Merge pull request #31 from LielinJiang/transforms

Reproduce transforms module

applications/first_order_model/configs/vox-256.yaml

-dataset_params:
-  root_dir: data/vox-png
-  frame_shape: [256, 256, 3]
-  id_sampling: True
-  pairs_list: data/vox256.csv
-  augmentation_params:
-    flip_param:
-      horizontal_flip: True
-      time_flip: True
-    jitter_param:
-      brightness: 0.1
-      contrast: 0.1
-      saturation: 0.1
-      hue: 0.1
-
-
 model_params:
   common_params:
     num_kp: 10
@@ -42,42 +26,3 @@ model_params:
     max_features: 512
     num_blocks: 4
     sn: True
-
-train_params:
-  num_epochs: 100
-  num_repeats: 75
-  epoch_milestones: [60, 90]
-  lr_generator: 2.0e-4
-  lr_discriminator: 2.0e-4
-  lr_kp_detector: 2.0e-4
-  batch_size: 40
-  scales: [1, 0.5, 0.25, 0.125]
-  checkpoint_freq: 50
-  transform_params:
-    sigma_affine: 0.05
-    sigma_tps: 0.005
-    points_tps: 5
-  loss_weights:
-    generator_gan: 0
-    discriminator_gan: 1
-    feature_matching: [10, 10, 10, 10]
-    perceptual: [10, 10, 10, 10, 10]
-    equivariance_value: 10
-    equivariance_jacobian: 10
-
-reconstruction_params:
-  num_videos: 1000
-  format: '.mp4'
-
-animate_params:
-  num_pairs: 50
-  format: '.mp4'
-  normalization_params:
-    adapt_movement_scale: False
-    use_relative_movement: True
-    use_relative_jacobian: True
-
-visualizer_params:
-  kp_size: 5
-  draw_border: True
-  colormap: 'gist_rainbow'

applications/tools/first-order-demo.py

+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import matplotlib
 matplotlib.use('Agg')
 import os
@@ -5,20 +19,20 @@ import sys
 
 import yaml
 import pickle
-from argparse import ArgumentParser
-from tqdm import tqdm
-
 import imageio
 import numpy as np
-from skimage.transform import resize
+
+from tqdm import tqdm
 from skimage import img_as_ubyte
-import paddle
+from argparse import ArgumentParser
+from skimage.transform import resize
+from scipy.spatial import ConvexHull
 
 from ppgan.models.generators.occlusion_aware import OcclusionAwareGenerator
 from ppgan.modules.keypoint_detector import KPDetector
 from ppgan.utils.animate import normalize_kp
-from scipy.spatial import ConvexHull
 
+import paddle
 paddle.disable_static()
 
 if sys.version_info[0] < 3:
@@ -60,8 +74,7 @@ def make_animation(source_image,
         predictions = []
         source = paddle.to_tensor(source_image[np.newaxis].astype(
             np.float32)).transpose([0, 3, 1, 2])
-        # if not cpu:
-        #     source = source.cuda()
+
         driving = paddle.to_tensor(
             np.array(driving_video)[np.newaxis].astype(np.float32)).transpose(
                 [0, 4, 1, 2, 3])

applications/tools/video-enhance.py

+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import sys
 sys.path.append('.')
 

configs/cyclegan_cityscapes.yaml

@@ -36,16 +36,18 @@ dataset:
     output_nc: 3
     serial_batches: False
     pool_size: 50
-    transform:
-      load_size: 286
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: False
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [286, 286]
+        interpolation: 2 #cv2.INTER_CUBIC
+      - name: RandomCrop
+        output_size: [256, 256]
+      - name: RandomHorizontalFlip
+        prob: 0.5
+      - name: Permute
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
   test:
     name: SingleDataset
     dataroot: data/cityscapes/testB
@@ -55,17 +57,14 @@ dataset:
     output_nc: 3
     serial_batches: False
     pool_size: 50
-    transform:
-      load_size: 256
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: True
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
-
+    transforms:
+      - name: Resize
+        size: [256, 256]
+        interpolation: 2 #cv2.INTER_CUBIC
+      - name: Permute
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
 
