# Load samples
# samples = [os.path.basename(x) for x in glob(str(args.dataset_root / '*XZ'))] # Load with specific name
samples = os.listdir(args.dataset_root)
samples.sort()
#samples = [samples[id] for id in [106]] # Get intended samples from list
# Skip the completed samples
if args.completed > 0:
samples = samples[args.completed:]
for idx, sample in enumerate(samples):
print(f'==> Processing sample {idx + 1} of {len(samples)}: {sample}')
# Load image stacks
data_xz, files = load(str(args.dataset_root / sample),
rgb=True,
axis=(1, 2, 0))
data_yz = np.transpose(data_xz, (0, 2, 1, 3)) # Y-Z-X-Ch
mask_xz = np.zeros(data_xz.shape)[:, :, :,
0] # Remove channel dimension
mask_yz = np.zeros(data_yz.shape)[:, :, :, 0]
# Loop for image slices
# 1st orientation
with torch.no_grad(): # Do not update gradients
for slice_idx in tqdm(range(data_yz.shape[2]),
desc='Running inference, YZ'):
mask_yz[:, :,
slice_idx] = inference(model, args, config,
data_yz[:, :, slice_idx, :])
# 2nd orientation
# Initialize results
results = {'Sample': [], 'Most frequent thickness value': []}
# Loop for samples
args.save_dir.mkdir(exist_ok=True)
(args.save_dir / 'Visualizations').mkdir(exist_ok=True)
samples = os.listdir(str(args.mask_path))
#samples = [os.path.basename(x) for x in glob(str(args.mask_path / '*'))]
samples.sort()
for sample in tqdm(samples, 'Analysing thickness'):
# Sample path
thickness_path = base_path / sample / subdir
# Load image stacks
if thickness_path.exists():
data, files = load(str(thickness_path), rgb=False, n_jobs=args.n_threads)
else:
continue
# Visualize thickness map
print_orthogonal(data, savepath=str(args.save_dir / 'Visualizations' / ('CCTh_' + sample + '.png')))
# Histogram
data = data.flatten()
#data = data[data != 0] # Remove zeros
max_value = np.max(data)
hist, bin_edges = np.histogram(data * 3.2, bins=254, range=[1, max_value]) # Exclude background
plt.hist(data, bins=range(1, max_value))
plt.title(sample)
plt.savefig(str(args.save_dir / 'Visualizations' / ('histogram_' + sample + '.png')))
)
parser.add_argument(
'--mask_dir',
type=pathlib.Path,
#default='/media/dios/dios2/RabbitSegmentation/µCT/predictions_4fold/8C_M1_lateral_condyle_XZ/Largest')
default=
'/media/dios/dios2/RabbitSegmentation/Histology/Insaf_series/Masks/Binned3/Binned2/Binned3'
)
parser.add_argument('--crop', type=str, default='value')
parser.add_argument('--saved', type=bool, default=True)
parser.add_argument('--plot', type=bool, default=False)
parser.add_argument('--largest', type=bool, default=False)
args = parser.parse_args()
# Load and set paths
im_files, data = load(args.dataset_root, rgb=True, uCT=False)
mask_files, mask = load(args.mask_dir, rgb=False, uCT=False)
# Expand mask to 3 channels
# mask_large = np.zeros((mask.shape[0], mask.shape[1], 3, mask.shape[2]))
# for i in range(mask_large.shape[2]):
# mask_large[:, :, i, :] = mask
if args.crop == 'bbox':
# Get bounding box for masks and crop data + mask
contours = []
removed = 0
for sample in tqdm(range(len(mask)), 'Getting bounding boxes'):
try:
bbox, contour = bounding_box(mask[sample - removed],
largest=args.largest)
parser.add_argument('--plot', type=bool, default=False)
parser.add_argument('--dtype',
type=str,
choices=['.bmp', '.png', '.tif'],
default='.bmp')
args = parser.parse_args()
# Loop for samples
args.save_dir.mkdir(exist_ok=True)
samples = os.listdir(str(args.data_path))
#samples = [os.path.basename(x) for x in glob(str(args.mask_path / '*.png'))]
samples.sort()
for sample in tqdm(samples, 'Smoothing'):
#try:
# Load image
_, data = load(str(args.data_path / sample), uCT=True)
data_scaled = map_uint16_to_uint8(data,
lower_bound=0,
upper_bound=40000)
print_orthogonal(data_scaled)
img = cv2.imread(str(args.mask_path / sample), cv2.IMREAD_GRAYSCALE)
if args.plot:
plt.imshow(img)
plt.title('Loaded image')
plt.show()
# Opening
kernel = cv2.getStructuringElement(shape=cv2.MORPH_ELLIPSE,
ksize=args.k_closing)
img = cv2.morphologyEx(img, cv2.MORPH_OPEN, kernel=kernel)
#plt.imshow(img); plt.title('Closing'); plt.show()
def evaluation_runner(args, config, save_dir):
"""
Calculates evaluation metrics on predicted masks against target.
