def process_image(input, **kwargs):
"""Run a standard analysis and returns the associated Image object.
The input can be a FITS or CASA image, a PyBDSF parameter save
file, or a dictionary of options. Partial names are allowed for the
parameters as long as they are unique. Parameters are set to default
values if par = ''.
Examples:
> img = bdsf.process_image('example.fits', thresh_isl=4)
--> process FITS image names 'example.fits'
> img_3C196 = bdsf.process_image('3C196.image', mea='map')
--> process CASA image, 'mean_map' parameter is abbreviated
> img_VirA = bdsf.process_image('VirA_im.pybdsf.sav')
--> load parameter save file and process
"""
from interface import load_pars
from image import Image
import os
# Try to load input assuming it's a parameter save file or a dictionary.
# load_pars returns None if this doesn't work.
img, err = load_pars(input)
# If load_pars fails (returns None), assume that input is an image file. If it's not a
# valid image file (but is an existing file), an error will be raised
# by img.process() during reading of the file.
if img is None:
if os.path.exists(input):
img = Image({'filename': input})
else:
raise RuntimeError("File '" + input + "' not found.")
# Now process it. Any kwargs specified by the user will
# override those read in from the parameter save file or dictionary.
img.process(**kwargs)
return img
def process_image(input, **kwargs):
"""Run a standard analysis and returns the associated Image object.
The input can be a FITS or CASA image, a PyBDSM parameter save
file, or a dictionary of options. Partial names are allowed for the
parameters as long as they are unique. Parameters are set to default
values if par = ''.
Examples:
> img = bdsm.process_image('example.fits', thresh_isl=4)
--> process FITS image names 'example.fits'
> img_3C196 = bdsm.process_image('3C196.image', mea='map')
--> process CASA image, 'mean_map' parameter is abbreviated
> img_VirA = bdsm.process_image('VirA_im.pybdsm.sav')
--> load parameter save file and process
"""
from interface import load_pars
from image import Image
import os
# Try to load input assuming it's a parameter save file or a dictionary.
# load_pars returns None if this doesn't work.
img, err = load_pars(input)
# If load_pars fails (returns None), assume that input is an image file. If it's not a
# valid image file (but is an existing file), an error will be raised
# by img.process() during reading of the file.
if img == None:
if os.path.exists(input):
img = Image({'filename': input})
else:
raise RuntimeError("File '" + input + "' not found.")
# Now process it. Any kwargs specified by the user will
# override those read in from the parameter save file or dictionary.
img.process(**kwargs)
return img
def load_pars(self, loadfile=None):
"""Load parameter values."""
import interface
import os
if loadfile is None or loadfile == '':
loadfile = self.opts.filename + '.pybdsm.sav'
if os.path.exists(loadfile):
timg, err = interface.load_pars(loadfile)
if timg is not None:
orig_filename = self.opts.filename
self.opts = timg.opts
self.opts.filename = orig_filename # reset filename to original
else:
if self._is_interactive_shell:
print "\n\033[31;1mERROR\033[0m: '"+\
loadfile+"' is not a valid parameter save file."
else:
raise RuntimeError(str(err))
else:
if self._is_interactive_shell:
print "\n\033[31;1mERROR\033[0m: File '"+\
loadfile+"' not found."
else:
raise RuntimeError('File not found')
def load_pars(self, loadfile=None):
"""Load parameter values."""
import interface
import os
if loadfile is None or loadfile == '':
loadfile = self.opts.filename + '.pybdsf.sav'
if os.path.exists(loadfile):
timg, err = interface.load_pars(loadfile)
if timg is not None:
orig_filename = self.opts.filename
self.opts = timg.opts
self.opts.filename = orig_filename # reset filename to original
else:
if self._is_interactive_shell:
print "\n\033[31;1mERROR\033[0m: '"+\
loadfile+"' is not a valid parameter save file."
else:
raise RuntimeError(str(err))
else:
if self._is_interactive_shell:
print "\n\033[31;1mERROR\033[0m: File '"+\
loadfile+"' not found."
else:
raise RuntimeError('File not found')