 optimizer:
   name: Adam

configs/cyclegan_horse2zebra.yaml

@@ -35,16 +35,18 @@ dataset:
     output_nc: 3
     serial_batches: False
     pool_size: 50
-    transform:
-      load_size: 286
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: False
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [286, 286]
+        interpolation: 2 #cv2.INTER_CUBIC
+      - name: RandomCrop
+        output_size: [256, 256]
+      - name: RandomHorizontalFlip
+        prob: 0.5
+      - name: Permute
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
   test:
     name: SingleDataset
     dataroot: data/horse2zebra/testA
@@ -55,15 +57,14 @@ dataset:
     serial_batches: False
     pool_size: 50
     transform:
-      load_size: 256
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: True
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+      transform:
+      - name: Resize
+        size: [256, 256]
+        interpolation: 2 #cv2.INTER_CUBIC
+      - name: Permute
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
 
 optimizer:
   name: Adam

configs/pix2pix_cityscapes.yaml

@@ -33,16 +33,23 @@ dataset:
     output_nc: 3
     serial_batches: False
     pool_size: 0
-    transform:
-      load_size: 286
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: False
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [286, 286]
+        interpolation: 2 #cv2.INTER_CUBIC
+        keys: [image, image]
+      - name: PairedRandomCrop
+        output_size: [256, 256]
+        keys: [image, image]
+      - name: PairedRandomHorizontalFlip
+        prob: 0.5
+        keys: [image, image]
+      - name: Permute
+        keys: [image, image]
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
+        keys: [image, image]
   test:
     name: PairedDataset
     dataroot: data/cityscapes/
@@ -53,16 +60,18 @@ dataset:
     output_nc: 3
     serial_batches: True
     pool_size: 50
-    transform:
-      load_size: 256
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: True
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [256, 256]
+        interpolation: 2 #cv2.INTER_CUBIC
+        keys: [image, image]
+      - name: Permute
+        keys: [image, image]
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
+        keys: [image, image]
+
 
 optimizer:
   name: Adam

configs/pix2pix_cityscapes_2gpus.yaml

@@ -32,16 +32,23 @@ dataset:
     output_nc: 3
     serial_batches: False
     pool_size: 0
-    transform:
-      load_size: 286
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: False
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [286, 286]
+        interpolation: 2 #cv2.INTER_CUBIC
+        keys: [image, image]
+      - name: PairedRandomCrop
+        output_size: [256, 256]
+        keys: [image, image]
+      - name: PairedRandomHorizontalFlip
+        prob: 0.5
+        keys: [image, image]
+      - name: Permute
+        keys: [image, image]
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
+        keys: [image, image]
   test:
     name: PairedDataset
     dataroot: data/cityscapes/
@@ -52,16 +59,17 @@ dataset:
     output_nc: 3
     serial_batches: True
     pool_size: 50
-    transform:
-      load_size: 256
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: True
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [256, 256]
+        interpolation: 2 #cv2.INTER_CUBIC
+        keys: [image, image]
+      - name: Permute
+        keys: [image, image]
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
+        keys: [image, image]
 
 optimizer:
   name: Adam

configs/pix2pix_facades.yaml

@@ -32,16 +32,23 @@ dataset:
     output_nc: 3
     serial_batches: False
     pool_size: 0
-    transform:
-      load_size: 286
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: False
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [286, 286]
+        interpolation: 2 #cv2.INTER_CUBIC
+        keys: [image, image]
+      - name: PairedRandomCrop
+        output_size: [256, 256]
+        keys: [image, image]
+      - name: PairedRandomHorizontalFlip
+        prob: 0.5
+        keys: [image, image]
+      - name: Permute
+        keys: [image, image]
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
+        keys: [image, image]
   test:
     name: PairedDataset
     dataroot: data/facades/
@@ -52,16 +59,17 @@ dataset:
     output_nc: 3
     serial_batches: True
     pool_size: 50
-    transform:
-      load_size: 256
-      crop_size: 256
-      preprocess: resize_and_crop
-      no_flip: True
-      normalize:
-        mean:
-          (127.5, 127.5, 127.5)
-        std:
-          (127.5, 127.5, 127.5)
+    transforms:
+      - name: Resize
+        size: [256, 256]
+        interpolation: 2 #cv2.INTER_CUBIC
+        keys: [image, image]
+      - name: Permute
+        keys: [image, image]
+      - name: Normalize
+        mean: [127.5, 127.5, 127.5]
+        std: [127.5, 127.5, 127.5]
+        keys: [image, image]
 
 optimizer:
   name: Adam

ppgan/datasets/paired_dataset.py

@@ -5,13 +5,13 @@ from .base_dataset import BaseDataset, get_params, get_transform
 from .image_folder import make_dataset
 
 from .builder import DATASETS
+from .transforms.builder import build_transforms
 
 
 @DATASETS.register()
 class PairedDataset(BaseDataset):
     """A dataset class for paired image dataset.
     """
-
     def __init__(self, cfg):
         """Initialize this dataset class.
 
