def val(args, model, val_img_path, val_label_path, csv_path):
print('start val!')
dataset_val = ADE(val_img_path, val_label_path, scale=(args.crop_height, args.crop_width), mode='val')
dataloader_val = DataLoader(
dataset_val,
# this has to be 1
batch_size=1,
shuffle=True,
num_workers=args.num_workers
)
label_info = get_label_info(csv_path)
with torch.no_grad():
model.eval()
precision_record = []
for i, (data, label) in enumerate(dataloader_val):
if torch.cuda.is_available() and args.use_gpu:
data = data.cuda()
label = label.cuda()
# get RGB predict image
predict = model(data).squeeze()
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict), label_info) # predict info
# get RGB label image
label = label.squeeze()
label = reverse_one_hot(label)
label = colour_code_segmentation(np.array(label), label_info)
# compute per pixel accuracy
precision = compute_global_accuracy(predict, label)
precision_record.append(precision)
dice = np.mean(precision_record)
print('precision per pixel for validation: %.3f' % dice)
return dice
def val(args, model, dataloader, csv_path):
print('start val!')
label_info = get_label_info(csv_path)
with torch.no_grad():
model.eval()
precision_record = []
for i, (data, label) in enumerate(dataloader):
if torch.cuda.is_available() and args.use_gpu:
data = data.cuda()
label = label.cuda()
# get RGB predict image
predict = model(data).squeeze()
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict), label_info)
# get RGB label image
label = label.squeeze()
label = reverse_one_hot(label)
label = colour_code_segmentation(np.array(label), label_info)
# compute per pixel accuracy
precision = compute_global_accuracy(predict, label)
precision_record.append(precision)
dice = np.mean(precision_record)
print('precision per pixel for validation: %.3f' % dice)
return dice
def eval(model, dataloader, args, label_info):
print('start test!')
with torch.no_grad():
model.eval()
precision_record = []
tq = tqdm.tqdm(total=len(dataloader) * args.batch_size)
tq.set_description('test')
for i, (data, label) in enumerate(dataloader):
tq.update(args.batch_size)
if torch.cuda.is_available() and args.use_gpu:
data = data.cuda()
label = label.cuda()
predict = model(data).squeeze()
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict), label_info)
label = label.squeeze()
label = reverse_one_hot(label)
label = colour_code_segmentation(np.array(label), label_info)
precision = compute_global_accuracy(predict, label)
precision_record.append(precision)
precision = np.mean(precision_record)
tq.close()
print('precision for test: %.3f' % precision)
return precision
def eval(model, dataset, args, label_info):
dataloader = DataLoader(
dataset,
batch_size=1,
shuffle=False,
num_workers=4,
)
print('start test!')
with torch.no_grad():
model.eval()
precision_record = []
tq = tqdm.tqdm(total=len(dataloader) * args.batch_size)
tq.set_description('test')
for i, (data, label) in enumerate(dataloader):
tq.update(args.batch_size)
if torch.cuda.is_available() and args.use_gpu:
data = data.cuda()
label = label.cuda()
predict = model(data).squeeze()
'''
from PIL import Image
import numpy as np
temp = np.reshape(predict.detach().cpu().numpy(), (32, 640, 640))
print(type(temp))
temp = np.transpose(temp, [1, 2, 0])
temp = np.asarray(temp[:, :])
print(type(temp))
for i in range(temp):
for j in range(temp[0]):
k=max(j)
t=k.index()
temp = np.asarray(temp < 0.05)
new_im = Image.fromarray(temp)
new_im.save('l.gif')
print(predict)
'''
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict.cpu()),
label_info)
#print(predict)
#cv2.imwrite("./result/"+dataset.image_name[i]+"_R.png",predict)
label = label.squeeze()
label = reverse_one_hot(label)
label = colour_code_segmentation(np.array(label.cpu()), label_info)
precision = compute_global_accuracy(predict, label)
precision_record.append(precision)
precision = np.mean(precision_record)
tq.close()
print('precision for test: %.3f' % precision)
return precision
def predict_on_image(model, args, data, label_file, img_info):
# read csv label path
label_info = get_label_info(args.csv_path)
# pre-processing on image
label = Image.open(label_file)
label = np.array(label)
label = one_hot_it_v11_dice(label, label_info).astype(np.uint8)
