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Transform

LPOT supports builtin preprocessing methods on diffrent framework backend. Pleaes refer to 'examples/helloworld/tf_example1' about how to config a transform in dataloader.

Transform support list

Tensorflow

Type Parameters Inputs Outputs
Resize size (list) image, label image, label
CenterCrop central_fraction (float) image, label image, label
RandomResizedCrop size (list) image, label image, label
Normalize mean (list)
std (list)
image, label image, label
RandomCrop size (list) image, label image, label
Compose None image, label image, label
CropAndResize boxes (list)
box_indices (list)
crop_size (list)
image, label image, label
RandomHorizontalFlip None image, label image, label
RandomVerticalFlip None image, label image, label
DecodeImage None contents(str), label image, label
EncodeJped None image, label Tensor(str), label
Transpose perm (list) image, label image, label
CropToBoundingBox offset_height (int)
offset_width (int)
target_height (int)
target_width (int)
image, label image, label
ConvertImageDtype dtype (Dtype) image, label image, label

Pytorch

Type Parameters Inputs Outputs
Resize size (list or int) image, label image, label
CenterCrop size (list or int) image, label image, label
RandomResizedCrop size (list or int) image, label image, label
Normalize mean (list)
std (list)
image, label image, label
RandomCrop size (list or int) image, label image, label
Compose None transform_list None
RandomHorizontalFlip None image, label image, label
RandomVerticalFlip None image, label image, label
ToTensor None image, label image, label
ToPILImage None image, label image, label
Pad padding (int or tuple or list) image, label image, label
ColorJitter brightness (float or tuple)
contrast (float or tuple)
saturation (float or tuple)
hue (float or tuple)
image, label image, label

Mxnet

Type Parameters Inputs Outputs
Resize size (tuple or int) image, label image, label
CenterCrop size (tuple or int) image, label image, label
RandomResizedCrop size (tuple or int) image, label image, label
Normalize mean (tuple or float)
std (tuple or float)
image, label image, label
RandomCrop size (tuple or int) image, label image, label
Compose None transform_list None
CropResize x (int)
y (int)
w (int)
h (int)
image, label image, label
RandomHorizontalFlip None image, label image, label
RandomVerticalFlip None image, label image, label
ToTensor None image, label image, label
Cast dtype (str) image, label image, label

Onnxrt

Type Parameters Inputs Outputs
Resize size (list) image, label image, label
CenterCrop size (list) image, label image, label
RandomResizedCrop size (list) image, label image, label
Normalize mean (list)
std (list)
image, label image, label
RandomCrop size (list) image, label image, label
Compose None transform_list None
ImageTypeParse None image, label image, label