@@ -19,11 +19,14 @@ class PairedDataset(BaseDataset):
             cfg (dict) -- stores all the experiment flags
         """
         BaseDataset.__init__(self, cfg)
-        self.dir_AB = os.path.join(cfg.dataroot, cfg.phase)  # get the image directory
-        self.AB_paths = sorted(make_dataset(self.dir_AB, cfg.max_dataset_size))  # get image paths
-        assert(self.cfg.transform.load_size >= self.cfg.transform.crop_size)   # crop_size should be smaller than the size of loaded image
+        self.dir_AB = os.path.join(cfg.dataroot,
+                                   cfg.phase)  # get the image directory
+        self.AB_paths = sorted(make_dataset(
+            self.dir_AB, cfg.max_dataset_size))  # get image paths
+
         self.input_nc = self.cfg.output_nc if self.cfg.direction == 'BtoA' else self.cfg.input_nc
         self.output_nc = self.cfg.input_nc if self.cfg.direction == 'BtoA' else self.cfg.output_nc
+        self.transforms = build_transforms(cfg.transforms)
 
     def __getitem__(self, index):
         """Return a data point and its metadata information.
@@ -49,27 +52,11 @@ class PairedDataset(BaseDataset):
         A = AB[:h, :w2, :]
         B = AB[:h, w2:, :]
 
-
         # apply the same transform to both A and B
-        # transform_params = get_params(self.opt, A.size)
-        transform_params = get_params(self.cfg.transform, (w2, h))
-
-        A_transform = get_transform(self.cfg.transform, transform_params, grayscale=(self.input_nc == 1))
-        B_transform = get_transform(self.cfg.transform, transform_params, grayscale=(self.output_nc == 1))
-
-        A = A_transform(A)
-        B = B_transform(B)
+        A, B = self.transforms((A, B))
 
         return {'A': A, 'B': B, 'A_paths': AB_path, 'B_paths': AB_path}
 
     def __len__(self):
         """Return the total number of images in the dataset."""
         return len(self.AB_paths)
-
-    def get_path_by_indexs(self, indexs):
-        if isinstance(indexs, paddle.Variable):
-            indexs = indexs.numpy()
-        current_paths = []
-        for index in indexs:
-            current_paths.append(self.AB_paths[index])
-        return current_paths

ppgan/datasets/transforms/__init__.py

+from .transforms import RandomCrop, Resize, RandomHorizontalFlip, PairedRandomCrop, PairedRandomHorizontalFlip, Normalize, Permute

ppgan/datasets/transforms/builder.py

+import copy
+import traceback
+import paddle
+from ...utils.registry import Registry
+
+TRANSFORMS = Registry("TRANSFORMS")
+
+
+class Compose(object):
+    """
+    Composes several transforms together use for composing list of transforms
+    together for a dataset transform.
+
+    Args:
+        transforms (list): List of transforms to compose.
+
+    Returns:
+        A compose object which is callable, __call__ for this Compose
+        object will call each given :attr:`transforms` sequencely.
+
+    """
+    def __init__(self, transforms):
+        self.transforms = transforms
+
+    def __call__(self, data):
+        for f in self.transforms:
+            try:
+                data = f(data)
+            except Exception as e:
+                stack_info = traceback.format_exc()
+                print("fail to perform transform [{}] with error: "
+                      "{} and stack:\n{}".format(f, e, str(stack_info)))
+                raise e
+        return data
+
+
+def build_transforms(cfg):
+    transforms = []
+
+    for trans_cfg in cfg:
+        temp_trans_cfg = copy.deepcopy(trans_cfg)
+        name = temp_trans_cfg.pop('name')
+        transforms.append(TRANSFORMS.get(name)(**temp_trans_cfg))
+
+    transforms = Compose(transforms)
+    return transforms

ppgan/datasets/transforms/transforms.py

+import sys
 import random
+import numbers
+import collections
+import numpy as np
 
+from paddle.utils import try_import
+import paddle.vision.transforms.functional as F
 
-class RandomCrop(object):
+from .builder import TRANSFORMS
 
-    def __init__(self, output_size):
+if sys.version_info < (3, 3):
+    Sequence = collections.Sequence
+    Iterable = collections.Iterable
+else:
+    Sequence = collections.abc.Sequence
+    Iterable = collections.abc.Iterable
+
+
+class Transform():
+    def _set_attributes(self, args):
+        """
+        Set attributes from the input list of parameters.
+
+        Args:
+            args (list): list of parameters.
+        """
+        if args:
+            for k, v in args.items():
+                if k != "self" and not k.startswith("_"):
+                    setattr(self, k, v)
+
+    def apply_image(self, input):
+        raise NotImplementedError
+
+    def __call__(self, inputs):
+        if isinstance(inputs, tuple):
+            inputs = list(inputs)
+        if self.keys is not None:
+            for i, key in enumerate(self.keys):
+                if isinstance(inputs, dict):
+                    inputs[key] = getattr(self, 'apply_' + key)(inputs[key])
+                elif isinstance(inputs, (list, tuple)):
+                    inputs[i] = getattr(self, 'apply_' + key)(inputs[i])
+        else:
+            inputs = self.apply_image(inputs)
+
+        if isinstance(inputs, list):
+            inputs = tuple(inputs)
+
+        return inputs
+
+
+@TRANSFORMS.register()
+class Resize(Transform):
+    """Resize the input Image to the given size.
+
+    Args:
+        size (int|list|tuple): Desired output size. If size is a sequence like
+            (h, w), output size will be matched to this. If size is an int,
+            smaller edge of the image will be matched to this number.
+            i.e, if height > width, then image will be rescaled to
+            (size * height / width, size)
+        interpolation (int, optional): Interpolation mode of resize. Default: 1.
+            0 : cv2.INTER_NEAREST
+            1 : cv2.INTER_LINEAR
+            2 : cv2.INTER_CUBIC
+            3 : cv2.INTER_AREA
+            4 : cv2.INTER_LANCZOS4
+            5 : cv2.INTER_LINEAR_EXACT
+            7 : cv2.INTER_MAX
+            8 : cv2.WARP_FILL_OUTLIERS
+            16: cv2.WARP_INVERSE_MAP
+
+    """
+    def __init__(self, size, interpolation=1, keys=None):
+        super().__init__()
+        assert isinstance(size, int) or (isinstance(size, Iterable)
+                                         and len(size) == 2)
+        self._set_attributes(locals())
+        if isinstance(self.size, Iterable):
+            self.size = tuple(size)
+
+    def apply_image(self, img):
+        return F.resize(img, self.size, self.interpolation)
+
+
+@TRANSFORMS.register()
+class RandomCrop(Transform):
+    def __init__(self, output_size, keys=None):
+        super().__init__()
+        self._set_attributes(locals())
         if isinstance(output_size, int):
             self.output_size = (output_size, output_size)
         else:
@@ -19,12 +105,162 @@ class RandomCrop(object):
         j = random.randint(0, w - tw)
         return i, j, th, tw
 
-    def __call__(self, img):
+    def apply_image(self, img):
         i, j, h, w = self._get_params(img)
         cropped_img = img[i:i + h, j:j + w]
         return cropped_img
 
