Ejemplo n.º 1
0
def copy_gaussians(img, isl1, isl2):
    """Copies Gaussians from isl2 to isl1

    img.gaussians is also updated
    """
    if img.ngaus == 0:
        gaus_id = -1
    else:
        gaus_id = img.gaussians[-1].gaus_num
    for g in isl2.gaul:
        gaus_id += 1
        gcp = Gaussian(img, g.parameters[:], isl1.island_id, gaus_id)
        gcp.gaus_num = gaus_id
        gcp.jlevel = g.jlevel
        isl1.gaul.append(gcp)
        img.ngaus += 1
        img.gaussians.append(gcp)
Ejemplo n.º 2
0
def copy_gaussians(img, isl1, isl2):
    """Copies Gaussians from isl2 to isl1

    img.gaussians is also updated
    """
    if img.ngaus == 0:
        gaus_id = -1
    else:
        gaus_id = img.gaussians[-1].gaus_num
    for g in isl2.gaul:
        gaus_id += 1
        gcp = Gaussian(img, g.parameters[:], isl1.island_id, gaus_id)
        gcp.gaus_num = gaus_id
        gcp.jlevel = g.jlevel
        isl1.gaul.append(gcp)
        img.ngaus += 1
        img.gaussians.append(gcp)
Ejemplo n.º 3
0
    def __call__(self, img):

        mylog = mylogger.logging.getLogger("PyBDSM." + img.log + "Wavelet")

        if img.opts.atrous_do:
            if img.nisl == 0:
                mylog.warning(
                    "No islands found. Skipping wavelet decomposition.")
                img.completed_Ops.append('wavelet_atrous')
                return

            mylog.info(
                "Decomposing gaussian residual image into a-trous wavelets")
            bdir = img.basedir + '/wavelet/'
            if img.opts.output_all:
                if not os.path.isdir(bdir): os.makedirs(bdir)
                if not os.path.isdir(bdir + '/residual/'):
                    os.makedirs(bdir + '/residual/')
                if not os.path.isdir(bdir + '/model/'):
                    os.makedirs(bdir + '/model/')
            dobdsm = img.opts.atrous_bdsm_do
            filter = {
                'tr': {
                    'size': 3,
                    'vec': [1. / 4, 1. / 2, 1. / 4],
                    'name': 'Triangle'
                },
                'b3': {
                    'size': 5,
                    'vec': [1. / 16, 1. / 4, 3. / 8, 1. / 4, 1. / 16],
                    'name': 'B3 spline'
                }
            }

            if dobdsm: wchain, wopts = self.setpara_bdsm(img)

            n, m = img.ch0_arr.shape

            # Calculate residual image that results from normal (non-wavelet) Gaussian fitting
            Op_make_residimage()(img)
            resid = img.resid_gaus_arr

            lpf = img.opts.atrous_lpf
            if lpf not in ['b3', 'tr']: lpf = 'b3'
            jmax = img.opts.atrous_jmax
            l = len(filter[lpf]['vec']
                    )  # 1st 3 is arbit and 2nd 3 is whats expected for a-trous
            if jmax < 1 or jmax > 15:  # determine jmax
                # Check if largest island size is
                # smaller than 1/3 of image size. If so, use it to determine jmax.
                min_size = min(resid.shape)
                max_isl_shape = (0, 0)
                for isl in img.islands:
                    if isl.image.shape[0] * isl.image.shape[1] > max_isl_shape[
                            0] * max_isl_shape[1]:
                        max_isl_shape = isl.image.shape
                if max_isl_shape != (
                        0, 0) and min(max_isl_shape) < min(resid.shape) / 3.0:
                    min_size = min(max_isl_shape) * 4.0
                else:
                    min_size = min(resid.shape)
                jmax = int(
                    floor(
                        log((min_size / 3.0 * 3.0 - l) /
                            (l - 1) + 1) / log(2.0) + 1.0)) + 1
                if min_size * 0.55 <= (l + (l - 1) * (2**(jmax) - 1)):
                    jmax = jmax - 1
            img.wavelet_lpf = lpf
            img.wavelet_jmax = jmax
            mylog.info("Using " + filter[lpf]['name'] +
                       ' filter with J_max = ' + str(jmax))

