def testGrow(self):
"""Test growing a footprint"""
x0, y0 = 20, 20
width, height = 20, 30
foot1 = afwDetect.Footprint(afwGeom.Box2I(afwGeom.Point2I(x0, y0), afwGeom.Extent2I(width, height)),
afwGeom.Box2I(afwGeom.Point2I(0, 0), afwGeom.Extent2I(100, 100)))
# Add some peaks and check that they get copied into the new grown footprint
foot1.addPeak(20, 20, 1)
foot1.addPeak(30, 35, 2)
foot1.addPeak(25, 45, 3)
self.assertEqual(len(foot1.getPeaks()), 3)
bbox1 = foot1.getBBox()
self.assertEqual(bbox1.getMinX(), x0)
self.assertEqual(bbox1.getMaxX(), x0 + width - 1)
self.assertEqual(bbox1.getWidth(), width)
self.assertEqual(bbox1.getMinY(), y0)
self.assertEqual(bbox1.getMaxY(), y0 + height - 1)
self.assertEqual(bbox1.getHeight(), height)
ngrow = 5
for isotropic in (True, False):
foot2 = afwDetect.growFootprint(foot1, ngrow, isotropic)
# Check that peaks got copied into grown footprint
self.assertEqual(len(foot2.getPeaks()), 3)
for peak in foot2.getPeaks():
self.assertTrue((peak.getIx(), peak.getIy()) in [(20, 20), (30, 35), (25, 45)])
bbox2 = foot2.getBBox()
if False and display:
idImage = afwImage.ImageU(width, height)
idImage.set(0)
i = 1
for foot in [foot1, foot2]:
foot.insertIntoImage(idImage, i)
i += 1
metricImage = afwImage.ImageF("foo.fits")
ds9.mtv(metricImage, frame=1)
ds9.mtv(idImage)
# check bbox2
self.assertEqual(bbox2.getMinX(), x0 - ngrow)
self.assertEqual(bbox2.getWidth(), width + 2*ngrow)
self.assertEqual(bbox2.getMinY(), y0 - ngrow)
self.assertEqual(bbox2.getHeight(), height + 2*ngrow)
# Check that region was preserved
self.assertEqual(foot1.getRegion(), foot2.getRegion())
def testGrow(self):
"""Test growing a footprint"""
x0, y0 = 20, 20
width, height = 20, 30
foot1 = afwDetect.Footprint(
afwGeom.Box2I(afwGeom.Point2I(x0, y0),
afwGeom.Extent2I(width, height)),
afwGeom.Box2I(afwGeom.Point2I(0, 0), afwGeom.Extent2I(100, 100)))
bbox1 = foot1.getBBox()
self.assertEqual(bbox1.getMinX(), x0)
self.assertEqual(bbox1.getMaxX(), x0 + width - 1)
self.assertEqual(bbox1.getWidth(), width)
self.assertEqual(bbox1.getMinY(), y0)
self.assertEqual(bbox1.getMaxY(), y0 + height - 1)
self.assertEqual(bbox1.getHeight(), height)
ngrow = 5
for isotropic in (True, False):
foot2 = afwDetect.growFootprint(foot1, ngrow, isotropic)
# Check that the grown footprint is normalized
self.assertTrue(foot2.isNormalized())
# Check that the grown footprint is bigger than the original
self.assertGreater(foot2.getArea(), foot1.getArea())
bbox2 = foot2.getBBox()
if False and display:
idImage = afwImage.ImageU(width, height)
idImage.set(0)
i = 1
for foot in [foot1, foot2]:
foot.insertIntoImage(idImage, i)
i += 1
metricImage = afwImage.ImageF("foo.fits")
ds9.mtv(metricImage, frame=1)
ds9.mtv(idImage)
# check bbox2
self.assertEqual(bbox2.getMinX(), x0 - ngrow)
self.assertEqual(bbox2.getWidth(), width + 2 * ngrow)
self.assertEqual(bbox2.getMinY(), y0 - ngrow)
self.assertEqual(bbox2.getHeight(), height + 2 * ngrow)
# Check that region was preserved
self.assertEqual(foot1.getRegion(), foot2.getRegion())
def testGrow(self):
"""Test growing a footprint"""
x0, y0 = 20, 20
width, height = 20, 30
foot1 = afwDetect.Footprint(afwGeom.Box2I(afwGeom.Point2I(x0, y0), afwGeom.Extent2I(width, height)),
afwGeom.Box2I(afwGeom.Point2I(0, 0), afwGeom.Extent2I(100, 100)))
bbox1 = foot1.getBBox()
self.assertEqual(bbox1.getMinX(), x0)
self.assertEqual(bbox1.getMaxX(), x0 + width - 1)
self.assertEqual(bbox1.getWidth(), width)
self.assertEqual(bbox1.getMinY(), y0)
self.assertEqual(bbox1.getMaxY(), y0 + height - 1)
self.assertEqual(bbox1.getHeight(), height)
ngrow = 5
for isotropic in (True, False):
foot2 = afwDetect.growFootprint(foot1, ngrow, isotropic)
