detect.py 文件源码

python
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项目:ASTRiDE 作者: dwkim78 项目源码 文件源码
def __init__(self, filename, remove_bkg='constant', bkg_box_size=50,
                 contour_threshold=3., min_points=10, shape_cut=0.2,
                 area_cut=10., radius_dev_cut=0.5, connectivity_angle=3.,
                 output_path=None):
        hdulist = fits.open(filename)
        raw_image = hdulist[0].data.astype(np.float64)
        hdulist.close()

        # Raw image.
        self.raw_image = raw_image
        # Background structure and background map
        self._bkg = None
        self.background_map = None
        # Background removed image.
        self.image = None
        # Raw edges
        self.raw_borders = None
        # Filtered edges, so streak, by their morphologies and
        # also connected (i.e. linked) by their slope.
        self.streaks = None
        # Statistics for the image data.
        self._med = None
        self._std = None

        # Other variables.
        remove_bkg_options = ('constant', 'map')
        if remove_bkg not in remove_bkg_options:
            raise RuntimeError('"remove_bkg" must be the one among: %s' %
                               ', '.join(remove_bkg_options))
        self.remove_bkg = remove_bkg
        self.bkg_box_size = bkg_box_size
        self.contour_threshold = contour_threshold

        # These variables for the edge detections and linking.
        self.min_points = min_points
        self.shape_cut = shape_cut
        self.area_cut = area_cut
        self.radius_dev_cut = radius_dev_cut
        self.connectivity_angle = connectivity_angle

        # Set output path.
        if output_path is None:
            output_path = './%s/' % \
                          ('.'.join(os.path.basename(filename).split('.')[:-1]))
        if output_path[-1] != '/':
            output_path += '/'
        self.output_path = output_path

        # For plotting.
        pl.rcParams['figure.figsize'] = [12, 9]
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