            img.atrous_islands = []
            img.atrous_gaussians = []
            img.atrous_sources = []
            img.atrous_opts = []
            img.resid_wavelets_arr = cp(img.resid_gaus_arr)

            im_old = img.resid_wavelets_arr
            total_flux = 0.0
            ntot_wvgaus = 0
            stop_wav = False
            pix_masked = N.where(N.isnan(resid) == True)
            jmin = 1
            if img.opts.ncores is None:
                numcores = 1
            else:
                numcores = img.opts.ncores
            for j in range(jmin, jmax +
                           1):  # extra +1 is so we can do bdsm on cJ as well
                mylogger.userinfo(mylog, "\nWavelet scale #" + str(j))
                im_new = self.atrous(im_old,
                                     filter[lpf]['vec'],
                                     lpf,
                                     j,
                                     numcores=numcores,
                                     use_scipy_fft=img.opts.use_scipy_fft)
                im_new[
                    pix_masked] = N.nan  # since fftconvolve wont work with blanked pixels
                if img.opts.atrous_sum:
                    w = im_new
                else:
                    w = im_old - im_new
                im_old = im_new
                suffix = 'w' + ` j `
                filename = img.imagename + '.atrous.' + suffix + '.fits'
                if img.opts.output_all:
                    func.write_image_to_file('fits', filename, w, img, bdir)
                    mylog.info('%s %s' % ('Wrote ', img.imagename +
                                          '.atrous.' + suffix + '.fits'))

                # now do bdsm on each wavelet image.
                if dobdsm:
                    wopts['filename'] = filename
                    wopts['basedir'] = bdir
                    box = img.rms_box[0]
                    y1 = (l + (l - 1) * (2**(j - 1) - 1))
                    bs = max(5 * y1, box)  # changed from 10 to 5
                    if bs > min(n, m) / 2:
                        wopts['rms_map'] = False
                        wopts['mean_map'] = 'const'
                        wopts['rms_box'] = None
                    else:
                        wopts['rms_box'] = (bs, bs / 3)
                        if hasattr(img, '_adapt_rms_isl_pos'):
                            bs_bright = max(5 * y1, img.rms_box_bright[0])
                            if bs_bright < bs / 1.5:
                                wopts['adaptive_rms_box'] = True
                                wopts['rms_box_bright'] = (bs_bright,
                                                           bs_bright / 3)
                            else:
                                wopts['adaptive_rms_box'] = False
                    if j <= 3:
                        wopts['ini_gausfit'] = 'default'
                    else:
                        wopts['ini_gausfit'] = 'nobeam'
                    wid = (l + (l - 1) * (2**(j - 1) - 1))  # / 3.0
                    b1, b2 = img.pixel_beam()[0:2]
                    b1 = b1 * fwsig
                    b2 = b2 * fwsig
                    cdelt = img.wcs_obj.acdelt[:2]

                    wimg = Image(wopts)
                    wimg.beam = (sqrt(wid * wid + b1 * b1) * cdelt[0] * 2.0,
                                 sqrt(wid * wid + b2 * b2) * cdelt[1] * 2.0,
                                 0.0)
                    wimg.orig_beam = img.beam
                    wimg.pixel_beam = img.pixel_beam
                    wimg.pixel_beamarea = img.pixel_beamarea
                    wimg.log = 'Wavelet.'
                    wimg.basedir = img.basedir
                    wimg.extraparams['bbsprefix'] = suffix
                    wimg.extraparams['bbsname'] = img.imagename + '.wavelet'
                    wimg.extraparams['bbsappend'] = True
                    wimg.bbspatchnum = img.bbspatchnum
                    wimg.waveletimage = True
                    wimg.j = j
                    if hasattr(img, '_adapt_rms_isl_pos'):
                        wimg._adapt_rms_isl_pos = img._adapt_rms_isl_pos

                    self.init_image_simple(wimg, img, w, '.atrous.' + suffix)
                    for op in wchain:
                        op(wimg)
                        gc.collect()
                        if isinstance(op,
                                      Op_islands) and img.opts.atrous_orig_isl:
                            if wimg.nisl > 0:

