def test_mask_patch_sparse():
for i in range(REPEATS):
print(f"Loop number {i}")
num_nav_dims = np.random.choice([1, 2, 3])
num_sig_dims = np.random.choice([2, 3])
nav_dims = tuple(np.random.randint(low=8, high=16, size=num_nav_dims))
sig_dims = tuple(np.random.randint(low=8, high=16, size=num_sig_dims))
# The mask-based correction is performed as float64 since it creates
# numerical instabilities otherwise
data = gradient_data(nav_dims, sig_dims).astype(np.float64)
gain_map = (np.random.random(sig_dims) + 1).astype(np.float64)
dark_image = np.random.random(sig_dims).astype(np.float64)
exclude = exclude_pixels(sig_dims=sig_dims, num_excluded=3)
damaged_data = data.copy()
damaged_data /= gain_map
damaged_data += dark_image
damaged_data[(Ellipsis, *exclude)] = 1e24
print("Nav dims: ", nav_dims)
print("Sig dims:", sig_dims)
print("Exclude: ", exclude)
masks = sparse.DOK(sparse.zeros((20, ) + sig_dims, dtype=np.float64))
indices = [
np.random.randint(low=0, high=s, size=s // 2)
for s in (20, ) + sig_dims
]
for tup in zip(*indices):
masks[tup] = 1
masks = masks.to_coo()
data_flat = data.reshape((np.prod(nav_dims), np.prod(sig_dims)))
damaged_flat = damaged_data.reshape(
(np.prod(nav_dims), np.prod(sig_dims)))
correct_dot = sparse.dot(data_flat,
masks.reshape((-1, np.prod(sig_dims))).T)
corrected_masks = detector.correct_dot_masks(masks, gain_map, exclude)
assert is_sparse(corrected_masks)
reconstructed_dot =\
sparse.dot(damaged_flat, corrected_masks.reshape((-1, np.prod(sig_dims))).T)\
- sparse.dot(dark_image.flatten(), corrected_masks.reshape((-1, np.prod(sig_dims))).T)
_check_result(data=correct_dot,
corrected=reconstructed_dot,
atol=1e-8,
rtol=1e-5)
def test_mask_patch_overlapping():
for i in range(REPEATS):
print(f"Loop number {i}")
num_nav_dims = np.random.choice([1, 2, 3])
num_sig_dims = np.random.choice([2, 3])
nav_dims = tuple(np.random.randint(low=8, high=16, size=num_nav_dims))
sig_dims = tuple(np.random.randint(low=8, high=16, size=num_sig_dims))
# The mask-based correction is performed as float64 since it creates
# numerical instabilities otherwise
# Constant data to reconstruct neighboring damaged pixels faithfully
data = np.ones(nav_dims + sig_dims, dtype=np.float64)
gain_map = (np.random.random(sig_dims) + 1).astype(np.float64)
dark_image = np.random.random(sig_dims).astype(np.float64)
# Neighboring excluded pixels
exclude = np.ones((num_sig_dims, 3), dtype=np.int32)
exclude[0, 1] += 1
exclude[1, 2] += 1
damaged_data = data.copy()
damaged_data /= gain_map
damaged_data += dark_image
damaged_data[(Ellipsis, *exclude)] = 1e24
print("Nav dims: ", nav_dims)
print("Sig dims:", sig_dims)
print("Exclude: ", exclude)
masks = (np.random.random((2, ) + sig_dims) - 0.5).astype(np.float64)
data_flat = data.reshape((np.prod(nav_dims), np.prod(sig_dims)))
damaged_flat = damaged_data.reshape(
(np.prod(nav_dims), np.prod(sig_dims)))
correct_dot = np.dot(data_flat,
masks.reshape((-1, np.prod(sig_dims))).T)
corrected_masks = detector.correct_dot_masks(masks, gain_map, exclude)
assert not is_sparse(corrected_masks)
reconstructed_dot =\
np.dot(damaged_flat, corrected_masks.reshape((-1, np.prod(sig_dims))).T)\
- np.dot(dark_image.flatten(), corrected_masks.reshape((-1, np.prod(sig_dims))).T)
_check_result(data=correct_dot,
corrected=reconstructed_dot,
atol=1e-8,
rtol=1e-5)
def test_mask_correction():
for i in range(REPEATS):
print(f"Loop number {i}")
num_nav_dims = np.random.choice([1, 2, 3])
num_sig_dims = np.random.choice([2, 3])
nav_dims = tuple(np.random.randint(low=8, high=16, size=num_nav_dims))
sig_dims = tuple(np.random.randint(low=8, high=16, size=num_sig_dims))
# The mask-based correction is performed as float64 since it creates
# numerical instabilities otherwise
data = gradient_data(nav_dims, sig_dims).astype(np.float64)
gain_map = (np.random.random(sig_dims) + 1).astype(np.float64)
dark_image = np.random.random(sig_dims).astype(np.float64)
exclude = exclude_pixels(sig_dims=sig_dims, num_excluded=0)
damaged_data = data.copy()
damaged_data /= gain_map
damaged_data += dark_image
assert np.allclose((damaged_data - dark_image) * gain_map, data)
print("Nav dims: ", nav_dims)
print("Sig dims:", sig_dims)
print("Exclude: ", exclude)
masks = (np.random.random((2, ) + sig_dims) - 0.5).astype(np.float64)
data_flat = data.reshape((np.prod(nav_dims), np.prod(sig_dims)))
damaged_flat = damaged_data.reshape(
(np.prod(nav_dims), np.prod(sig_dims)))
correct_dot = np.dot(data_flat,
masks.reshape((-1, np.prod(sig_dims))).T)
corrected_masks = detector.correct_dot_masks(masks, gain_map, exclude)
assert not is_sparse(corrected_masks)
reconstructed_dot =\
np.dot(damaged_flat, corrected_masks.reshape((-1, np.prod(sig_dims))).T)\
- np.dot(dark_image.flatten(), corrected_masks.reshape((-1, np.prod(sig_dims))).T)
_check_result(data=correct_dot,
corrected=reconstructed_dot,
atol=1e-8,
rtol=1e-5)