:param args:
:param config:
:param save_dir:
:return:
"""
start_eval = time()
# Evaluation arguments
args.image_path = args.data_location / 'images'
args.mask_path = args.data_location / 'masks'
args.pred_path = args.data_location / 'predictions'
args.save_dir = args.data_location / 'evaluation'
args.save_dir.mkdir(exist_ok=True)
args.n_labels = 2
# Snapshots to be evaluated
if type(save_dir) != list:
save_dir = [save_dir]
# Iterate through snapshots
for snap in save_dir:
# Initialize results
results = {'Sample': [], 'Dice': [], 'IoU': [], 'Similarity': []}
# Loop for samples
(args.save_dir / ('visualizations_' + snap.name)).mkdir(exist_ok=True)
samples = os.listdir(str(args.mask_path))
samples.sort()
try:
for idx, sample in enumerate(samples):
print(
f'==> Processing sample {idx + 1} of {len(samples)}: {sample}'
)
# Load image stacks
if config['training']['experiment'] == '3D':
mask, files_mask = load(str(args.mask_path / sample),
axis=(0, 2, 1),
rgb=False,
n_jobs=args.n_threads)
pred, files_pred = load(str(args.pred_path / snap.name /
sample),
axis=(0, 2, 1),
rgb=False,
n_jobs=args.n_threads)
data, files_data = load(str(args.image_path / sample),
axis=(0, 2, 1),
rgb=False,
n_jobs=args.n_threads)
# Crop in case of inconsistency
crop = min(pred.shape, mask.shape)
mask = mask[:crop[0], :crop[1], :crop[2]]
pred = pred[:crop[0], :crop[1], :crop[2]]
else:
data = cv2.imread(str(args.image_path / sample))
mask = cv2.imread(str(args.mask_path / sample),
cv2.IMREAD_GRAYSCALE)
pred = cv2.imread(str(args.pred_path / snap.name / sample),
cv2.IMREAD_GRAYSCALE)
if pred is None:
sample = sample[:-4] + '.bmp'
pred = cv2.imread(
str(args.pred_path / snap.name / sample),
cv2.IMREAD_GRAYSCALE)
elif mask is None:
mask = cv2.imread(str(args.mask_path / sample),
cv2.IMREAD_GRAYSCALE)
# Crop in case of inconsistency
crop = min(pred.shape, mask.shape)
mask = mask[:crop[0], :crop[1]]
pred = pred[:crop[0], :crop[1]]
# Evaluate metrics
conf_matrix = calculate_conf(pred.astype(np.bool),
mask.astype(np.bool),
args.n_labels)
dice = calculate_dice(conf_matrix)[1]
iou = calculate_iou(conf_matrix)[1]
sim = calculate_volumetric_similarity(conf_matrix)[1]
print(
f'Sample {sample}: dice = {dice}, IoU = {iou}, similarity = {sim}'
)
# Save predicted full mask
if config['training']['experiment'] == '3D':
print_orthogonal(
data,
invert=False,
res=3.2,
cbar=True,
savepath=str(args.save_dir /
('visualizations_' + snap.name) /
(sample + '_input.png')),
scale_factor=1500)
print_orthogonal(
data,
mask=mask,
invert=False,
res=3.2,
cbar=True,
savepath=str(args.save_dir /
('visualizations_' + snap.name) /
(sample + '_reference.png')),
scale_factor=1500)
print_orthogonal(
data,
mask=pred,
invert=False,
res=3.2,
cbar=True,
savepath=str(args.save_dir /
('visualizations_' + snap.name) /
(sample + '_prediction.png')),
scale_factor=1500)
# Update results
results['Sample'].append(sample)
results['Dice'].append(dice)
results['IoU'].append(iou)
results['Similarity'].append(sim)
except AttributeError:
print(f'Sample {sample} failing. Skipping to next one.')
continue
# Add average value to
results['Sample'].append('Average values')
results['Dice'].append(np.average(results['Dice']))
results['IoU'].append(np.average(results['IoU']))
results['Similarity'].append(np.average(results['Similarity']))
# Write to excel
writer = pd.ExcelWriter(
str(args.save_dir / ('metrics_' + str(snap.name))) + '.xlsx')
df1 = pd.DataFrame(results)
df1.to_excel(writer, sheet_name='Metrics')
writer.save()
print(
f'Metrics evaluated in {(time() - start_eval) // 60} minutes, {(time() - start_eval) % 60} seconds.'