                                # Find islands that do not share any pixels with
                                # islands in original ch0 image.
                                good_isl = []

                                # Make original rank image boolean; rank counts from 0, with -1 being
                                # outside any island
                                orig_rankim_bool = N.array(img.pyrank + 1,
                                                           dtype=bool)

                                # Multiply rank images
                                old_islands = orig_rankim_bool * (wimg.pyrank +
                                                                  1) - 1

                                # Exclude islands that don't overlap with a ch0 island.
                                valid_ids = set(old_islands.flatten())
                                for idx, wvisl in enumerate(wimg.islands):
                                    if idx in valid_ids:
                                        wvisl.valid = True
                                        good_isl.append(wvisl)
                                    else:
                                        wvisl.valid = False

                                wimg.islands = good_isl
                                wimg.nisl = len(good_isl)
                                mylogger.userinfo(mylog,
                                                  "Number of islands found",
                                                  '%i' % wimg.nisl)

                                # Renumber islands:
                                for wvindx, wvisl in enumerate(wimg.islands):
                                    wvisl.island_id = wvindx

                        if isinstance(op, Op_gausfit):
                            # If opts.atrous_orig_isl then exclude Gaussians outside of
                            # the original ch0 islands
                            nwvgaus = 0
                            if img.opts.atrous_orig_isl:
                                gaul = wimg.gaussians
                                tot_flux = 0.0

                                if img.ngaus == 0:
                                    gaus_id = -1
                                else:
                                    gaus_id = img.gaussians[-1].gaus_num
                                wvgaul = []
                                for g in gaul:
                                    if not hasattr(g, 'valid'):
                                        g.valid = False
                                    if not g.valid:
                                        try:
                                            isl_id = img.pyrank[
                                                int(g.centre_pix[0] + 1),
                                                int(g.centre_pix[1] + 1)]
                                        except IndexError:
                                            isl_id = -1
                                        if isl_id >= 0:
                                            isl = img.islands[isl_id]
                                            gcenter = (g.centre_pix[0] -
                                                       isl.origin[0],
                                                       g.centre_pix[1] -
                                                       isl.origin[1])
                                            if not isl.mask_active[gcenter]:
                                                gaus_id += 1
                                                gcp = Gaussian(
                                                    img, g.parameters[:],
                                                    isl.island_id, gaus_id)
                                                gcp.gaus_num = gaus_id
                                                gcp.wisland_id = g.island_id
                                                gcp.jlevel = j
                                                g.valid = True
                                                isl.gaul.append(gcp)
                                                isl.ngaus += 1
                                                img.gaussians.append(gcp)
                                                nwvgaus += 1
                                                tot_flux += gcp.total_flux
                                            else:
                                                g.valid = False
                                                g.jlevel = 0
                                        else:
                                            g.valid = False
                                            g.jlevel = 0
                                vg = []
                                for g in wimg.gaussians:
                                    if g.valid:
                                        vg.append(g)
                                wimg.gaussians = vg
                                mylogger.userinfo(
                                    mylog, "Number of valid wavelet Gaussians",
                                    str(nwvgaus))
                            else:
                                # Keep all Gaussians and merge islands that overlap
                                tot_flux = check_islands_for_overlap(img, wimg)

