def test_01_01_combine(self):
img = self.get_my_image()
inj = cpm_inject.InjectImage("my_image", img)
inj.module_num = 1
ctg = cpm_ctg.ColorToGray()
ctg.module_num = 2
ctg.image_name.value = "my_image"
ctg.combine_or_split.value = cpm_ctg.COMBINE
ctg.red_contribution.value = 1
ctg.green_contribution.value = 2
ctg.blue_contribution.value = 3
ctg.grayscale_name.value = "my_grayscale"
pipeline = cpp.Pipeline()
pipeline.add_module(inj)
pipeline.add_module(ctg)
pipeline.test_valid()
measurements = cpm.Measurements()
object_set = cpo.ObjectSet()
image_set_list = cpi.ImageSetList()
workspace = Workspace(pipeline, inj, None, None, measurements,
image_set_list, None)
inj.prepare_run(workspace)
inj.prepare_group(workspace, {}, [1])
image_set = image_set_list.get_image_set(0)
inj.run(Workspace(pipeline, inj, image_set, object_set, measurements, None))
ctg.run(Workspace(pipeline, ctg, image_set, object_set, measurements, None))
grayscale = image_set.get_image("my_grayscale")
self.assertTrue(grayscale)
img = grayscale.image
self.assertAlmostEqual(img[0, 0], 1.0 / 6.0)
self.assertAlmostEqual(img[0, 25], 1.0 / 3.0)
self.assertAlmostEqual(img[25, 0], 1.0 / 2.0)
self.assertAlmostEqual(img[25, 25], 0)
def test_01_02_split_all(self):
img = self.get_my_image()
inj = cpm_inject.InjectImage("my_image", img)
inj.module_num = 1
ctg = cpm_ctg.ColorToGray()
ctg.module_num = 2
ctg.image_name.value = "my_image"
ctg.combine_or_split.value = cpm_ctg.SPLIT
ctg.use_red.value = True
ctg.use_blue.value = True
ctg.use_green.value = True
ctg.red_name.value = "my_red"
ctg.green_name.value = "my_green"
ctg.blue_name.value = "my_blue"
pipeline = cpp.Pipeline()
pipeline.add_module(inj)
pipeline.add_module(ctg)
pipeline.test_valid()
measurements = cpm.Measurements()
object_set = cpo.ObjectSet()
image_set_list = cpi.ImageSetList()
workspace = Workspace(pipeline, inj, None, None, measurements,
image_set_list, None)
inj.prepare_run(workspace)
inj.prepare_group(workspace, {}, [1])
image_set = image_set_list.get_image_set(0)
inj.run(
Workspace(pipeline, inj, image_set, object_set, measurements,
None))
ctg.run(
Workspace(pipeline, ctg, image_set, object_set, measurements,
None))
red = image_set.get_image("my_red")
self.assertTrue(red)
img = red.image
self.assertAlmostEqual(img[0, 0], 1)
self.assertAlmostEqual(img[0, 25], 0)
self.assertAlmostEqual(img[25, 0], 0)
self.assertAlmostEqual(img[25, 25], 0)
green = image_set.get_image("my_green")
self.assertTrue(green)
img = green.image
self.assertAlmostEqual(img[0, 0], 0)
self.assertAlmostEqual(img[0, 25], 1)
self.assertAlmostEqual(img[25, 0], 0)
self.assertAlmostEqual(img[25, 25], 0)
blue = image_set.get_image("my_blue")
self.assertTrue(blue)
img = blue.image
self.assertAlmostEqual(img[0, 0], 0)
self.assertAlmostEqual(img[0, 25], 0)
self.assertAlmostEqual(img[25, 0], 1)
self.assertAlmostEqual(img[25, 25], 0)
def test_01_02_split_all():
img = get_my_image()
inj = cellprofiler.modules.injectimage.InjectImage("my_image", img)
inj.module_num = 1
ctg = cellprofiler.modules.colortogray.ColorToGray()
ctg.module_num = 2
ctg.image_name.value = "my_image"
ctg.combine_or_split.value = cellprofiler.modules.colortogray.SPLIT
ctg.use_red.value = True
ctg.use_blue.value = True
ctg.use_green.value = True
ctg.red_name.value = "my_red"
ctg.green_name.value = "my_green"
ctg.blue_name.value = "my_blue"
pipeline = cellprofiler.pipeline.Pipeline()
pipeline.add_module(inj)
pipeline.add_module(ctg)
pipeline.test_valid()
measurements = cellprofiler.measurement.Measurements()
object_set = cellprofiler.object.ObjectSet()
image_set_list = cellprofiler.image.ImageSetList()
workspace = Workspace(pipeline, inj, None, None, measurements,
image_set_list, None)
inj.prepare_run(workspace)
inj.prepare_group(workspace, {}, [1])
image_set = image_set_list.get_image_set(0)
inj.run(Workspace(pipeline, inj, image_set, object_set, measurements,
None))
ctg.run(Workspace(pipeline, ctg, image_set, object_set, measurements,
None))
red = image_set.get_image("my_red")
assert red
img = red.image
