def __init__(self, compressor_id, early_config, compressor_config, name):
"""wrapper for a libpressio compressor object
params:
compressor_id: str - the compressor_id for the underlying compressor
early_config: dict - converted to pressio_options to configure the structure of the compressor
compressor_config: dict - converted to pressio_options to configure the compressor
name: str - name to use for the compressor when used in a hierarchical mode
"""
try:
library = pressio.instance()
self._compressor = pressio.get_compressor(library,
compressor_id.encode())
if self._compressor is None:
raise PressioException.from_library(library)
if name is not None:
pressio.compressor_set_name(self._compressor, name.encode())
early_config_lp = _python_to_pressio(early_config)
pressio.compressor_set_options(self._compressor, early_config_lp)
pressio.options_free(early_config_lp)
config_lp = pressio.compressor_get_options(self._compressor)
config_lp = _python_to_pressio(compressor_config, config_lp)
pressio.compressor_set_options(self._compressor, config_lp)
pressio.options_free(config_lp)
finally:
pressio.release(library)
#open image get path from array
im = Image.open(imgs, 'r')
#DO I CARE ABOUT THIS ANYMORE?
OutputID = re.findall("(\d+)", imgs)
#load images
pix_vals = im.load()
width, height = im.size
#Create Datasets From Image For extrapolation
intArray = []
intArray = createIntArray(pix_vals, width, height)
floatArray = createFloatArray(intArray, width, height)
library = pressio.instance()
compressor = pressio.get_compressor(library, b"sz")
sz_options = pressio.compressor_get_options(compressor)
metric_ids = pressio.vector_string([b'time', b'size'])
metrics = pressio.new_metrics(library, metric_ids)
pressio.options_set_integer(sz_options, b"sz:error_bound_mode", sz.PSNR)
pressio.options_set_double(sz_options, b"sz:psnr_err_bound",
float(sys.argv[1]))
pressio.compressor_check_options(compressor, sz_options)
pressio.compressor_set_options(compressor, sz_options)
pressio.compressor_set_metrics(compressor, metrics)
input_data = pressio.io_data_from_numpy(floatArray)
compressed_data = pressio.data_new_empty(pressio.byte_dtype,