                                # Now renumber the islands and adjust the rank image before going to next wavelet image
                                renumber_islands(img)

                    total_flux += tot_flux
                    if img.opts.interactive and has_pl:
                        dc = '\033[34;1m'
                        nc = '\033[0m'
                        print dc + '--> Displaying islands and rms image...' + nc
                        if max(wimg.ch0_arr.shape) > 4096:
                            print dc + '--> Image is large. Showing islands only.' + nc
                            wimg.show_fit(rms_image=False,
                                          mean_image=False,
                                          ch0_image=False,
                                          ch0_islands=True,
                                          gresid_image=False,
                                          sresid_image=False,
                                          gmodel_image=False,
                                          smodel_image=False,
                                          pyramid_srcs=False)
                        else:
                            wimg.show_fit()
                        prompt = dc + "Press enter to continue or 'q' stop fitting wavelet images : " + nc
                        answ = raw_input_no_history(prompt)
                        while answ != '':
                            if answ == 'q':
                                img.wavelet_jmax = j
                                stop_wav = True
                                break
                            answ = raw_input_no_history(prompt)
                    if len(wimg.gaussians) > 0:
                        img.resid_wavelets_arr = self.subtract_wvgaus(
                            img.opts, img.resid_wavelets_arr, wimg.gaussians,
                            wimg.islands)
                        if img.opts.atrous_sum:
                            im_old = self.subtract_wvgaus(
                                img.opts, im_old, wimg.gaussians, wimg.islands)
                    if stop_wav == True:
                        break

            pyrank = N.zeros(img.pyrank.shape, dtype=N.int32)
            for i, isl in enumerate(img.islands):
                isl.island_id = i
                for g in isl.gaul:
                    g.island_id = i
                for dg in isl.dgaul:
                    dg.island_id = i
                pyrank[isl.bbox] += N.invert(isl.mask_active) * (i + 1)
            pyrank -= 1  # align pyrank values with island ids and set regions outside of islands to -1
            img.pyrank = pyrank

            pdir = img.basedir + '/misc/'
            img.ngaus += ntot_wvgaus
            img.total_flux_gaus += total_flux
            mylogger.userinfo(mylog,
                              "Total flux density in model on all scales",
                              '%.3f Jy' % img.total_flux_gaus)
            if img.opts.output_all:
                func.write_image_to_file('fits',
                                         img.imagename + '.atrous.cJ.fits',
                                         im_new, img, bdir)
                mylog.info('%s %s' %
                           ('Wrote ', img.imagename + '.atrous.cJ.fits'))
                func.write_image_to_file(
                    'fits', img.imagename + '.resid_wavelets.fits',
                    (img.ch0_arr - img.resid_gaus_arr +
                     img.resid_wavelets_arr), img, bdir + '/residual/')
                mylog.info('%s %s' %
                           ('Wrote ', img.imagename + '.resid_wavelets.fits'))
                func.write_image_to_file(
                    'fits', img.imagename + '.model_wavelets.fits',
                    (img.resid_gaus_arr - img.resid_wavelets_arr), img,
                    bdir + '/model/')
                mylog.info('%s %s' %
                           ('Wrote ', img.imagename + '.model_wavelets.fits'))
            img.completed_Ops.append('wavelet_atrous')
Ejemplo n.º 4
0
    def __call__(self, img):

        mylog = mylogger.logging.getLogger("PyBDSM." + img.log + "Wavelet")

        if img.opts.atrous_do:
          if img.nisl == 0:
            mylog.warning("No islands found. Skipping wavelet decomposition.")
            img.completed_Ops.append('wavelet_atrous')
            return

          mylog.info("Decomposing gaussian residual image into a-trous wavelets")
          bdir = img.basedir + '/wavelet/'
          if img.opts.output_all:
              if not os.path.isdir(bdir): os.makedirs(bdir)
              if not os.path.isdir(bdir + '/residual/'): os.makedirs(bdir + '/residual/')
              if not os.path.isdir(bdir + '/model/'): os.makedirs(bdir + '/model/')
          dobdsm = img.opts.atrous_bdsm_do
          filter = {'tr':{'size':3, 'vec':[1. / 4, 1. / 2, 1. / 4], 'name':'Triangle'},
                    'b3':{'size':5, 'vec':[1. / 16, 1. / 4, 3. / 8, 1. / 4, 1. / 16], 'name':'B3 spline'}}