label = np.transpose(label, [2, 0, 1]).astype(np.float32)
label = label.squeeze()
label = np.argmax(label, axis=0)
image = cv2.imread(data, -1)
image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
resize = iaa.Scale({'height': args.crop_height, 'width': args.crop_width})
resize_det = resize.to_deterministic()
image = resize_det.augment_image(image)
image = Image.fromarray(image).convert('RGB')
image = transforms.ToTensor()(image)
image = transforms.Normalize((0.485, 0.456, 0.406),
(0.229, 0.224, 0.225))(image).unsqueeze(0)
# predict
model.eval()
predict = model(image).squeeze()
# 512 * 512
predict = reverse_one_hot(predict)
predict_ = colour_code_segmentation(np.array(predict), label_info)
predict_ = cv2.resize(np.uint8(predict_), (512, 512))
cv2.imwrite('res/pred_' + 'img_info' + '.png',
cv2.cvtColor(np.uint8(predict_), cv2.COLOR_RGB2BGR))
diff = plot_diff(np.array(predict), label)
cv2.imwrite('res/diff_' + 'img_info' + '.png',
cv2.cvtColor(np.uint8(diff), cv2.COLOR_RGB2BGR))
def predict_on_RGB(image): # nd convenient both for img and video
# pre-processing on image
image = resize_img(image)
image = transforms.ToTensor()(image).float().unsqueeze(0)
# predict
model.eval()
predict = model(image).squeeze()
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict), label_info) # RGB
predict = predict.astype(np.uint8)
return predict
def predict_on_image(self, image):
# transform image to tensor
image = self.transform(image[:, :, ::-1]).to(self.device)
# prediction map
predict = self.model(image.unsqueeze(0)).squeeze()
# encode to class index
predict = reverse_one_hot(predict).cpu().numpy()
# encode to color code
predict = colour_code_segmentation(predict,
self.label_info).astype(np.uint8)
# get bbox output
predict, bboxes, num_people = self.bbox_output(predict)
return predict, bboxes, num_people
def predict_on_image(model, args):
# pre-processing on image
image = cv2.imread(args.data, -1)
image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
resize = iaa.Scale({'height': args.crop_height, 'width': args.crop_width})
resize_det = resize.to_deterministic()
image = resize_det.augment_image(image)
image = Image.fromarray(image).convert('RGB')
image = transforms.ToTensor()(image).unsqueeze(0)
# read csv label path
label_info = get_label_info(args.csv_path)
# predict
model.eval()
predict = model(image).squeeze()
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict), label_info)
predict = cv2.resize(np.uint8(predict), (960, 720))
cv2.imwrite(args.save_path,
cv2.cvtColor(np.uint8(predict), cv2.COLOR_RGB2BGR))
def predict_on_RGBD(image, depth): # nd convenient both for img and video
# pre-processing on image
image = resize_img(image).convert('RGB')
image = transforms.ToTensor()(image).float().unsqueeze(0)
depth = resize_depth(depth)
depth = np.array(depth)
depth = depth[:, :, np.newaxis]
depth = depth / 255
depth = transforms.ToTensor()(depth).float().unsqueeze(0)
rgbd = torch.cat((image, depth), 1)
# predict
model.eval()
predict = model(rgbd).squeeze()
predict = reverse_one_hot(predict)
predict = colour_code_segmentation(np.array(predict), label_info)
predict = np.uint8(predict)
return cv2.cvtColor(np.uint8(predict), cv2.COLOR_RGB2BGR)
def predict_on_image(model, args, image):
'''
run inference and return the resultant image
'''
# pre-processing on image
image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
resize = iaa.Scale({'height': args.crop_height, 'width': args.crop_width})
resize_det = resize.to_deterministic()
image = resize_det.augment_image(image)
image = Image.fromarray(image).convert('RGB')
image = transforms.ToTensor()(image)
image = transforms.Normalize((0.485, 0.456, 0.406),
(0.229, 0.224, 0.225))(image).unsqueeze(0)
# read csv label path
label_info = get_label_info(args.csv_path)
# predict
model.eval()
predict = model(image).squeeze()
predict = reverse_one_hot(predict)
# predict = colour_code_segmentation(np.array(predict), label_info)
predict = colour_code_segmentation(np.array(predict.cpu()), label_info)
predict = cv2.resize(np.uint8(predict), (960, 720))
# cv2.imwrite(args.save_path, cv2.cvtColor(np.uint8(predict), cv2.COLOR_RGB2BGR))
return predict
def val_out(self,
sess,
val_init,
threshold=0.5,
output_dir="val",
epoch=0):
print("validation starts.")