 
+@TRANSFORMS.register()
+class PairedRandomCrop(RandomCrop):
+    def __init__(self, output_size, keys=None):
+        super().__init__(output_size, keys)
+
+        if isinstance(output_size, int):
+            self.output_size = (output_size, output_size)
+        else:
+            self.output_size = output_size
+
+    def apply_image(self, img, crop_prams=None):
+        if crop_prams is not None:
+            i, j, h, w = crop_prams
+        else:
+            i, j, h, w = self._get_params(img)
+        cropped_img = img[i:i + h, j:j + w]
+        return cropped_img
+
+    def __call__(self, inputs):
+        if isinstance(inputs, tuple):
+            inputs = list(inputs)
+        if self.keys is not None:
+            if isinstance(inputs, dict):
+                crop_params = self._get_params(inputs[self.keys[0]])
+            elif isinstance(inputs, (list, tuple)):
+                crop_params = self._get_params(inputs[0])
+
+            for i, key in enumerate(self.keys):
+                if isinstance(inputs, dict):
+                    inputs[key] = getattr(self, 'apply_' + key)(inputs[key],
+                                                                crop_params)
+                elif isinstance(inputs, (list, tuple)):
+                    inputs[i] = getattr(self, 'apply_' + key)(inputs[i],
+                                                              crop_params)
+        else:
+            crop_params = self._get_params(inputs)
+            inputs = self.apply_image(inputs, crop_params)
+
+        if isinstance(inputs, list):
+            inputs = tuple(inputs)
+        return inputs
+
+
+@TRANSFORMS.register()
+class RandomHorizontalFlip(Transform):
+    """Horizontally flip the input data randomly with a given probability.
+
+    Args:
+        prob (float): Probability of the input data being flipped. Default: 0.5
+    """
+    def __init__(self, prob=0.5, keys=None):
+        super().__init__()
+        self._set_attributes(locals())
+
+    def apply_image(self, img):
+        if np.random.random() < self.prob:
+            return F.flip(img, code=1)
+        return img
+
+
+@TRANSFORMS.register()
+class PairedRandomHorizontalFlip(RandomHorizontalFlip):
+    def __init__(self, prob=0.5, keys=None):
+        super().__init__()
+        self._set_attributes(locals())
+
+    def apply_image(self, img, flip):
+        if flip:
+            return F.flip(img, code=1)
+        return img
+
+    def __call__(self, inputs):
+        if isinstance(inputs, tuple):
+            inputs = list(inputs)
+        flip = np.random.random() < self.prob
+        if self.keys is not None:
+
+            for i, key in enumerate(self.keys):
+                if isinstance(inputs, dict):
+                    inputs[key] = getattr(self, 'apply_' + key)(inputs[key],
+                                                                flip)
+                elif isinstance(inputs, (list, tuple)):
+                    inputs[i] = getattr(self, 'apply_' + key)(inputs[i], flip)
+        else:
+            inputs = self.apply_image(inputs, flip)
+
+        if isinstance(inputs, list):
+            inputs = tuple(inputs)
+
+        return inputs
+
+
+@TRANSFORMS.register()
+class Normalize(Transform):
+    """Normalize the input data with mean and standard deviation.
+    Given mean: ``(M1,...,Mn)`` and std: ``(S1,..,Sn)`` for ``n`` channels,
+    this transform will normalize each channel of the input data.
+    ``output[channel] = (input[channel] - mean[channel]) / std[channel]``
+
+    Args:
+        mean (int|float|list): Sequence of means for each channel.
+        std (int|float|list): Sequence of standard deviations for each channel.
+
+    """
+    def __init__(self, mean=0.0, std=1.0, keys=None):
+        super().__init__()
+        self._set_attributes(locals())
+
+        if isinstance(mean, numbers.Number):
+            mean = [mean, mean, mean]
+
+        if isinstance(std, numbers.Number):
+            std = [std, std, std]
+
+        self.mean = np.array(mean, dtype=np.float32).reshape(len(mean), 1, 1)
+        self.std = np.array(std, dtype=np.float32).reshape(len(std), 1, 1)
+
+    def apply_image(self, img):
+        return (img - self.mean) / self.std
+
+
+@TRANSFORMS.register()
+class Permute(Transform):
+    """Change input data to a target mode.
+    For example, most transforms use HWC mode image,
+    while the Neural Network might use CHW mode input tensor.
+    Input image should be HWC mode and an instance of numpy.ndarray.
+
+    Args:
+        mode (str): Output mode of input. Default: "CHW".
+        to_rgb (bool): Convert 'bgr' image to 'rgb'. Default: True.
+
+    """
+    def __init__(self, mode="CHW", to_rgb=True, keys=None):
+        super().__init__()
+        self._set_attributes(locals())
+        assert mode in [
+            "CHW"
+        ], "Only support 'CHW' mode, but received mode: {}".format(mode)
+        self.mode = mode
+        self.to_rgb = to_rgb
+
+    def apply_image(self, img):
+        if self.to_rgb:
+            img = img[..., ::-1]
+        if self.mode == "CHW":
+            return img.transpose((2, 0, 1))
+        return img
+
+
 class Crop():
     def __init__(self, pos, size):
         self.pos = pos
@@ -35,6 +271,6 @@ class Crop():
         x, y = self.pos
         th = tw = self.size
         if (ow > tw or oh > th):
-            return img[y: y + th, x: x + tw]
+            return img[y:y + th, x:x + tw]
 