          if dobdsm: wchain, wopts = self.setpara_bdsm(img)

          n, m = img.ch0_arr.shape

          # Calculate residual image that results from normal (non-wavelet) Gaussian fitting
          Op_make_residimage()(img)
          resid = img.resid_gaus_arr

          lpf = img.opts.atrous_lpf
          if lpf not in ['b3', 'tr']: lpf = 'b3'
          jmax = img.opts.atrous_jmax
          l = len(filter[lpf]['vec'])             # 1st 3 is arbit and 2nd 3 is whats expected for a-trous
          if jmax < 1 or jmax > 15:                   # determine jmax
            # Check if largest island size is
            # smaller than 1/3 of image size. If so, use it to determine jmax.
            min_size = min(resid.shape)
            max_isl_shape = (0, 0)
            for isl in img.islands:
                if isl.image.shape[0] * isl.image.shape[1] > max_isl_shape[0] * max_isl_shape[1]:
                    max_isl_shape = isl.image.shape
            if max_isl_shape != (0, 0) and min(max_isl_shape) < min(resid.shape) / 3.0:
                min_size = min(max_isl_shape) * 4.0
            else:
                min_size = min(resid.shape)
            jmax = int(floor(log((min_size / 3.0 * 3.0 - l) / (l - 1) + 1) / log(2.0) + 1.0)) + 1
            if min_size * 0.55 <= (l + (l - 1) * (2 ** (jmax) - 1)): jmax = jmax - 1
          img.wavelet_lpf = lpf
          img.wavelet_jmax = jmax
          mylog.info("Using " + filter[lpf]['name'] + ' filter with J_max = ' + str(jmax))

          img.atrous_islands = []
          img.atrous_gaussians = []
          img.atrous_sources = []
          img.atrous_opts = []
          img.resid_wavelets_arr = cp(img.resid_gaus_arr)

          im_old = img.resid_wavelets_arr
          total_flux = 0.0
          ntot_wvgaus = 0
          stop_wav = False
          pix_masked = N.where(N.isnan(resid) == True)
          jmin = 1
          if img.opts.ncores is None:
              numcores = 1
          else:
              numcores = img.opts.ncores
          for j in range(jmin, jmax + 1):  # extra +1 is so we can do bdsm on cJ as well
            mylogger.userinfo(mylog, "\nWavelet scale #" + str(j))
            im_new = self.atrous(im_old, filter[lpf]['vec'], lpf, j, numcores=numcores, use_scipy_fft=img.opts.use_scipy_fft)
            im_new[pix_masked] = N.nan  # since fftconvolve wont work with blanked pixels
            if img.opts.atrous_sum:
                w = im_new
            else:
                w = im_old - im_new
            im_old = im_new
            suffix = 'w' + `j`
            filename = img.imagename + '.atrous.' + suffix + '.fits'
            if img.opts.output_all:
                func.write_image_to_file('fits', filename, w, img, bdir)
                mylog.info('%s %s' % ('Wrote ', img.imagename + '.atrous.' + suffix + '.fits'))

            # now do bdsm on each wavelet image.
            if dobdsm:
              wopts['filename'] = filename
              wopts['basedir'] = bdir
              box = img.rms_box[0]
              y1 = (l + (l - 1) * (2 ** (j - 1) - 1))
              bs = max(5 * y1, box)  # changed from 10 to 5
              if bs > min(n, m) / 2:
                wopts['rms_map'] = False
                wopts['mean_map'] = 'const'
                wopts['rms_box'] = None
              else:
                wopts['rms_box'] = (bs, bs/3)
                if hasattr(img, '_adapt_rms_isl_pos'):
                    bs_bright = max(5 * y1, img.rms_box_bright[0])
                    if bs_bright < bs/1.5:
                        wopts['adaptive_rms_box'] = True
                        wopts['rms_box_bright'] = (bs_bright, bs_bright/3)
                    else:
                        wopts['adaptive_rms_box'] = False
              if j <= 3:
                wopts['ini_gausfit'] = 'default'
              else:
                wopts['ini_gausfit'] = 'nobeam'
              wid = (l + (l - 1) * (2 ** (j - 1) - 1))# / 3.0
              b1, b2 = img.pixel_beam()[0:2]
              b1 = b1 * fwsig
              b2 = b2 * fwsig
              cdelt = img.wcs_obj.acdelt[:2]