numpy.testing.assert_almost_equal(img[0, 0], 1)
numpy.testing.assert_almost_equal(img[0, 25], 0)
numpy.testing.assert_almost_equal(img[25, 0], 0)
numpy.testing.assert_almost_equal(img[25, 25], 0)
green = image_set.get_image("my_green")
assert green
img = green.image
numpy.testing.assert_almost_equal(img[0, 0], 0)
numpy.testing.assert_almost_equal(img[0, 25], 1)
numpy.testing.assert_almost_equal(img[25, 0], 0)
numpy.testing.assert_almost_equal(img[25, 25], 0)
blue = image_set.get_image("my_blue")
assert blue
img = blue.image
numpy.testing.assert_almost_equal(img[0, 0], 0)
numpy.testing.assert_almost_equal(img[0, 25], 0)
numpy.testing.assert_almost_equal(img[25, 0], 1)
numpy.testing.assert_almost_equal(img[25, 25], 0)
def test_02_04_mask_input_image(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.input_image_name.value = IMAGE_NAME
x.segmentation_precision.value = 11
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 30
img = np.ones((200, 200)) * 0.5
draw_brightfield_cell(img, 100, 100, 20, False)
draw_brightfield_cell(img, 25, 25, 10, False)
img[0:10, 0:10] = 1
img[180:200, 180:200] = 0
msk = np.zeros((200, 200))
msk[0:10, 0:10] = 1
msk[180:200, 180:200] = 1
image = cpi.Image(img, file_name="test_02_04_mask_input_image")
mask = cpi.Image(msk)
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
image_set.providers.append(
cpi.VanillaImageProvider(MASK_IMAGE_NAME, mask))
# first try without masking
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
self.assertEqual(0, objects.segmented.max(),
"Cells should not be found due to the distractors")
# now if we use masking option we should find these cells
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.ignore_mask_image_name.value = MASK_IMAGE_NAME
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
self.assertEqual(objects.segmented[25, 25] > 0, 1,
"The small object was not there")
self.assertEqual(objects.segmented[100, 100] > 0, 1,
"The large object was not there")
def test_02_02_discard_small(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.segmentation_precision.value = 11
x.input_image_name.value = IMAGE_NAME
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 30
x.min_cell_area.value = 500
x.max_cell_area.value = 5000
x.advanced_cell_filtering.value = True
img = np.ones((200, 200)) * 0.5
draw_brightfield_cell(img, 100, 100, 20, False)
draw_brightfield_cell(img, 25, 25, 10, False)
draw_brightfield_cell(img, 150, 150, 15, False)
image = cpi.Image(img, file_name="test_02_02_discard_small")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
self.assertEqual(objects.segmented[25, 25] > 0, 0,
"The small object was not filtered out")
self.assertEqual(objects.segmented[150, 150] > 0, 1,
"The medium object was not there")
self.assertEqual(objects.segmented[100, 100] > 0, 1,
"The large object was not there")
location_center_x = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_X")
self.assertTrue(isinstance(location_center_x, np.ndarray))
self.assertEqual(np.product(location_center_x.shape), 2)
def test_01_07_extreme_params(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.segmentation_precision.value = 14
x.input_image_name.value = IMAGE_NAME
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 77
img = get_two_cell_mask()
draw_disc(img, (5, 5), 2, 0.7)
draw_disc(img, (35, 11), 3, 0.2)
img = convert_to_brightfield(img, False)
image = cpi.Image(img, file_name="test_01_07_extreme_params")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
segmented = objects.segmented
self.assertTrue(np.all(
segmented == 0)) # no found because of parameters (no foreground)
self.assertEqual(0, objects.count)
def test_01_06_fill_holes(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.segmentation_precision.value = 11
x.input_image_name.value = IMAGE_NAME
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 5
img = np.zeros((40, 40))
draw_disc(img, (10, 10), 7, .5)
draw_disc(img, (30, 30), 7, .5)
img[10, 10] = 0
img[30, 30] = 0
image = cpi.Image(img, file_name="test_01_06_fill_holes")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