)
'Mean thickness': [],
'Median thickness': [],
'Thickness STD': [],
'Maximum thickness': []
}
t = strftime(f'%Y_%m_%d_%H_%M')
# Loop for samples
for sample in samples:
time_sample = time()
print(f'Processing sample {sample}')
# Load prediction
pred, files = load(str(args.masks / sample), axis=(
1,
2,
0,
))
# Downscale
#pred = (ndi.zoom(pred, 0.25) > 126).astype(np.bool)
if args.plot:
print_orthogonal(pred,
savepath=str(args.th_maps / 'visualization' /
(sample + '_pred.png')))
# Median filter
pred = ndi.median_filter(pred, size=args.median)
if args.plot:
print_orthogonal(pred,
# Initialize results
results = {'Sample': [], 'Dice': [], 'IoU': [], 'Similarity': []}
# Loop for samples
(args.save_dir / ('visualizations_' + snap)).mkdir(exist_ok=True)
samples = os.listdir(str(args.mask_path))
samples.sort()
for idx, sample in enumerate(samples):
sleep(0.5)
print(f'==> Processing sample {idx + 1} of {len(samples)}: {sample}')
# Load image stacks
if 'subdir_mask' in locals():
mask, files_mask = load(str(args.mask_path / sample / subdir_mask), rgb=False, n_jobs=args.n_threads)
else:
mask, files_mask = load(str(args.mask_path / sample), axis=(0, 2, 1), rgb=False, n_jobs=args.n_threads)
if 'subdir' in locals():
pred, files_pred = load(str(args.prediction_path / snap / sample / subdir), rgb=False, n_jobs=args.n_threads)
else:
pred, files_pred = load(str(args.prediction_path / snap / sample), axis=(0, 2, 1), rgb=False, n_jobs=args.n_threads)
data, files_data = load(str(args.image_path / sample), axis=(0, 2, 1), rgb=False, n_jobs=args.n_threads)
# Crop in case of inconsistency
crop = min(pred.shape, mask.shape)
mask = mask[:crop[0], :crop[1], :crop[2]]
pred = pred[:crop[0], :crop[1], :crop[2]]
# Evaluate metrics
conf_matrix = calculate_conf(pred.astype(np.bool), mask.astype(np.bool), args.n_labels)
default='/media/dios/dios2/RabbitSegmentation/µCT/predictions_best_fold/')
parser.add_argument('--crop', type=bool, default=False)
parser.add_argument('--saved', type=bool, default=True)
parser.add_argument('--plot', type=bool, default=True)
parser.add_argument('--largest', type=bool, default=False)
args = parser.parse_args()
im_paths = os.listdir(args.dataset_root)
mask_paths = os.listdir(args.mask_dir)
for dataset in range(len(im_paths)):
# Load and set paths
i_path = args.dataset_root / im_paths[dataset]
m_path = args.mask_dir / mask_paths[dataset] / 'Largest'
im_files, data = load(str(i_path), rgb=True, uCT=True)
mask_files, mask = load(str(m_path), rgb=False, uCT=True)
# Get bounding box for masks and crop data + mask
contours = []
removed = 0
for sample in tqdm(range(len(mask)), 'Getting bounding boxes'):
try:
bbox, contour = bounding_box(mask[sample - removed],
largest=args.largest)
except ValueError: # Empty mask
data.pop(sample)
mask.pop(sample)
removed += 1
continue
# Add contour to list
# Initialize results
results = {'Sample': [], 'Average thickness': []}
# Loop for samples
args.save_dir.mkdir(exist_ok=True)
#samples = os.listdir(str(args.mask_path))
samples = [os.path.basename(x) for x in glob(str(args.mask_path / '*'))]
samples.sort()
for sample in tqdm(samples, 'Analysing thickness'):
# New sample
#sample_name = sample.rsplit('_', 1)[0]
thickness_list = []
# Load image stacks
if 'subdir' in locals():
mask, files_mask = load(str(args.mask_path / sample / subdir), rgb=False, n_jobs=args.n_threads)
else:
mask, files_mask = load(str(args.mask_path / sample), rgb=False, n_jobs=args.n_threads)
for slice in range(mask.shape[0]):
img = mask[slice, :, :]
if np.max(img) == 0:
continue
# Threshold >= 125
img = cv2.threshold(img, 125, 255, cv2.THRESH_BINARY)[1]
# Calculate thickness
thickness_list.append(np.sum(img.flatten() / 255) / img.shape[1])