              wimg = Image(wopts)
              wimg.beam = (sqrt(wid * wid + b1 * b1) * cdelt[0] * 2.0, sqrt(wid * wid + b2 * b2) * cdelt[1] * 2.0, 0.0)
              wimg.orig_beam = img.beam
              wimg.pixel_beam = img.pixel_beam
              wimg.pixel_beamarea = img.pixel_beamarea
              wimg.log = 'Wavelet.'
              wimg.basedir = img.basedir
              wimg.extraparams['bbsprefix'] = suffix
              wimg.extraparams['bbsname'] = img.imagename + '.wavelet'
              wimg.extraparams['bbsappend'] = True
              wimg.bbspatchnum = img.bbspatchnum
              wimg.waveletimage = True
              wimg.j = j
              if hasattr(img, '_adapt_rms_isl_pos'):
                  wimg._adapt_rms_isl_pos = img._adapt_rms_isl_pos


              self.init_image_simple(wimg, img, w, '.atrous.' + suffix)
              for op in wchain:
                op(wimg)
                gc.collect()
                if isinstance(op, Op_islands) and img.opts.atrous_orig_isl:
                    if wimg.nisl > 0:

                        # Find islands that do not share any pixels with
                        # islands in original ch0 image.
                        good_isl = []

                        # Make original rank image boolean; rank counts from 0, with -1 being
                        # outside any island
                        orig_rankim_bool = N.array(img.pyrank + 1, dtype = bool)

                        # Multiply rank images
                        old_islands = orig_rankim_bool * (wimg.pyrank + 1) - 1

                        # Exclude islands that don't overlap with a ch0 island.
                        valid_ids = set(old_islands.flatten())
                        for idx, wvisl in enumerate(wimg.islands):
                            if idx in valid_ids:
                                wvisl.valid = True
                                good_isl.append(wvisl)
                            else:
                                wvisl.valid = False

                        wimg.islands = good_isl
                        wimg.nisl = len(good_isl)
                        mylogger.userinfo(mylog, "Number of islands found", '%i' %
                                  wimg.nisl)

                        # Renumber islands:
                        for wvindx, wvisl in enumerate(wimg.islands):
                            wvisl.island_id = wvindx

                if isinstance(op, Op_gausfit):
                  # If opts.atrous_orig_isl then exclude Gaussians outside of
                  # the original ch0 islands
                  nwvgaus = 0
                  if img.opts.atrous_orig_isl:
                      gaul = wimg.gaussians
                      tot_flux = 0.0

