislesseq(f1,f2)
elif oper == '>=': y = iaislesseq(f2,f1)
elif oper == '>': y = iaisequal( ianeg( iathreshad(f2,f1)),iabinary(1))
elif oper == '<': y = iaisequal( ianeg( iathreshad(f1,f2)),iabinary(1))
else:
assert 0,'oper must be one of: ==, ~=, >, >=, <, <=, it was:'+oper
if oper1 != None:
if oper1 == '==': y = y and iaisequal(f2,f3)
elif oper1 == '~=': y = y and (not iaisequal(f2,f3))
elif oper1 == '<=': y = y and iaislesseq(f2,f3)
elif oper1 == '>=': y = y and iaislesseq(f3,f2)
elif oper1 == '>': y = y and iaisequal( ianeg( iathreshad(f3,f2)),iabinary(1))
elif oper1 == '<': y = y and iaisequal( ianeg( iathreshad(f2,f3)),iabinary(1))
else:
assert 0,'oper1 must be one of: ==, ~=, >, >=, <, <=, it was:'+oper1
return y
def iaskelm(f, B=iasecross(), option="binary"):
from iaisbinary import iaisbinary
from ialimits import ialimits
from iagray import iagray
from iaintersec import iaintersec
from iasesum import iasesum
from iaero import iaero
from iaisequal import iaisequal
from iaopenth import iaopenth
from iasedil import iasedil
from iaunion import iaunion
from iabinary import iabinary
from iapad import iapad
from iaunpad import iaunpad
assert iaisbinary(f),'Input binary image only'
option = upper(option)
f = iapad(f,B)
print f
k1,k2 = ialimits(f)
y = iagray( iaintersec(f, k1),'uint16')
iszero = asarray(y)
nb = iasesum(B,0)
for r in range(1,65535):
ero = iaero( f, nb)
if iaisequal(ero, iszero): break
f1 = iaopenth( ero, B)
nb = iasedil(nb, B)
y = iaunion(y, iagray(f1,'uint16',r))
if option == 'BINARY':
y = iabinary(y)
y = iaunpad(y,B)
return y
def iathick(f, Iab=None, n=-1, theta=45, DIRECTION="CLOCKWISE"):
from iaisbinary import iaisbinary
from iaintersec import iaintersec
from iasupgen import iasupgen
from iainterot import iainterot
from iaunion import iaunion
from iaisequal import iaisequal
from iahomothick import iahomothick
if Iab is None:
Iab = iahomothick()
DIRECTION = upper(DIRECTION)
assert iaisbinary(f), 'f must be binary image'
if n == -1: n = product(f.shape)
y = f
zero = iaintersec(f, 0)
for i in range(n):
aux = zero
for t in range(0, 360, theta):
sup = iasupgen(y, iainterot(Iab, t, DIRECTION))
aux = iaunion(aux, sup)
y = iaunion(y, sup)
if iaisequal(aux, zero): break
return y
def iaskelm(f, B=iasecross(), option="binary"):
from iaisbinary import iaisbinary
from ialimits import ialimits
from iagray import iagray
from iaintersec import iaintersec
from iasesum import iasesum
from iaero import iaero
from iaisequal import iaisequal
from iaopenth import iaopenth
from iasedil import iasedil
from iaunion import iaunion
from iabinary import iabinary
from iapad import iapad
from iaunpad import iaunpad
assert iaisbinary(f), 'Input binary image only'
option = upper(option)
f = iapad(f, B)
print f
k1, k2 = ialimits(f)
y = iagray(iaintersec(f, k1), 'uint16')
iszero = asarray(y)
nb = iasesum(B, 0)
for r in range(1, 65535):
ero = iaero(f, nb)
if iaisequal(ero, iszero): break
f1 = iaopenth(ero, B)
nb = iasedil(nb, B)
y = iaunion(y, iagray(f1, 'uint16', r))
if option == 'BINARY':
y = iabinary(y)
y = iaunpad(y, B)
return y
def iathick(f, Iab=None, n=-1, theta=45, DIRECTION="CLOCKWISE"):
from iaisbinary import iaisbinary
from iaintersec import iaintersec
from iasupgen import iasupgen
from iainterot import iainterot
from iaunion import iaunion
from iaisequal import iaisequal
from iahomothick import iahomothick
if Iab is None:
Iab = iahomothick()
DIRECTION = upper(DIRECTION)
assert iaisbinary(f),'f must be binary image'
if n == -1: n = product(f.shape)
y = f
zero = iaintersec(f,0)
for i in range(n):
aux = zero
for t in range(0,360,theta):
sup = iasupgen( y, iainterot(Iab, t, DIRECTION))
aux = iaunion( aux, sup)
y = iaunion( y, sup)