self.assertTrue(objects.segmented[10, 10] > 0)
self.assertTrue(objects.segmented[30, 30] > 0)
def test_01_04_split_channels(self):
np.random.seed(13)
image = np.random.uniform(size=(20, 10, 5))
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.add(IMAGE_NAME, cpi.Image(image))
module = cpm_ctg.ColorToGray()
module.module_num = 1
module.image_name.value = IMAGE_NAME
module.combine_or_split.value = cpm_ctg.SPLIT
module.rgb_or_channels.value = cpm_ctg.CH_CHANNELS
module.add_channel()
module.add_channel()
channel_indexes = np.array([1, 4, 2])
for i, channel_index in enumerate(channel_indexes):
module.channels[i].channel_choice.value = module.channel_names[channel_index]
module.channels[i].image_name.value = OUTPUT_IMAGE_F % i
pipeline = cpp.Pipeline()
def callback(caller, event):
self.assertFalse(isinstance(event, cpp.RunExceptionEvent))
pipeline.add_listener(callback)
pipeline.add_module(module)
workspace = Workspace(pipeline, module, image_set, cpo.ObjectSet(),
cpm.Measurements(), image_set_list)
module.run(workspace)
for i, channel_index in enumerate(channel_indexes):
pixels = image_set.get_image(module.channels[i].image_name.value).pixel_data
self.assertEqual(pixels.ndim, 2)
self.assertEqual(tuple(pixels.shape), (20, 10))
np.testing.assert_almost_equal(image[:, :, channel_index], pixels)
def test_01_01_test_one_object(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.segmentation_precision.value = 11
x.input_image_name.value = IMAGE_NAME
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 10
img = convert_to_brightfield(get_one_cell_mask(), False)
image = cpi.Image(img, file_name="test_01_01_test_one_object")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
self.assertEqual(len(object_set.object_names), 1)
self.assertTrue(OBJECTS_NAME in object_set.object_names)
objects = object_set.get_objects(OBJECTS_NAME)
segmented = objects.segmented
self.assertTrue(is_segmentation_correct(get_one_cell_mask(),
segmented))
self.assertTrue("Image" in measurements.get_object_names())
self.assertTrue(OBJECTS_NAME in measurements.get_object_names())
self.assertTrue(
"Features_Quality" in measurements.get_feature_names(OBJECTS_NAME))
quality = measurements.get_current_measurement(OBJECTS_NAME,
"Features_Quality")
self.assertTrue(quality[0] > 0)
self.assertTrue("Location_Center_Y" in measurements.get_feature_names(
OBJECTS_NAME))
location_center_y = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_Y")
self.assertTrue(isinstance(location_center_y, np.ndarray))
self.assertEqual(np.product(location_center_y.shape), 1)
self.assertTrue(location_center_y[0] > 8)
self.assertTrue(location_center_y[0] < 12)
self.assertTrue("Location_Center_X" in measurements.get_feature_names(
OBJECTS_NAME))
location_center_x = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_X")
self.assertTrue(isinstance(location_center_x, np.ndarray))
self.assertEqual(np.product(location_center_x.shape), 1)
self.assertTrue(location_center_x[0] > 13)
self.assertTrue(location_center_x[0] < 16)
columns = x.get_measurement_columns(pipeline)
for object_name in (cpmeas.IMAGE, OBJECTS_NAME):
ocolumns = [x for x in columns if x[0] == object_name]
features = measurements.get_feature_names(object_name)
self.assertEqual(len(ocolumns), len(features))
self.assertTrue(all([column[1] in features
for column in ocolumns]))
def run(self, workspace: cpw.Workspace) -> None:
input_mask_name: str = self.input_mask_name.value
input_mask: np.ndarray = workspace.get_objects(
input_mask_name).segmented
input_mask = input_mask.astype(dtype=bool)
output = make_padded_array(input_mask, padding=self.padding.value)
output_mask = output["array"]
output_mask_obj = cpo.Objects()
output_mask_obj.segmented = output_mask
workspace.object_set.add_objects(output_mask_obj,
self.output_mask_name.value)
workspace.measurements.add_measurement(
object_name=self.output_mask_name.value,
feature_name="Metadata_Wedge_Origin_X",
data=[output["origin"][0]
], # not sure why this has to be a list...