# Check that the grown footprint is normalized
self.assertTrue(foot2.isNormalized())
# Check that the grown footprint is bigger than the original
self.assertGreater(foot2.getArea(), foot1.getArea())
bbox2 = foot2.getBBox()
if False and display:
idImage = afwImage.ImageU(width, height)
idImage.set(0)
i = 1
for foot in [foot1, foot2]:
foot.insertIntoImage(idImage, i)
i += 1
metricImage = afwImage.ImageF("foo.fits")
ds9.mtv(metricImage, frame=1)
ds9.mtv(idImage)
# check bbox2
self.assertEqual(bbox2.getMinX(), x0 - ngrow)
self.assertEqual(bbox2.getWidth(), width + 2*ngrow)
self.assertEqual(bbox2.getMinY(), y0 - ngrow)
self.assertEqual(bbox2.getHeight(), height + 2*ngrow)
# Check that region was preserved
self.assertEqual(foot1.getRegion(), foot2.getRegion())
def testGrow2(self):
"""Grow some more interesting shaped Footprints. Informative with display, but no numerical tests"""
ds = afwDetect.FootprintSet(self.ms, afwDetect.Threshold(10), "OBJECT")
idImage = afwImage.ImageU(self.ms.getDimensions())
idImage.set(0)
i = 1
for foot in ds.getFootprints()[0:1]:
gfoot = afwDetect.growFootprint(foot, 3, False)
gfoot.insertIntoImage(idImage, i)
i += 1
if display:
ds9.mtv(self.ms, frame=0)
ds9.mtv(idImage, frame=1)
def testGrow2(self):
"""Grow some more interesting shaped Footprints. Informative with display, but no numerical tests"""
ds = afwDetect.FootprintSet(self.ms, afwDetect.Threshold(10), "OBJECT")
idImage = afwImage.ImageU(self.ms.getDimensions())
idImage.set(0)
i = 1
for foot in ds.getFootprints()[0:1]:
gfoot = afwDetect.growFootprint(foot, 3, False)
gfoot.insertIntoImage(idImage, i)
i += 1
if display:
ds9.mtv(self.ms, frame=0)
ds9.mtv(idImage, frame=1)
def testGrow2(self):
"""Grow some more interesting shaped Footprints. Informative with display, but no numerical tests"""
#Can't set mask plane as the image is not a masked image.
ds = afwDetect.makeFootprintSet(self.im, afwDetect.Threshold(10))
idImage = afwImage.ImageU(self.im.getDimensions())
idImage.set(0)
i = 1
for foot in ds.getFootprints()[0:1]:
gfoot = afwDetect.growFootprint(foot, 3, False)
gfoot.insertIntoImage(idImage, i)
i += 1
if display:
ds9.mtv(self.im, frame=0)
ds9.mtv(idImage, frame=1)
def defectListFromFootprintList(fpList, growFootprints=1):
"""Compute a defect list from a footprint list, optionally growing the footprints
@param[in] fpList footprint list
@param[in] growFootprints amount by which to grow footprints of detected regions
@return meas.algorithms.DefectListT
"""
defectList = measAlg.DefectListT()
for fp in fpList:
if growFootprints > 0:
# if "True", growing requires a convolution
# if "False", its faster
fpGrow = afwDetection.growFootprint(fp, growFootprints, False)
else:
fpGrow = fp
for bbox in afwDetection.footprintToBBoxList(fpGrow):
defect = measAlg.Defect(bbox)
defectList.push_back(defect)
return defectList
def defectListFromFootprintList(fpList, growFootprints=1):
"""Compute a defect list from a footprint list, optionally growing the footprints
@param[in] fpList footprint list
@param[in] growFootprints amount by which to grow footprints of detected regions
@return meas.algorithms.DefectListT
"""
defectList = measAlg.DefectListT()
for fp in fpList:
if growFootprints > 0:
# if "True", growing requires a convolution
# if "False", its faster
fpGrow = afwDetection.growFootprint(fp, growFootprints, False)
else:
fpGrow = fp
for bbox in afwDetection.footprintToBBoxList(fpGrow):
defect = measAlg.Defect(bbox)
defectList.push_back(defect)
return defectList
def testGrowEmpty(self):
"""Check that growing an empty Footprint doesn't fail an assertion; #1186"""
fp = afwDetect.Footprint()
fp.setRegion(afwGeom.Box2I(afwGeom.Point2I(0, 0), afwGeom.Extent2I(10, 10)))
afwDetect.growFootprint(fp, 5)