mirror of
https://github.com/qurator-spk/sbb_pixelwise_segmentation.git
synced 2025-06-09 11:50:04 +02:00
integrating first working classification training model
This commit is contained in:
vahidrezanezhad
parent
d27647a0f1
commit
dbb84507ed
5 changed files with 419 additions and 158 deletions
374
train.py
374
train.py
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@ -11,6 +11,7 @@ from metrics import *
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from tensorflow.keras.models import load_model
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from tqdm import tqdm
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import json
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from sklearn.metrics import f1_score
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def configuration():
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@ -73,6 +74,8 @@ def config_params():
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is_loss_soft_dice = False # Use soft dice as loss function. When set to true, "weighted_loss" must be false.
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weighted_loss = False # Use weighted categorical cross entropy as loss fucntion. When set to true, "is_loss_soft_dice" must be false.
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data_is_provided = False # Only set this to true when you have already provided the input data and the train and eval data are in "dir_output".
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task = "segmentation" # This parameter defines task of model which can be segmentation, enhancement or classification.
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f1_threshold_classification = None # This threshold is used to consider models with an evaluation f1 scores bigger than it. The selected model weights undergo a weights ensembling. And avreage ensembled model will be written to output.
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@ex.automain
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@ -86,162 +89,239 @@ def run(_config, n_classes, n_epochs, input_height,
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scaling_brightness, scaling_binarization, rotation, rotation_not_90,
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thetha, scaling_flip, continue_training, transformer_patchsize,
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num_patches_xy, model_name, flip_index, dir_eval, dir_output,
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pretraining, learning_rate):
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pretraining, learning_rate, task, f1_threshold_classification):
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num_patches = num_patches_xy[0]*num_patches_xy[1]
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if data_is_provided:
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dir_train_flowing = os.path.join(dir_output, 'train')
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dir_eval_flowing = os.path.join(dir_output, 'eval')
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dir_flow_train_imgs = os.path.join(dir_train_flowing, 'images')
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dir_flow_train_labels = os.path.join(dir_train_flowing, 'labels')
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dir_flow_eval_imgs = os.path.join(dir_eval_flowing, 'images')
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dir_flow_eval_labels = os.path.join(dir_eval_flowing, 'labels')
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configuration()
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else:
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dir_img, dir_seg = get_dirs_or_files(dir_train)
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dir_img_val, dir_seg_val = get_dirs_or_files(dir_eval)
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# make first a directory in output for both training and evaluations in order to flow data from these directories.
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dir_train_flowing = os.path.join(dir_output, 'train')
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dir_eval_flowing = os.path.join(dir_output, 'eval')
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dir_flow_train_imgs = os.path.join(dir_train_flowing, 'images/')
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dir_flow_train_labels = os.path.join(dir_train_flowing, 'labels/')
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dir_flow_eval_imgs = os.path.join(dir_eval_flowing, 'images/')
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dir_flow_eval_labels = os.path.join(dir_eval_flowing, 'labels/')
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if os.path.isdir(dir_train_flowing):
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os.system('rm -rf ' + dir_train_flowing)
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os.makedirs(dir_train_flowing)
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else:
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os.makedirs(dir_train_flowing)
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if os.path.isdir(dir_eval_flowing):
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os.system('rm -rf ' + dir_eval_flowing)
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os.makedirs(dir_eval_flowing)
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else:
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os.makedirs(dir_eval_flowing)
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os.mkdir(dir_flow_train_imgs)
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os.mkdir(dir_flow_train_labels)
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os.mkdir(dir_flow_eval_imgs)
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os.mkdir(dir_flow_eval_labels)
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# set the gpu configuration
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configuration()
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if task == "segmentation":
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imgs_list=np.array(os.listdir(dir_img))
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segs_list=np.array(os.listdir(dir_seg))
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imgs_list_test=np.array(os.listdir(dir_img_val))
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segs_list_test=np.array(os.listdir(dir_seg_val))
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# writing patches into a sub-folder in order to be flowed from directory.
