def test_single_tile(test_apply_correction, render, tmpdir):
# get tilespecs
# Z = test_apply_correction.args['z_index']
Z = 400
inp_tilespecs = renderapi.tilespec.get_tile_specs_from_z(
test_apply_correction.args['input_stack'],
Z,
render=test_apply_correction.render)
corr_tilespecs = renderapi.tilespec.get_tile_specs_from_z(
test_apply_correction.args['correction_stack'],
Z,
render=test_apply_correction.render)
# mult intensity correct each tilespecs and return tilespecs
N, M, C = getImage(corr_tilespecs[0])
corr_dict = {}
for channel in ["DAPI_1", "PSD95"]:
_, _, corr_dict[channel] = getImage(corr_tilespecs[0], channel=channel)
process_tile(C,
test_apply_correction.args['output_directory'],
test_apply_correction.args['output_stack'],
True,
1.0,
0,
65535,
inp_tilespecs[0],
corr_dict=corr_dict)
def test_apply_correction(test_median_stack, mini_raw_stack, render,
tmpdir_factory):
output_directory = str(tmpdir_factory.mktemp('intensity_corrected'))
output_stack = "Flatfield_corrected_test"
params = {
"render": render_params,
"input_stack": mini_raw_stack,
"correction_stack": test_median_stack,
"output_stack": output_stack,
"output_directory": output_directory,
"z_index": 0,
"pool_size": 10,
"overwrite_zlayer": True
}
mod = MultIntensityCorr(input_data=params, args=[])
mod.run()
expected_directory = os.path.join(multiplicative_correction_example_dir,
'intensity_corrected')
output_tilespecs = renderapi.tilespec.get_tile_specs_from_z(output_stack,
0,
render=render)
for ts in output_tilespecs:
N, M, out_image = getImage(ts)
out_filepath = ts.ip[0].imageUrl
out_file = os.path.split(out_filepath)[1]
exp_image = tifffile.imread(os.path.join(expected_directory, out_file))
assert (np.max(np.abs(exp_image - out_image)) < 3)
return mod
def test_median_stack(raw_stack, render, tmpdir_factory):
median_stack = 'median_stack'
output_directory = str(tmpdir_factory.mktemp('Median'))
params = {
"render": render_params,
"input_stack": raw_stack,
"file_prefix": "Median",
"output_stack": median_stack,
"output_directory": output_directory,
"minZ": 0,
"maxZ": 0,
"pool_size": 3,
"log_level": "DEBUG"
}
mod = MakeMedian(input_data=params, args=[])
mod.run()
median_tilespecs = renderapi.tilespec.get_tile_specs_from_stack(
median_stack, render=render)
N, M, median_image = getImage(median_tilespecs[0])
expected_median_file = os.path.join(multiplicative_correction_example_dir,
'median', 'Median_median_stack_0.tif')
expect_median = tifffile.imread(expected_median_file)
assert (np.max(np.abs(median_image - expect_median)) < 3)
yield median_stack
def make_median_image(alltilespecs,
numtiles,
outImage,
pool_size,
chan=None,
gauss_size=10):
# read images and create stack
N, M, img0 = getImage(alltilespecs[0], channel=chan)
stack = np.zeros((N, M, numtiles), dtype=img0.dtype)
mypartial = partial(getImageFromTilespecs, alltilespecs, channel=chan)
indexes = range(0, numtiles)
with renderapi.client.WithPool(pool_size) as pool:
images = pool.map(mypartial, indexes)
# calculate median
for i in range(0, len(images)):
stack[:, :, i] = images[i]
np.median(stack, axis=2, overwrite_input=True)
(A, B, C) = stack.shape
if (numtiles % 2 == 0):
med1 = stack[:, :, numtiles // 2 - 1]
med2 = stack[:, :, numtiles // 2 + 1]
med = (med1 + med2) // 2
else:
med = stack[:, :, (numtiles - 1) // 2]
med = gaussian_filter(med, gauss_size)
tifffile.imsave(outImage, med)
def test_single_tile(test_apply_correction, render, tmpdir):
# get tilespecs
Z = test_apply_correction.zValues[0]
inp_tilespecs = renderapi.tilespec.get_tile_specs_from_z(
test_apply_correction.args['input_stack'],
Z,
render=test_apply_correction.render)
corr_tilespecs = renderapi.tilespec.get_tile_specs_from_z(
test_apply_correction.args['correction_stack'],
Z,
render=test_apply_correction.render)
# mult intensity correct each tilespecs and return tilespecs
N, M, C = getImage(corr_tilespecs[0])
process_tile(C, test_apply_correction.args['output_directory'],
test_apply_correction.args['output_stack'], True, 1.0, 0,
65535, inp_tilespecs[0])
def getImageFromTilespecs(alltilespecs, index, channel=None):
N, M, img = getImage(alltilespecs[index], channel)
return img