save_dir = output_dir + "/%d" % (epoch)
if not os.path.exists(save_dir):
os.mkdir(save_dir)
target = open(save_dir + "/val_scores.csv", 'w')
target.write(
"val_name, avg_accuracy, precision, recall, f1 score, mean iou, %s\n"
% (self.name_string))
sess.run(val_init)
#for ind in range(self.num_val):
scores_list = []
class_scores_list = []
precision_list = []
recall_list = []
f1_list = []
iou_list = []
try:
while True:
img, ann, output_image = sess.run(
[self.img, self.mask, self.logits])
img = img[0, :, :, :] * 255
ann = np.array(ann[0, :, :, :])
ann = reverse_one_hot(ann)
path, size = sess.run([self.path, self.size])
size = (size[0][0], size[0][1])
output_single_image = np.array(output_image)
output_single_image = np.array(output_single_image[0, :, :, :])
output_image = reverse_one_hot(output_single_image)
out_vis_image = colour_code_segmentation(
output_image, self.label_values)
accuracy, class_accuracies, prec, rec, f1, iou = evaluate_segmentation(
pred=output_image, label=ann, num_classes=self.num_classes)
dir = path[0].decode('ascii')
file_name = filepath_to_name(dir)
target.write("%s, %f, %f, %f, %f, %f" %
(file_name, accuracy, prec, rec, f1, iou))
for item in class_accuracies:
target.write(", %f" % (item))
target.write("\n")
mask = colour_code_segmentation(ann, self.label_values)
mask = cv2.cvtColor(np.uint8(mask), cv2.COLOR_RGB2BGR)
out_vis_image = cv2.cvtColor(np.uint8(out_vis_image),
cv2.COLOR_RGB2BGR)
mask, ori_out_vis = resizeImage(mask, out_vis_image, size)
out_vis_image = cv2.resize(ori_out_vis[:, :, 1],
size,
interpolation=cv2.INTER_NEAREST)
out_vis_image[out_vis_image < threshold * 255] = 0
out_vis_image[out_vis_image >= threshold * 255] = 255
save_ori_img = cv2.cvtColor(np.uint8(img), cv2.COLOR_RGB2BGR)
save_ori_img = cv2.resize(save_ori_img,
size,
interpolation=cv2.INTER_NEAREST)
transparent_image = np.append(np.array(save_ori_img)[:, :,
0:3],
out_vis_image[:, :, None],
axis=-1)
# transparent_image = Image.fromarray(transparent_image)
cv2.imwrite(save_dir + "/%s_img.jpg" % (file_name),
save_ori_img)
cv2.imwrite(save_dir + "/%s_ann.png" % (file_name), mask)
cv2.imwrite(save_dir + "/%s_ori_pred.png" % (file_name),
ori_out_vis)
cv2.imwrite(save_dir + "/%s_filter_pred.png" % (file_name),
out_vis_image)
cv2.imwrite(save_dir + "/%s_mat.png" % (file_name),
transparent_image)
scores_list.append(accuracy)
class_scores_list.append(class_accuracies)
precision_list.append(prec)
recall_list.append(rec)
f1_list.append(f1)
iou_list.append(iou)
except tf.errors.OutOfRangeError:
avg_score = np.mean(scores_list)
class_avg_scores = np.mean(class_scores_list, axis=0)
avg_precision = np.mean(precision_list)
avg_recall = np.mean(recall_list)
avg_f1 = np.mean(f1_list)
avg_iou = np.mean(iou_list)
print("\nAverage validation accuracy for epoch # %04d = %f" %
(epoch, avg_score))
print("Average per class validation accuracies for epoch # %04d:" %
(epoch))
for index, item in enumerate(class_avg_scores):
print("%s = %f" % (self.name_list[index], item))
print("Validation precision = ", avg_precision)
print("Validation recall = ", avg_recall)
print("Validation F1 score = ", avg_f1)
print("Validation IoU score = ", avg_iou)