if iaisequal(aux,zero): break
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 iacdil(f, g, b=iasecross(), n=1):
from iaintersec import iaintersec
from iadil import iadil
from iaisequal import iaisequal
y = iaintersec(f,g)
for i in xrange(n):
aux = y
y = iaintersec( iadil(y,b),g)
if iaisequal(y,aux): break
return y
def iacero(f, g, b=iasecross(), n=1):
from iaunion import iaunion
from iaero import iaero
from iaisequal import iaisequal
y = iaunion(f,g)
for i in range(n):
aux = y
y = iaunion( iaero(y,b),g)
if iaisequal(y,aux): break
return y
def iacdil(f, g, b=iasecross(), n=1):
from iaintersec import iaintersec
from iadil import iadil
from iaisequal import iaisequal
y = iaintersec(f, g)
for i in range(n):
aux = y
y = iaintersec(iadil(y, b), g)
if iaisequal(y, aux): break
return y
def iacero(f, g, b=iasecross(), n=1):
from iaunion import iaunion
from iaero import iaero
from iaisequal import iaisequal
y = iaunion(f, g)
for i in range(n):
aux = y
y = iaunion(iaero(y, b), g)
if iaisequal(y, aux): break
return y
def iais(f1, oper, f2=None, oper1=None, f3=None):
from iaisbinary import iaisbinary
from iaisequal import iaisequal
from iaislesseq import iaislesseq
from ianeg import ianeg
from iathreshad import iathreshad
from iabinary import iabinary
if f2 == None:
oper = upper(oper)
if oper == "BINARY":
return iaisbinary(f1)
elif oper == "GRAY":
return not iaisbinary(f1)
else:
assert 0, "oper should be BINARY or GRAY, was" + oper
elif oper == "==":
y = iaisequal(f1, f2)
elif oper == "~=":
y = not iaisequal(f1, f2)
elif oper == "<=":
y = iaislesseq(f1, f2)
elif oper == ">=":
y = iaislesseq(f2, f1)
elif oper == ">":
y = iaisequal(ianeg(iathreshad(f2, f1)), iabinary(1))
elif oper == "<":
y = iaisequal(ianeg(iathreshad(f1, f2)), iabinary(1))
else:
assert 0, "oper must be one of: ==, ~=, >, >=, <, <=, it was:" + oper
if oper1 != None:
if oper1 == "==":
y = y and iaisequal(f2, f3)
elif oper1 == "~=":
y = y and (not iaisequal(f2, f3))
elif oper1 == "<=":
y = y and iaislesseq(f2, f3)
elif oper1 == ">=":
y = y and iaislesseq(f3, f2)
elif oper1 == ">":
y = y and iaisequal(ianeg(iathreshad(f3, f2)), iabinary(1))
elif oper1 == "<":
y = y and iaisequal(ianeg(iathreshad(f2, f3)), iabinary(1))
else:
assert 0, "oper1 must be one of: ==, ~=, >, >=, <, <=, it was:" + oper1
return y
def iacenter(f, b=None):
from iaasf import iaasf
from iaunion import iaunion
from iaintersec import iaintersec
from iaisequal import iaisequal
from iasecross import iasecross
if b is None:
b = iasecross(None)
y = f
diff = 0
while not diff:
aux = y
beta1 = iaasf(y, 'COC', b, 1)
beta2 = iaasf(y, 'OCO', b, 1)
y = iaunion(iaintersec(y, beta1), beta2)
diff = iaisequal(aux, y)
return y
def iacenter(f, b=None):
from iaasf import iaasf
from iaunion import iaunion
from iaintersec import iaintersec
from iaisequal import iaisequal
from iasecross import iasecross
if b is None:
b = iasecross(None)
y = f
diff = 0
while not diff:
aux = y
beta1 = iaasf(y,'COC',b,1)
beta2 = iaasf(y,'OCO',b,1)
y = iaunion( iaintersec(y,beta1),beta2)
diff = iaisequal(aux,y)
return y
def iacthin(f, g, Iab=None, n=-1, theta=45, DIRECTION="CLOCKWISE"):
from iaisbinary import iaisbinary
from iasupgen import iasupgen
from iainterot import iainterot
from iaunion import iaunion
from iasubm import iasubm
from iaisequal import iaisequal
from iahomothin import iahomothin
if Iab is None:
Iab = iahomothin()
DIRECTION = upper(DIRECTION)
assert iaisbinary(f),'f must be binary image'
if n == -1: n = product(f.shape)
y = f
old = y
for i in range(n):
for t in range(0,360,theta):
sup = iasupgen( y, iainterot(Iab, t, DIRECTION))
y = iaunion( iasubm( y, sup),g)
if iaisequal(old,y): break
old = y
return y