         return img

ppgan/datasets/unpaired_dataset.py

@@ -5,13 +5,13 @@ from .base_dataset import BaseDataset, get_transform
 from .image_folder import make_dataset
 
 from .builder import DATASETS
+from .transforms.builder import build_transforms
 
 
 @DATASETS.register()
 class UnpairedDataset(BaseDataset):
     """
     """
-
     def __init__(self, cfg):
         """Initialize this dataset class.
 
@@ -19,18 +19,25 @@ class UnpairedDataset(BaseDataset):
             cfg (dict) -- stores all the experiment flags
         """
         BaseDataset.__init__(self, cfg)
-        self.dir_A = os.path.join(cfg.dataroot, cfg.phase + 'A')  # create a path '/path/to/data/trainA'
-        self.dir_B = os.path.join(cfg.dataroot, cfg.phase + 'B')  # create a path '/path/to/data/trainB'
+        self.dir_A = os.path.join(cfg.dataroot, cfg.phase +
+                                  'A')  # create a path '/path/to/data/trainA'
+        self.dir_B = os.path.join(cfg.dataroot, cfg.phase +
+                                  'B')  # create a path '/path/to/data/trainB'
 
-        self.A_paths = sorted(make_dataset(self.dir_A, cfg.max_dataset_size))   # load images from '/path/to/data/trainA'
-        self.B_paths = sorted(make_dataset(self.dir_B, cfg.max_dataset_size))    # load images from '/path/to/data/trainB'
+        self.A_paths = sorted(make_dataset(
+            self.dir_A,
+            cfg.max_dataset_size))  # load images from '/path/to/data/trainA'
+        self.B_paths = sorted(make_dataset(
+            self.dir_B,
+            cfg.max_dataset_size))  # load images from '/path/to/data/trainB'
         self.A_size = len(self.A_paths)  # get the size of dataset A
         self.B_size = len(self.B_paths)  # get the size of dataset B
         btoA = self.cfg.direction == 'BtoA'
         input_nc = self.cfg.output_nc if btoA else self.cfg.input_nc  # get the number of channels of input image
         output_nc = self.cfg.input_nc if btoA else self.cfg.output_nc  # get the number of channels of output image
-        self.transform_A = get_transform(self.cfg.transform, grayscale=(input_nc == 1))
-        self.transform_B = get_transform(self.cfg.transform, grayscale=(output_nc == 1))
+
+        self.transform_A = build_transforms(self.cfg.transforms)
+        self.transform_B = build_transforms(self.cfg.transforms)
 
         self.reset_paths()
 
@@ -49,7 +56,8 @@ class UnpairedDataset(BaseDataset):
             A_paths (str)    -- image paths
             B_paths (str)    -- image paths
         """
-        A_path = self.A_paths[index % self.A_size]  # make sure index is within then range
+        A_path = self.A_paths[
+            index % self.A_size]  # make sure index is within then range
         if self.cfg.serial_batches:  # make sure index is within then range
             index_B = index % self.B_size
         else:  # randomize the index for domain B to avoid fixed pairs.

ppgan/models/builder.py

@@ -2,18 +2,9 @@ import paddle
 
 from ..utils.registry import Registry
 
-
 MODELS = Registry("MODEL")
 
 
 def build_model(cfg):
-    # dataset = MODELS.get(cfg.MODEL.name)(cfg.MODEL)
-    # place = paddle.CUDAPlace(0)
-    # dataloader = paddle.io.DataLoader(dataset,
-    #                                 batch_size=1, #opt.batch_size,
-    #                                 places=place,
-    #                                 shuffle=True, #not opt.serial_batches,
-    #                                 num_workers=0)#int(opt.num_threads))
     model = MODELS.get(cfg.model.name)(cfg)
     return model
-    # pass
\ No newline at end of file

ppgan/utils/animate.py

-import os
-from tqdm import tqdm
+import numpy as np
+from scipy.spatial import ConvexHull
 
 import paddle
 
-import imageio
-from scipy.spatial import ConvexHull
-import numpy as np
-
 
 def normalize_kp(kp_source,
                  kp_driving,