                      if img.ngaus == 0:
                          gaus_id = -1
                      else:
                          gaus_id = img.gaussians[-1].gaus_num
                      wvgaul = []
                      for g in gaul:
                          if not hasattr(g, 'valid'):
                              g.valid = False
                          if not g.valid:
                              try:
                                  isl_id = img.pyrank[int(g.centre_pix[0] + 1), int(g.centre_pix[1] + 1)]
                              except IndexError:
                                  isl_id = -1
                              if isl_id >= 0:
                                  isl = img.islands[isl_id]
                                  gcenter = (g.centre_pix[0] - isl.origin[0],
                                             g.centre_pix[1] - isl.origin[1])
                                  if not isl.mask_active[gcenter]:
                                      gaus_id += 1
                                      gcp = Gaussian(img, g.parameters[:], isl.island_id, gaus_id)
                                      gcp.gaus_num = gaus_id
                                      gcp.wisland_id = g.island_id
                                      gcp.jlevel = j
                                      g.valid = True
                                      isl.gaul.append(gcp)
                                      isl.ngaus += 1
                                      img.gaussians.append(gcp)
                                      nwvgaus += 1
                                      tot_flux += gcp.total_flux
                                  else:
                                      g.valid = False
                                      g.jlevel = 0
                              else:
                                  g.valid = False
                                  g.jlevel = 0
                      vg = []
                      for g in wimg.gaussians:
                          if g.valid:
                              vg.append(g)
                      wimg.gaussians = vg
                      mylogger.userinfo(mylog, "Number of valid wavelet Gaussians", str(nwvgaus))
                  else:
                      # Keep all Gaussians and merge islands that overlap
                      tot_flux = check_islands_for_overlap(img, wimg)

                      # Now renumber the islands and adjust the rank image before going to next wavelet image
                      renumber_islands(img)

              total_flux += tot_flux
              if img.opts.interactive and has_pl:
                  dc = '\033[34;1m'
                  nc = '\033[0m'
                  print dc + '--> Displaying islands and rms image...' + nc
                  if max(wimg.ch0_arr.shape) > 4096:
                      print dc + '--> Image is large. Showing islands only.' + nc
                      wimg.show_fit(rms_image=False, mean_image=False, ch0_image=False,
                        ch0_islands=True, gresid_image=False, sresid_image=False,
                        gmodel_image=False, smodel_image=False, pyramid_srcs=False)
                  else:
                      wimg.show_fit()
                  prompt = dc + "Press enter to continue or 'q' stop fitting wavelet images : " + nc
                  answ = raw_input_no_history(prompt)
                  while answ != '':
                      if answ == 'q':
                          img.wavelet_jmax = j
                          stop_wav = True
                          break
                      answ = raw_input_no_history(prompt)
              if len(wimg.gaussians) > 0:
                img.resid_wavelets_arr = self.subtract_wvgaus(img.opts, img.resid_wavelets_arr, wimg.gaussians, wimg.islands)
                if img.opts.atrous_sum:
                    im_old = self.subtract_wvgaus(img.opts, im_old, wimg.gaussians, wimg.islands)
              if stop_wav == True:
                  break

          pyrank = N.zeros(img.pyrank.shape, dtype=N.int32)
          for i, isl in enumerate(img.islands):
              isl.island_id = i
              for g in isl.gaul:
                  g.island_id = i
              for dg in isl.dgaul:
                  dg.island_id = i
              pyrank[isl.bbox] += N.invert(isl.mask_active) * (i + 1)
          pyrank -= 1 # align pyrank values with island ids and set regions outside of islands to -1
          img.pyrank = pyrank

          pdir = img.basedir + '/misc/'
          img.ngaus += ntot_wvgaus
          img.total_flux_gaus += total_flux
          mylogger.userinfo(mylog, "Total flux density in model on all scales" , '%.3f Jy' % img.total_flux_gaus)
          if img.opts.output_all:
              func.write_image_to_file('fits', img.imagename + '.atrous.cJ.fits',
                                       im_new, img, bdir)
              mylog.info('%s %s' % ('Wrote ', img.imagename + '.atrous.cJ.fits'))
              func.write_image_to_file('fits', img.imagename + '.resid_wavelets.fits',
                                       (img.ch0_arr - img.resid_gaus_arr + img.resid_wavelets_arr), img, bdir + '/residual/')
              mylog.info('%s %s' % ('Wrote ', img.imagename + '.resid_wavelets.fits'))
              func.write_image_to_file('fits', img.imagename + '.model_wavelets.fits',
                                       (img.resid_gaus_arr - img.resid_wavelets_arr), img, bdir + '/model/')
              mylog.info('%s %s' % ('Wrote ', img.imagename + '.model_wavelets.fits'))
          img.completed_Ops.append('wavelet_atrous')