def get_range(image):
minimum, maximum = c_double(), c_double()
c_call(image, ('get', 'range'), byref(minimum), byref(maximum))
return tuple(x.value / (2**magick.get_depth() - 1)
for x in (minimum, maximum))
def get_range(image):
minimum, maximum = c_double(), c_double()
c_call(image, ('get', 'range'), byref(minimum), byref(maximum))
return tuple(x.value / (2 ** magick.get_depth() - 1)
for x in (minimum, maximum))
def get_options():
options = {}
size = c_size_t()
keys = c_call('magick_', 'query_configure_options', '*', byref(size))
for key in [native_str(keys[i]) for i in range(size.value)]:
options[key] = c_call('magick_', 'query_configure_option', key)
return options
def compare(image, other, metric, factory):
if image.size != other.size:
return False
if not metric:
metric = metrics.absolute_error
metric = enum_lookup(metric, metrics)
if not factory:
factory = Image
distortion = c_double()
diff = c_call(image, ('compare', None, 'images'), other, metric,
byref(distortion))
return (factory(diff), distortion.value)
def compare(image, other, metric, factory):
if image.size != other.size:
return False
if not metric:
metric = metrics.absolute_error
metric = enum_lookup(metric, metrics)
if not factory:
factory = Image
distortion = c_double()
diff = c_call(image, ('compare', None, 'images'), other,
metric, byref(distortion))
return(factory(diff), distortion.value)
def get_blob(image, format, compression, # @ReservedAssignment
quality):
with state(image, compression=compression, compression_quality=quality):
format = format.upper() # @ReservedAssignment
old_format = c_call('magick', 'get_format', image)
c_call('magick', 'set_format', image, format)
size = c_size_t()
result = c_call(image, ('get', 'blob'), byref(size))
#from nose.tools import set_trace; set_trace()
blob = string_at(result, size.value)
c_call('magick_', 'relinquish_memory', result)
c_call('magick', 'set_format', image, old_format)
return blob
def handle_result(result, restype, args, argtypes):
if restype == c_char_p:
result = native_str(result)
if restype in (c_uint, c_ssize_t, c_size_t):
result = int(result)
elif restype == enum and not jython:
result = result.value
elif restype == MagickBoolean and not result:
exc_type = ExceptionType()
if argtypes[0] == MagickWand_p:
klass = 'magick'
elif argtypes[0] == PixelWand_p:
klass = 'pixel'
description = c_call(klass, 'get_exception', args[0], byref(exc_type))
try:
raise PystaciaException(native_str(string_at(description)))
finally:
c_call('magick_', 'relinquish_memory', description)
return result
def get_blob(
image,
format,
compression, # @ReservedAssignment
quality):
with state(image, compression=compression, compression_quality=quality):
format = format.upper() # @ReservedAssignment
old_format = c_call('magick', 'get_format', image)
c_call('magick', 'set_format', image, format)
size = c_size_t()
result = c_call(image, ('get', 'blob'), byref(size))
#from nose.tools import set_trace; set_trace()
blob = string_at(result, size.value)
c_call('magick_', 'relinquish_memory', result)
c_call('magick', 'set_format', image, old_format)
return blob
def get_hsl(color):
h, s, l = tuple(x() for x in (c_double, ) * 3)
c_call(color, 'get_hsl', byref(h), byref(s), byref(l))
return tuple(saturate(x.value) for x in (h, s, l))
def get_hsl(color):
h, s, l = tuple(x() for x in (c_double,) * 3)
c_call(color, 'get_hsl', byref(h), byref(s), byref(l))
return tuple(saturate(x.value) for x in (h, s, l))
def get_formats():
size = c_size_t()
formats = c_call('magick_', 'query_formats', '*', byref(size))
return [native_str(formats[i]).lower() for i in range(size.value)]