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provide_patches(imgs_list, segs_list, dir_img, dir_seg, dir_flow_train_imgs,
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dir_flow_train_labels, input_height, input_width, blur_k,
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blur_aug, padding_white, padding_black, flip_aug, binarization,
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scaling, degrading, brightening, scales, degrade_scales, brightness,
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flip_index, scaling_bluring, scaling_brightness, scaling_binarization,
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rotation, rotation_not_90, thetha, scaling_flip, augmentation=augmentation,
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patches=patches)
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provide_patches(imgs_list_test, segs_list_test, dir_img_val, dir_seg_val,
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dir_flow_eval_imgs, dir_flow_eval_labels, input_height, input_width,
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blur_k, blur_aug, padding_white, padding_black, flip_aug, binarization,
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scaling, degrading, brightening, scales, degrade_scales, brightness,
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flip_index, scaling_bluring, scaling_brightness, scaling_binarization,
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rotation, rotation_not_90, thetha, scaling_flip, augmentation=False, patches=patches)
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if weighted_loss:
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weights = np.zeros(n_classes)
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num_patches = num_patches_xy[0]*num_patches_xy[1]
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if data_is_provided:
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for obj in os.listdir(dir_flow_train_labels):
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try:
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label_obj = cv2.imread(dir_flow_train_labels + '/' + obj)
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label_obj_one_hot = get_one_hot(label_obj, label_obj.shape[0], label_obj.shape[1], n_classes)
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weights += (label_obj_one_hot.sum(axis=0)).sum(axis=0)
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except:
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pass
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dir_train_flowing = os.path.join(dir_output, 'train')
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dir_eval_flowing = os.path.join(dir_output, 'eval')
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dir_flow_train_imgs = os.path.join(dir_train_flowing, 'images')
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dir_flow_train_labels = os.path.join(dir_train_flowing, 'labels')
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dir_flow_eval_imgs = os.path.join(dir_eval_flowing, 'images')
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dir_flow_eval_labels = os.path.join(dir_eval_flowing, 'labels')
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configuration()
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else:
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dir_img, dir_seg = get_dirs_or_files(dir_train)
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dir_img_val, dir_seg_val = get_dirs_or_files(dir_eval)
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for obj in os.listdir(dir_seg):
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try:
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label_obj = cv2.imread(dir_seg + '/' + obj)
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label_obj_one_hot = get_one_hot(label_obj, label_obj.shape[0], label_obj.shape[1], n_classes)
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weights += (label_obj_one_hot.sum(axis=0)).sum(axis=0)
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except:
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pass
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# make first a directory in output for both training and evaluations in order to flow data from these directories.
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dir_train_flowing = os.path.join(dir_output, 'train')
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dir_eval_flowing = os.path.join(dir_output, 'eval')
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weights = 1.00 / weights
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dir_flow_train_imgs = os.path.join(dir_train_flowing, 'images/')
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dir_flow_train_labels = os.path.join(dir_train_flowing, 'labels/')
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weights = weights / float(np.sum(weights))
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weights = weights / float(np.min(weights))
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weights = weights / float(np.sum(weights))
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dir_flow_eval_imgs = os.path.join(dir_eval_flowing, 'images/')
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dir_flow_eval_labels = os.path.join(dir_eval_flowing, 'labels/')
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if continue_training:
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if model_name=='resnet50_unet':
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if is_loss_soft_dice:
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model = load_model(dir_of_start_model, compile=True, custom_objects={'soft_dice_loss': soft_dice_loss})
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if weighted_loss:
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model = load_model(dir_of_start_model, compile=True, custom_objects={'loss': weighted_categorical_crossentropy(weights)})
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if not is_loss_soft_dice and not weighted_loss:
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model = load_model(dir_of_start_model , compile=True)
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elif model_name=='hybrid_transformer_cnn':
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if is_loss_soft_dice:
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model = load_model(dir_of_start_model, compile=True, custom_objects={"PatchEncoder": PatchEncoder, "Patches": Patches,'soft_dice_loss': soft_dice_loss})
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if weighted_loss:
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model = load_model(dir_of_start_model, compile=True, custom_objects={'loss': weighted_categorical_crossentropy(weights)})
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if not is_loss_soft_dice and not weighted_loss:
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model = load_model(dir_of_start_model , compile=True,custom_objects = {"PatchEncoder": PatchEncoder, "Patches": Patches})
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else:
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index_start = 0
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if model_name=='resnet50_unet':
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model = resnet50_unet(n_classes, input_height, input_width,weight_decay,pretraining)
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elif model_name=='hybrid_transformer_cnn':
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model = vit_resnet50_unet(n_classes, transformer_patchsize, num_patches, input_height, input_width,weight_decay,pretraining)
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#if you want to see the model structure just uncomment model summary.
