Esempio n. 1
0
class Modeller(object):

  def __init__(self, beam, detector,
               min_count=5, nsigma=6, sigma=0.5,
               kernel_size=9, niter=10):
    from dials.algorithms.background.gmodel import PixelFilter

    self.beam = beam
    self.detector = detector

    self.min_count = min_count
    self.nsigma = nsigma
    self.sigma = sigma
    self.kernel_size = kernel_size
    self.niter = niter

    width, height = detector[0].get_image_size()

    self._filter = PixelFilter(height, width)

    self.detector_mask = None

  def add_image(self, frame, image, mask, reflections):

    height, width = image.all()

    _,_,_,_,z0,z1 = reflections['bbox'].parts()
    selection = (z0 <= frame) & (z1 > frame)
    subset = reflections.select(selection)
    sbox_mask = subset['shoebox'].apply_background_mask(frame, 1, (height, width))

    if self.detector_mask is None:
      self.detector_mask = mask

    mask = mask & sbox_mask

    self._filter.add(image, mask)

  def compute(self):
    from dials.algorithms.background.gmodel import FillGaps
    from dials.algorithms.image.fill_holes import simple_fill
    result = self._filter.compute(self.min_count, self.nsigma)

    data = result.data()
    mask = result.mask()

    data = simple_fill(data, mask)

    fill = FillGaps(self.beam, self.detector[0])

    mask = mask.as_1d().as_int()
    mask = mask - (~self.detector_mask).as_1d().as_int()
    mask.reshape(data.accessor())

    fill(data, mask, self.sigma, self.kernel_size, self.niter)

    return data
Esempio n. 2
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    def __init__(self,
                 beam,
                 detector,
                 min_count=5,
                 nsigma=6,
                 sigma=0.5,
                 kernel_size=9,
                 niter=10):
        from dials.algorithms.background.gmodel import PixelFilter

        self.beam = beam
        self.detector = detector

        self.min_count = min_count
        self.nsigma = nsigma
        self.sigma = sigma
        self.kernel_size = kernel_size
        self.niter = niter

        width, height = detector[0].get_image_size()

        self._filter = PixelFilter(height, width)

        self.detector_mask = None
Esempio n. 3
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  def __init__(self, beam, detector,
               min_count=5, nsigma=6, sigma=0.5,
               kernel_size=9, niter=10):
    from dials.algorithms.background.gmodel import PixelFilter

    self.beam = beam
    self.detector = detector

    self.min_count = min_count
    self.nsigma = nsigma
    self.sigma = sigma
    self.kernel_size = kernel_size
    self.niter = niter

    width, height = detector[0].get_image_size()

    self._filter = PixelFilter(height, width)

    self.detector_mask = None
Esempio n. 4
0
class Modeller:
    def __init__(self,
                 beam,
                 detector,
                 min_count=5,
                 nsigma=6,
                 sigma=0.5,
                 kernel_size=9,
                 niter=10):
        from dials.algorithms.background.gmodel import PixelFilter

        self.beam = beam
        self.detector = detector

        self.min_count = min_count
        self.nsigma = nsigma
        self.sigma = sigma
        self.kernel_size = kernel_size
        self.niter = niter

        width, height = detector[0].get_image_size()

        self._filter = PixelFilter(height, width)

        self.detector_mask = None

    def add_image(self, frame, image, mask, reflections):

        height, width = image.all()

        _, _, _, _, z0, z1 = reflections["bbox"].parts()
        selection = (z0 <= frame) & (z1 > frame)
        subset = reflections.select(selection)
        sbox_mask = subset["shoebox"].apply_background_mask(
            frame, 1, (height, width))

        if self.detector_mask is None:
            self.detector_mask = mask

        mask = mask & sbox_mask

        self._filter.add(image, mask)

    def compute(self):
        from dials.algorithms.background.gmodel import FillGaps
        from dials.algorithms.image.fill_holes import simple_fill

        result = self._filter.compute(self.min_count, self.nsigma)

        data = result.data()
        mask = result.mask()

        data = simple_fill(data, mask)

        fill = FillGaps(self.beam, self.detector[0])

        mask = mask.as_1d().as_int()
        mask = mask - (~self.detector_mask).as_1d().as_int()
        mask.reshape(data.accessor())

        fill(data, mask, self.sigma, self.kernel_size, self.niter)

        return data