)
workspace.measurements.add_measurement(
object_name=self.output_mask_name.value,
feature_name="Metadata_Wedge_Origin_Y",
data=[output["origin"][1]],
)
if self.show_window:
# Initialize image to overlay on
if self.image_name.value == cps.LEAVE_BLANK:
image = np.zeros(shape=input_mask.shape[:2] + (3, ),
dtype=float)
else:
image: np.ndarray = workspace.image_set.get_image(
self.image_name.value).pixel_data
# Construct merged image
input_mask_color: Tuple[float, ...] = tuple(
c / 255.0 for c in self.input_mask_color.to_rgb())
output_mask_color: Tuple[float, ...] = tuple(
c / 255.0 for c in self.output_mask_color.to_rgb())
blended_image: np.ndarray = blend_arrays(
image=image,
arrays=[
(input_mask, input_mask_color),
(output_mask, output_mask_color),
],
)
workspace.display_data.blended_image = blended_image
def test_01_01_combine():
img = get_my_image()
inj = cellprofiler.modules.injectimage.InjectImage("my_image", img)
inj.module_num = 1
ctg = cellprofiler.modules.colortogray.ColorToGray()
ctg.module_num = 2
ctg.image_name.value = "my_image"
ctg.combine_or_split.value = cellprofiler.modules.colortogray.COMBINE
ctg.red_contribution.value = 1
ctg.green_contribution.value = 2
ctg.blue_contribution.value = 3
ctg.grayscale_name.value = "my_grayscale"
pipeline = cellprofiler.pipeline.Pipeline()
pipeline.add_module(inj)
pipeline.add_module(ctg)
pipeline.test_valid()
measurements = cellprofiler.measurement.Measurements()
object_set = cellprofiler.object.ObjectSet()
image_set_list = cellprofiler.image.ImageSetList()
workspace = Workspace(pipeline, inj, None, None, measurements,
image_set_list, None)
inj.prepare_run(workspace)
inj.prepare_group(workspace, {}, [1])
image_set = image_set_list.get_image_set(0)
inj.run(Workspace(pipeline, inj, image_set, object_set, measurements,
None))
ctg.run(Workspace(pipeline, ctg, image_set, object_set, measurements,
None))
grayscale = image_set.get_image("my_grayscale")
assert grayscale
img = grayscale.image
numpy.testing.assert_almost_equal(img[0, 0], 1.0 / 6.0)
numpy.testing.assert_almost_equal(img[0, 25], 1.0 / 3.0)
numpy.testing.assert_almost_equal(img[25, 0], 1.0 / 2.0)
numpy.testing.assert_almost_equal(img[25, 25], 0)
def test_01_03_combine_channels():
numpy.random.seed(13)
image = numpy.random.uniform(size=(20, 10, 5))
image_set_list = cellprofiler.image.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.add(IMAGE_NAME, cellprofiler.image.Image(image))
module = cellprofiler.modules.colortogray.ColorToGray()
module.module_num = 1
module.image_name.value = IMAGE_NAME
module.combine_or_split.value = cellprofiler.modules.colortogray.COMBINE
module.grayscale_name.value = OUTPUT_IMAGE_F % 1
module.rgb_or_channels.value = cellprofiler.modules.colortogray.CH_CHANNELS
module.add_channel()
module.add_channel()
channel_indexes = numpy.array([2, 0, 3])
factors = numpy.random.uniform(size=3)
divisor = numpy.sum(factors)
expected = numpy.zeros((20, 10))
for i, channel_index in enumerate(channel_indexes):
module.channels[i].channel_choice.value = channel_index + 1
module.channels[i].contribution.value_text = "%.10f" % factors[i]
expected += image[:, :, channel_index] * factors[i] / divisor
pipeline = cellprofiler.pipeline.Pipeline()
def callback(caller, event):
assert not isinstance(event, cellprofiler.pipeline.RunExceptionEvent)
pipeline.add_listener(callback)
pipeline.add_module(module)
workspace = Workspace(
pipeline,
module,
image_set,
cellprofiler.object.ObjectSet(),
cellprofiler.measurement.Measurements(),
image_set_list,
)
module.run(workspace)
pixels = image_set.get_image(module.grayscale_name.value).pixel_data
assert pixels.ndim == 2
