def __init__(self, image_file):
'''Initialise the image structure from the given file, including a
proper model of the experiment.'''
assert(self.understand(image_file))
width, height, depth, order, bytes = FormatTIFF.get_tiff_header(
image_file)
# comment block - where the detector serial number may (or may not) be stored
# comments = bytes[1024+1440:1024+1440+512]
self._header_size = 4096
if order == FormatTIFF.LITTLE_ENDIAN:
self._I = '<I'
self._i = '<i'
self._ii = '<ii'
else:
self._I = '>I'
self._i = '>i'
self._ii = '>ii'
FormatTIFF.__init__(self, image_file)
return
def understand(image_file):
'''Check to see if this looks like an Rayonix TIFF format image,
i.e. we can make sense of it. This simply checks that records which
describe the size of the image match with the TIFF records which do
the same.'''
width, height, depth, order, bytes = FormatTIFF.get_tiff_header(
image_file)
assert(len(bytes) == 4096)
if order == FormatTIFF.LITTLE_ENDIAN:
endian = '<'
else:
endian = '>'
_I = endian + 'I'
_i = endian + 'i'
_width = struct.unpack(_I, bytes[1024 + 80:1024 + 84])[0]
_height = struct.unpack(_I, bytes[1024 + 84:1024 + 88])[0]
_depth = struct.unpack(_I, bytes[1024 + 88:1024 + 92])[0]
if width != _width or height != _height or depth != _depth:
return False
nimages = struct.unpack(_I, bytes[1024 + 112:1024 + 116])[0]
origin = struct.unpack(_I, bytes[1024 + 116:1024 + 120])[0]
orientation = struct.unpack(_I, bytes[1024 + 120:1024 + 124])[0]
view = struct.unpack(_I, bytes[1024 + 124:1024 + 128])[0]
if nimages != 1 or origin != 0 or orientation != 0 or view != 0:
return False
return True
def __init__(self, image_file, **kwargs):
'''Initialise the image structure from the given file, including a
proper model of the experiment.'''
from dxtbx import IncorrectFormatError
if not self.understand(image_file):
raise IncorrectFormatError(self, image_file)
width, height, depth, order, bytes = FormatTIFF.get_tiff_header(
image_file)
# comment block - where the detector serial number may (or may not) be stored
# comments = bytes[1024+1440:1024+1440+512]
self._header_size = 4096
if order == FormatTIFF.LITTLE_ENDIAN:
self._I = '<I'
self._i = '<i'
self._ii = '<ii'
else:
self._I = '>I'
self._i = '>i'
self._ii = '>ii'
FormatTIFF.__init__(self, image_file, **kwargs)
return
def understand(image_file):
'''Check to see if this looks like an Rayonix TIFF format image,
i.e. we can make sense of it. This simply checks that records which
describe the size of the image match with the TIFF records which do
the same.'''
width, height, depth, order, bytes = FormatTIFF.get_tiff_header(
image_file)
assert (len(bytes) == 4096)
if order == FormatTIFF.LITTLE_ENDIAN:
endian = '<'
else:
endian = '>'
_I = endian + 'I'
_i = endian + 'i'
_width = struct.unpack(_I, bytes[1024 + 80:1024 + 84])[0]
_height = struct.unpack(_I, bytes[1024 + 84:1024 + 88])[0]
_depth = struct.unpack(_I, bytes[1024 + 88:1024 + 92])[0]
if width != _width or height != _height or depth != _depth:
return False
nimages = struct.unpack(_I, bytes[1024 + 112:1024 + 116])[0]
origin = struct.unpack(_I, bytes[1024 + 116:1024 + 120])[0]
orientation = struct.unpack(_I, bytes[1024 + 120:1024 + 124])[0]
view = struct.unpack(_I, bytes[1024 + 124:1024 + 128])[0]
if nimages != 1 or origin != 0 or orientation != 0 or view != 0:
return False
return True
def __init__(self, image_file, **kwargs):
"""Initialise the image structure from the given file, including a
proper model of the experiment."""
width, height, depth, order, bytes = FormatTIFF.get_tiff_header(image_file)
# comment block - where the detector serial number may (or may not) be stored
# comments = bytes[1024+1440:1024+1440+512]
self._header_size = 4096
if order == FormatTIFF.LITTLE_ENDIAN:
self._I = "<I"
self._i = "<i"
self._ii = "<ii"
else:
self._I = ">I"
self._i = ">i"
self._ii = ">ii"
super(FormatTIFFRayonix, self).__init__(image_file, **kwargs)
def understand(image_file):
"""Check to see if this looks like an Rayonix TIFF format image,
i.e. we can make sense of it. This simply checks that records which
describe the size of the image match with the TIFF records which do
the same."""
width, height, depth, order, bytes = FormatTIFF.get_tiff_header(
image_file)
if len(bytes) != 4096:
return False
if order == FormatTIFF.LITTLE_ENDIAN:
endian = "<"
else:
endian = ">"
_I = endian + "I"
_i = endian + "i"
_width = struct.unpack(_I, bytes[1024 + 80:1024 + 84])[0]
_height = struct.unpack(_I, bytes[1024 + 84:1024 + 88])[0]
_depth = struct.unpack(_I, bytes[1024 + 88:1024 + 92])[0]
if width != _width or height != _height or depth != _depth:
return False
# pretty sure all MARCCD / Rayonix detectors are square...
if width != height:
return False
nimages = struct.unpack(_I, bytes[1024 + 112:1024 + 116])[0]
origin = struct.unpack(_I, bytes[1024 + 116:1024 + 120])[0]
orientation = struct.unpack(_I, bytes[1024 + 120:1024 + 124])[0]
view = struct.unpack(_I, bytes[1024 + 124:1024 + 128])[0]
if nimages != 1 or origin != 0 or orientation != 0 or view != 0:
return False
return True