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#model.summary()
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if os.path.isdir(dir_train_flowing):
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os.system('rm -rf ' + dir_train_flowing)
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os.makedirs(dir_train_flowing)
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else:
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os.makedirs(dir_train_flowing)
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if not is_loss_soft_dice and not weighted_loss:
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if os.path.isdir(dir_eval_flowing):
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os.system('rm -rf ' + dir_eval_flowing)
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os.makedirs(dir_eval_flowing)
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else:
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os.makedirs(dir_eval_flowing)
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os.mkdir(dir_flow_train_imgs)
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os.mkdir(dir_flow_train_labels)
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os.mkdir(dir_flow_eval_imgs)
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os.mkdir(dir_flow_eval_labels)
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# set the gpu configuration
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configuration()
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imgs_list=np.array(os.listdir(dir_img))
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segs_list=np.array(os.listdir(dir_seg))
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imgs_list_test=np.array(os.listdir(dir_img_val))
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segs_list_test=np.array(os.listdir(dir_seg_val))
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# writing patches into a sub-folder in order to be flowed from directory.
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provide_patches(imgs_list, segs_list, dir_img, dir_seg, dir_flow_train_imgs,
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dir_flow_train_labels, input_height, input_width, blur_k,
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blur_aug, padding_white, padding_black, flip_aug, binarization,
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scaling, degrading, brightening, scales, degrade_scales, brightness,
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flip_index, scaling_bluring, scaling_brightness, scaling_binarization,
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rotation, rotation_not_90, thetha, scaling_flip, augmentation=augmentation,
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patches=patches)
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provide_patches(imgs_list_test, segs_list_test, dir_img_val, dir_seg_val,
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dir_flow_eval_imgs, dir_flow_eval_labels, input_height, input_width,
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blur_k, blur_aug, padding_white, padding_black, flip_aug, binarization,
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scaling, degrading, brightening, scales, degrade_scales, brightness,
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flip_index, scaling_bluring, scaling_brightness, scaling_binarization,
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rotation, rotation_not_90, thetha, scaling_flip, augmentation=False, patches=patches)
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if weighted_loss:
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weights = np.zeros(n_classes)
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if data_is_provided:
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for obj in os.listdir(dir_flow_train_labels):
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try:
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label_obj = cv2.imread(dir_flow_train_labels + '/' + obj)
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label_obj_one_hot = get_one_hot(label_obj, label_obj.shape[0], label_obj.shape[1], n_classes)
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weights += (label_obj_one_hot.sum(axis=0)).sum(axis=0)
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except:
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pass
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else:
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for obj in os.listdir(dir_seg):
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try:
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label_obj = cv2.imread(dir_seg + '/' + obj)
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label_obj_one_hot = get_one_hot(label_obj, label_obj.shape[0], label_obj.shape[1], n_classes)
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weights += (label_obj_one_hot.sum(axis=0)).sum(axis=0)
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except:
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pass
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weights = 1.00 / weights
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weights = weights / float(np.sum(weights))
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weights = weights / float(np.min(weights))
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weights = weights / float(np.sum(weights))
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if continue_training:
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if model_name=='resnet50_unet':
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if is_loss_soft_dice:
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model = load_model(dir_of_start_model, compile=True, custom_objects={'soft_dice_loss': soft_dice_loss})