assert tuple(pixels.shape) == (20, 10)
numpy.testing.assert_almost_equal(expected, pixels)
def test_01_05_test_two_flu_dark_objects(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.segmentation_precision.value = 11
x.input_image_name.value = IMAGE_NAME
x.background_brighter_then_cell_inside.value = True
x.bright_field_image.value = False
x.average_cell_diameter.value = 10
img = convert_to_fluorescent(get_two_cell_mask(), True)
image = cpi.Image(img,
file_name="test_01_05_test_two_flu_dark_objects")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
self.assertEqual(len(object_set.object_names), 1)
self.assertTrue(OBJECTS_NAME in object_set.object_names)
objects = object_set.get_objects(OBJECTS_NAME)
self.assertTrue(
is_segmentation_correct(get_two_cell_mask(), objects.segmented))
self.assertTrue("Image" in measurements.get_object_names())
self.assertTrue(OBJECTS_NAME in measurements.get_object_names())
self.assertTrue(
"Features_Quality" in measurements.get_feature_names(OBJECTS_NAME))
quality = measurements.get_current_measurement(OBJECTS_NAME,
"Features_Quality")
self.assertTrue(len(quality) == 2)
self.assertTrue("Location_Center_X" in measurements.get_feature_names(
OBJECTS_NAME))
location_center_y = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_Y")
location_center_x = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_X")
positions = sorted(zip(location_center_x, location_center_y))
self.assertEqual(2, len(positions))
self.assertRange(3, 18, positions[0][0])
self.assertRange(25, 45, positions[0][1])
self.assertRange(20, 40, positions[1][0])
self.assertRange(5, 25, positions[1][1])
def test_01_04_split_channels():
numpy.random.seed(13)
image = numpy.random.uniform(size=(20, 10, 5))
image_set_list = cellprofiler.image.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.add(IMAGE_NAME, cellprofiler.image.Image(image))
module = cellprofiler.modules.colortogray.ColorToGray()
module.module_num = 1
module.image_name.value = IMAGE_NAME
module.combine_or_split.value = cellprofiler.modules.colortogray.SPLIT
module.rgb_or_channels.value = cellprofiler.modules.colortogray.CH_CHANNELS
module.add_channel()
module.add_channel()
module.add_channel()
module.add_channel()
channel_indexes = numpy.array([1, 4, 2])
for i, channel_index in enumerate(channel_indexes):
module.channels[i].channel_choice.value = channel_index + 1
module.channels[i].image_name.value = OUTPUT_IMAGE_F % i
pipeline = cellprofiler.pipeline.Pipeline()
def callback(caller, event):
assert not isinstance(event, cellprofiler.pipeline.RunExceptionEvent)
pipeline.add_listener(callback)
pipeline.add_module(module)
workspace = Workspace(
pipeline,
module,
image_set,
cellprofiler.object.ObjectSet(),
cellprofiler.measurement.Measurements(),
image_set_list,
)
module.run(workspace)
for i, channel_index in enumerate(channel_indexes):
pixels = image_set.get_image(
module.channels[i].image_name.value).pixel_data
assert pixels.ndim == 2
assert tuple(pixels.shape) == (20, 10)
numpy.testing.assert_almost_equal(image[:, :, channel_index], pixels)
def test_01_00_test_zero_objects(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.segmentation_precision.value = 11
x.input_image_name.value = IMAGE_NAME
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 5
img = np.zeros((25, 25))
image = cpi.Image(img, file_name="test_01_00_test_zero_objects")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
self.assertEqual(len(object_set.object_names), 1)
self.assertTrue(OBJECTS_NAME in object_set.object_names)
objects = object_set.get_objects(OBJECTS_NAME)
segmented = objects.segmented
self.assertTrue(np.all(segmented == 0))
self.assertTrue("Image" in measurements.get_object_names())
self.assertTrue(OBJECTS_NAME in measurements.get_object_names())
self.assertTrue(
"Count_" + OBJECTS_NAME in measurements.get_feature_names("Image"))
count = measurements.get_current_measurement("Image",
"Count_" + OBJECTS_NAME)
self.assertEqual(count, 0)
self.assertTrue("Location_Center_X" in measurements.get_feature_names(
OBJECTS_NAME))
location_center_x = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_X")
self.assertTrue(isinstance(location_center_x, np.ndarray))
self.assertEqual(np.product(location_center_x.shape), 0)
self.assertTrue("Location_Center_Y" in measurements.get_feature_names(
OBJECTS_NAME))
location_center_y = measurements.get_current_measurement(
OBJECTS_NAME, "Location_Center_Y")
self.assertTrue(isinstance(location_center_y, np.ndarray))
self.assertEqual(np.product(location_center_y.shape), 0)
def test_01_03_combine_channels(self):
np.random.seed(13)
image = np.random.uniform(size=(20, 10, 5))
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.add(IMAGE_NAME, cpi.Image(image))
module = cpm_ctg.ColorToGray()
module.module_num = 1
module.image_name.value = IMAGE_NAME
module.combine_or_split.value = cpm_ctg.COMBINE
module.grayscale_name.value = OUTPUT_IMAGE_F % 1
module.rgb_or_channels.value = cpm_ctg.CH_CHANNELS
module.add_channel()
module.add_channel()
channel_indexes = np.array([2, 0, 3])
factors = np.random.uniform(size=3)
divisor = np.sum(factors)
expected = np.zeros((20, 10))
for i, channel_index in enumerate(channel_indexes):
module.channels[i].channel_choice.value = module.channel_names[
channel_index]
module.channels[i].contribution.value_text = "%.10f" % factors[i]
expected += image[:, :, channel_index] * factors[i] / divisor
pipeline = cpp.Pipeline()
def callback(caller, event):
self.assertFalse(isinstance(event, cpp.RunExceptionEvent))
pipeline.add_listener(callback)
pipeline.add_module(module)
workspace = Workspace(pipeline, module, image_set, cpo.ObjectSet(),
cpm.Measurements(), image_set_list)
module.run(workspace)
pixels = image_set.get_image(module.grayscale_name.value).pixel_data
self.assertEqual(pixels.ndim, 2)
self.assertEqual(tuple(pixels.shape), (20, 10))
np.testing.assert_almost_equal(expected, pixels)
def test_02_03_use_background_image(self):
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.input_image_name.value = IMAGE_NAME
x.segmentation_precision.value = 11
x.background_image_name.value = BACKGROUND_IMAGE_NAME
x.background_elimination_strategy.value = YS.BKG_FILE
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 30
img = np.ones((200, 200)) * 0.5
draw_brightfield_cell(img, 100, 100, 20, False)
draw_brightfield_cell(img, 25, 25, 10, False)
draw_brightfield_cell(img, 150, 150, 15, False) # background blob
bkg = np.ones((200, 200)) * 0.5
draw_brightfield_cell(bkg, 150, 150, 15, False) # background blob
image = cpi.Image(img, file_name="test_02_03_use_background_image")
background = cpi.Image(bkg)
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
image_set.providers.append(
cpi.VanillaImageProvider(BACKGROUND_IMAGE_NAME, background))
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
self.assertEqual(objects.segmented[25, 25] > 0, 1,
"The small object was not there")
self.assertEqual(objects.segmented[100, 100] > 0, 1,
"The large object was not there")
self.assertEqual(objects.segmented[150, 150] > 0, 0,
"The background blob was not filtered out")
def run(self, workspace: cpw.Workspace) -> None:
if self.crop_mask_name.value == "Leave blank":
origin_x = 0
origin_y = 0
else:
crop_mask: np.ndarray = workspace.object_set.get_objects(
self.crop_mask_name.value).segmented
origin_x = np.logical_or.reduce(crop_mask, axis=0).argmax()
origin_y = np.logical_or.reduce(crop_mask, axis=1).argmax()
center_x = workspace.measurements.get_current_image_measurement(
"Metadata_Bow_Center_X")
center_y = workspace.measurements.get_current_image_measurement(
"Metadata_Bow_Center_Y")
well_x = workspace.measurements.get_current_image_measurement(
"Metadata_Bow_Well_X")
well_y = workspace.measurements.get_current_image_measurement(
"Metadata_Bow_Well_Y")
mpp = workspace.measurements.get_current_image_measurement(
"Metadata_MPP")
# translate if cropped
center_x -= origin_x
center_y -= origin_y
well_x -= origin_x
well_y -= origin_y
# Compute polar origin
radius = math.sqrt((well_y - center_y)**2 + (well_x - center_x)**2)
radius *= mpp
angle = math.atan2((well_y - center_y), (well_x - center_x))
for object_name in [obj.name.value for obj in self.object_groups]:
objects: cpo.Objects = workspace.object_set.get_objects(
object_name)
# Compute delta in polar coordinates
centroids: np.ndarray = objects.center_of_mass() # y, x
if centroids.size == 0:
continue
dy = centroids[:, 0] - center_y
dx = centroids[:, 1] - center_x
radial_dist = np.sqrt(dy**2 + dx**2)
# everything in pixels up until now
radial_dist *= mpp
angular_dist = (np.arctan2(dy, dx) - angle +
math.pi) % (2 * math.pi) - math.pi
workspace.measurements.add_image_measurement(
feature_name="Metadata_Radius", data=radius)
workspace.add_measurement(
object_name=object_name,
feature_name="WellDistance_RadialDistance",
data=radial_dist,
)
workspace.add_measurement(
object_name=object_name,
feature_name="WellDistance_AngularDistance",
data=angular_dist,
)
def test_03_01_simple_fitting(self):
# reduce depth of fitting to speed up testing
import cellstar.parameter_fitting.pf_process as process
import cellstar.parameter_fitting.pf_runner as runner
process.SEARCH_LENGTH_NORMAL = 20
# test multicore but only two cores
process.get_max_workers = lambda: 2
runner.get_max_workers = lambda: 2
# make it deterministic
np.random.seed(1)
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.input_image_name.value = IMAGE_NAME
x.segmentation_precision.value = 9 # so that it is faster for fitting
x.maximal_cell_overlap.value = 0.4
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 30
x.autoadaptation_steps.value = 1
img = np.ones((200, 200)) * 0.5
draw_brightfield_cell(img, 100, 100, 15, False)
draw_brightfield_cell(img, 120, 120, 15, False)
draw_brightfield_cell(img, 110, 70, 15, False)
draw_brightfield_cell(img, 160, 160, 10, False)
draw_disc(img, (100, 100), 15, .65)
draw_disc(img, (120, 120), 15, .65)
draw_disc(img, (110, 70), 15, .65)
draw_disc(img, (160, 160), 10, .65)
img = img + np.random.normal(3., 0.01, img.shape)
img = scipy.ndimage.gaussian_filter(img, 3)
label = np.zeros((200, 200), dtype=int)
draw_disc(label, (100, 100), 15, 1)
draw_disc(label, (110, 70), 15, 2)
image = cpi.Image(img, file_name="test_03_01_simple_fitting")
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
old_params = ast.literal_eval(x.autoadapted_params.value)
input_processed, background_processed, ignore_mask_processed = x.preprocess_images(
img, None, None)
x.fit_parameters(input_processed, background_processed,
ignore_mask_processed, label,
x.autoadaptation_steps.value * 2, lambda x: True,
lambda secs: time.sleep(secs))
new_params = ast.literal_eval(x.autoadapted_params.value)
self.assertNotEqual(old_params[0], new_params[0])
self.assertNotEqual(old_params[1], new_params[1])
# now if we use new parameters option we should find these cells
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.segmentation_precision.value = 11
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
self.assertEqual(4, objects.segmented.max())
colours = sorted([
objects.segmented[100, 100], objects.segmented[120, 120],
objects.segmented[110, 70], objects.segmented[160, 160]
])
self.assertEqual(colours[0], 1)
self.assertEqual(colours[1], 2)
self.assertEqual(colours[2], 3)
self.assertEqual(colours[3], 4)
def test_03_02_fitting_background_masked(self):
# reduce depth of fitting to speed up testing
import cellstar.parameter_fitting.pf_process as process
import cellstar.parameter_fitting.pf_runner as runner
process.SEARCH_LENGTH_NORMAL = 20
# test one core
process.get_max_workers = lambda: 1
runner.get_max_workers = lambda: 1
# make it deterministic
np.random.seed(1)
x = YS.IdentifyYeastCells()
x.object_name.value = OBJECTS_NAME
x.input_image_name.value = IMAGE_NAME
x.segmentation_precision.value = 9 # so that it is faster for fitting
x.maximal_cell_overlap.value = 0.4
x.background_brighter_then_cell_inside.value = False
x.average_cell_diameter.value = 12
x.autoadaptation_steps.value = 1
x.background_image_name.value = BACKGROUND_IMAGE_NAME
x.background_elimination_strategy.value = YS.BKG_FILE
x.ignore_mask_image_name.value = MASK_IMAGE_NAME
img = np.ones((50, 50)) * 0.5
draw_brightfield_cell(img, 7, 7, 5, False)
draw_brightfield_cell(img, 25, 28, 5, False)
draw_brightfield_cell(img, 15, 16, 5, False)
draw_brightfield_cell(img, 40, 40, 4, False)
draw_disc(img, (7, 7), 5, .65)
draw_disc(img, (25, 28), 5, .65)
draw_disc(img, (15, 16), 5, .65)
draw_disc(img, (40, 40), 4, .65)
img = img + np.random.normal(0.5, 0.01, img.shape)
img = scipy.ndimage.gaussian_filter(img, 2)
# bright flares
draw_disc(img, (40, 10), 10, 1.5)
ignore_mask = np.zeros((50, 50), dtype=bool)
draw_disc(ignore_mask, (40, 10), 10, 1)
# dark areas
draw_disc(img, (50, 25), 10, 0.0)
background_mask = np.ones((50, 50)) * 0.5
draw_disc(background_mask, (50, 25), 10, 0.0)
label = np.zeros((50, 50), dtype=int)
draw_disc(label, (10, 10), 7, 1)
draw_disc(label, (25, 20), 7, 2)
image = cpi.Image(img,
file_name="test_03_02_fitting_background_masked")
mask = cpi.Image(ignore_mask)
background = cpi.Image(background_mask)
image_set_list = cpi.ImageSetList()
image_set = image_set_list.get_image_set(0)
image_set.providers.append(cpi.VanillaImageProvider(IMAGE_NAME, image))
image_set.providers.append(
cpi.VanillaImageProvider(MASK_IMAGE_NAME, mask))
image_set.providers.append(
cpi.VanillaImageProvider(BACKGROUND_IMAGE_NAME, background))
old_params = ast.literal_eval(x.autoadapted_params.value)
input_processed, background_processed, ignore_mask_processed = x.preprocess_images(
img, background_mask, ignore_mask)
x.fit_parameters(input_processed, background_processed,
ignore_mask_processed, label,
x.autoadaptation_steps.value * 2, lambda x: True,
lambda secs: time.sleep(secs))
new_params = ast.literal_eval(x.autoadapted_params.value)
self.assertNotEqual(old_params[0], new_params[0])
self.assertNotEqual(old_params[1], new_params[1])
# now if we use new parameters option we should find these cells
object_set = cpo.ObjectSet()
measurements = cpmeas.Measurements()
pipeline = cellprofiler.pipeline.Pipeline()
x.segmentation_precision.value = 11
x.run(Workspace(pipeline, x, image_set, object_set, measurements,
None))
objects = object_set.get_objects(OBJECTS_NAME)
# 3 or four objects are acceptable
self.assertLessEqual(3, objects.segmented.max())
self.assertLessEqual(objects.segmented.max(), 4)
colours = sorted([
objects.segmented[10, 10], objects.segmented[25, 25],
objects.segmented[40, 40]
])
self.assertEqual(colours[0], 1)
self.assertEqual(colours[1], 2)
self.assertEqual(colours[2], 3)