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if weighted_loss:
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model = load_model(dir_of_start_model, compile=True, custom_objects={'loss': weighted_categorical_crossentropy(weights)})
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if not is_loss_soft_dice and not weighted_loss:
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model = load_model(dir_of_start_model , compile=True)
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elif model_name=='hybrid_transformer_cnn':
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if is_loss_soft_dice:
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model = load_model(dir_of_start_model, compile=True, custom_objects={"PatchEncoder": PatchEncoder, "Patches": Patches,'soft_dice_loss': soft_dice_loss})
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if weighted_loss:
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model = load_model(dir_of_start_model, compile=True, custom_objects={'loss': weighted_categorical_crossentropy(weights)})
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if not is_loss_soft_dice and not weighted_loss:
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model = load_model(dir_of_start_model , compile=True,custom_objects = {"PatchEncoder": PatchEncoder, "Patches": Patches})
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else:
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index_start = 0
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if model_name=='resnet50_unet':
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model = resnet50_unet(n_classes, input_height, input_width,weight_decay,pretraining)
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elif model_name=='hybrid_transformer_cnn':
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model = vit_resnet50_unet(n_classes, transformer_patchsize, num_patches, input_height, input_width,weight_decay,pretraining)
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#if you want to see the model structure just uncomment model summary.
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#model.summary()
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if not is_loss_soft_dice and not weighted_loss:
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model.compile(loss='categorical_crossentropy',
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optimizer=Adam(lr=learning_rate), metrics=['accuracy'])
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if is_loss_soft_dice:
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model.compile(loss=soft_dice_loss,
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optimizer=Adam(lr=learning_rate), metrics=['accuracy'])
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if weighted_loss:
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model.compile(loss=weighted_categorical_crossentropy(weights),
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optimizer=Adam(lr=learning_rate), metrics=['accuracy'])
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# generating train and evaluation data
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train_gen = data_gen(dir_flow_train_imgs, dir_flow_train_labels, batch_size=n_batch,
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input_height=input_height, input_width=input_width, n_classes=n_classes)
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val_gen = data_gen(dir_flow_eval_imgs, dir_flow_eval_labels, batch_size=n_batch,
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input_height=input_height, input_width=input_width, n_classes=n_classes)
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##img_validation_patches = os.listdir(dir_flow_eval_imgs)
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##score_best=[]
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##score_best.append(0)
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for i in tqdm(range(index_start, n_epochs + index_start)):
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model.fit_generator(
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train_gen,
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steps_per_epoch=int(len(os.listdir(dir_flow_train_imgs)) / n_batch) - 1,
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validation_data=val_gen,
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validation_steps=1,
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epochs=1)
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model.save(dir_output+'/'+'model_'+str(i))
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with open(dir_output+'/'+'model_'+str(i)+'/'+"config.json", "w") as fp:
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json.dump(_config, fp) # encode dict into JSON
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#os.system('rm -rf '+dir_train_flowing)
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#os.system('rm -rf '+dir_eval_flowing)
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#model.save(dir_output+'/'+'model'+'.h5')
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elif task=='classification':
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configuration()
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model = resnet50_classifier(n_classes, input_height, input_width,weight_decay,pretraining)
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opt_adam = Adam(learning_rate=0.001)
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model.compile(loss='categorical_crossentropy',
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optimizer=Adam(lr=learning_rate), metrics=['accuracy'])
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if is_loss_soft_dice:
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model.compile(loss=soft_dice_loss,
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optimizer=Adam(lr=learning_rate), metrics=['accuracy'])
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if weighted_loss:
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model.compile(loss=weighted_categorical_crossentropy(weights),
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optimizer=Adam(lr=learning_rate), metrics=['accuracy'])
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# generating train and evaluation data
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train_gen = data_gen(dir_flow_train_imgs, dir_flow_train_labels, batch_size=n_batch,
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input_height=input_height, input_width=input_width, n_classes=n_classes)
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val_gen = data_gen(dir_flow_eval_imgs, dir_flow_eval_labels, batch_size=n_batch,
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input_height=input_height, input_width=input_width, n_classes=n_classes)
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##img_validation_patches = os.listdir(dir_flow_eval_imgs)
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##score_best=[]
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##score_best.append(0)
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for i in tqdm(range(index_start, n_epochs + index_start)):
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model.fit_generator(
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train_gen,
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steps_per_epoch=int(len(os.listdir(dir_flow_train_imgs)) / n_batch) - 1,
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validation_data=val_gen,
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validation_steps=1,
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epochs=1)
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model.save(dir_output+'/'+'model_'+str(i))
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with open(dir_output+'/'+'model_'+str(i)+'/'+"config.json", "w") as fp:
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json.dump(_config, fp) # encode dict into JSON
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optimizer = opt_adam,metrics=['accuracy'])
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#os.system('rm -rf '+dir_train_flowing)
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#os.system('rm -rf '+dir_eval_flowing)
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#model.save(dir_output+'/'+'model'+'.h5')
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testX, testY = generate_data_from_folder_evaluation(dir_eval, input_height, input_width, n_classes)
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#print(testY.shape, testY)
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y_tot=np.zeros((testX.shape[0],n_classes))
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indexer=0
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score_best=[]
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score_best.append(0)
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num_rows = return_number_of_total_training_data(dir_train)
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weights=[]
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for i in range(n_epochs):
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#history = model.fit(trainX, trainY, epochs=1, batch_size=n_batch, validation_data=(testX, testY), verbose=2)#,class_weight=weights)
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history = model.fit( generate_data_from_folder_training(dir_train, n_batch , input_height, input_width, n_classes), steps_per_epoch=num_rows / n_batch, verbose=0)#,class_weight=weights)
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y_pr_class = []
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for jj in range(testY.shape[0]):
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y_pr=model.predict(testX[jj,:,:,:].reshape(1,input_height,input_width,3), verbose=0)
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y_pr_ind= np.argmax(y_pr,axis=1)
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#print(y_pr_ind, 'y_pr_ind')
|
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y_pr_class.append(y_pr_ind)
|
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|
||||
|
||||
y_pr_class = np.array(y_pr_class)
|
||||
#model.save('./models_save/model_'+str(i)+'.h5')
|
||||
#y_pr_class=np.argmax(y_pr,axis=1)
|
||||
f1score=f1_score(np.argmax(testY,axis=1), y_pr_class, average='macro')
|
||||
|
||||
print(i,f1score)
|
||||
|
||||
if f1score>score_best[0]:
|
||||
score_best[0]=f1score
|
||||
model.save(os.path.join(dir_output,'model_best'))
|
||||
|
||||
|
||||
##best_model=keras.models.clone_model(model)
|
||||
##best_model.build()
|
||||
##best_model.set_weights(model.get_weights())
|
||||
if f1score > f1_threshold_classification:
|
||||
weights.append(model.get_weights() )
|
||||
y_tot=y_tot+y_pr
|
||||
|
||||
indexer+=1
|
||||
y_tot=y_tot/float(indexer)
|
||||
|
||||
|
||||
new_weights=list()
|
||||
|
||||
for weights_list_tuple in zip(*weights):
|
||||
new_weights.append( [np.array(weights_).mean(axis=0) for weights_ in zip(*weights_list_tuple)] )
|
||||
|
||||
new_weights = [np.array(x) for x in new_weights]
|
||||
|
||||
model_weight_averaged=tf.keras.models.clone_model(model)
|
||||
|
||||
model_weight_averaged.set_weights(new_weights)
|
||||
|
||||
#y_tot_end=np.argmax(y_tot,axis=1)
|
||||
#print(f1_score(np.argmax(testY,axis=1), y_tot_end, average='macro'))
|
||||
|
||||
##best_model.save('model_taza.h5')
|
||||
model_weight_averaged.save(os.path.join(dir_output,'model_ens_avg'))
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue