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tensorflow::ops::CropAndResizeGradBoxes

#include <image_ops.h>

Computes the gradient of the crop_and_resize op wrt the input boxes tensor.

Summary

Arguments:

  • scope: A Scope object
  • grads: A 4-D tensor of shape [num_boxes, crop_height, crop_width, depth].
  • image: A 4-D tensor of shape [batch, image_height, image_width, depth]. Both image_height and image_width need to be positive.
  • boxes: A 2-D tensor of shape [num_boxes, 4]. The i-th row of the tensor specifies the coordinates of a box in the box_ind[i] image and is specified in normalized coordinates [y1, x1, y2, x2]. A normalized coordinate value of y is mapped to the image coordinate at y * (image_height - 1), so as the [0, 1] interval of normalized image height is mapped to `[0, image_height - 1] in image height coordinates. We do allow y1 > y2, in which case the sampled crop is an up-down flipped version of the original image. The width dimension is treated similarly. Normalized coordinates outside the [0, 1] range are allowed, in which case we use extrapolation_value to extrapolate the input image values.
  • box_ind: A 1-D tensor of shape [num_boxes] with int32 values in [0, batch). The value of box_ind[i] specifies the image that the i-th box refers to.

Optional attributes (see Attrs):

  • method: A string specifying the interpolation method. Only 'bilinear' is supported for now.

Returns:

  • Output: A 2-D tensor of shape [num_boxes, 4].
Constructors and Destructors
CropAndResizeGradBoxes(const ::tensorflow::Scope & scope, ::tensorflow::Input grads, ::tensorflow::Input image, ::tensorflow::Input boxes, ::tensorflow::Input box_ind)
CropAndResizeGradBoxes(const ::tensorflow::Scope & scope, ::tensorflow::Input grads, ::tensorflow::Input image, ::tensorflow::Input boxes, ::tensorflow::Input box_ind, const CropAndResizeGradBoxes::Attrs & attrs)
Public attributes
output
Public functions
node() const
::tensorflow::Node *
operator::tensorflow::Input() const
operator::tensorflow::Output() const
Public static functions
Method(StringPiece x)
Structs
tensorflow::ops::CropAndResizeGradBoxes::Attrs

Optional attribute setters for CropAndResizeGradBoxes.

Public attributes

output

::tensorflow::Output output

Public functions

CropAndResizeGradBoxes

 CropAndResizeGradBoxes(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input grads,
  ::tensorflow::Input image,
  ::tensorflow::Input boxes,
  ::tensorflow::Input box_ind
)

CropAndResizeGradBoxes

 CropAndResizeGradBoxes(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input grads,
  ::tensorflow::Input image,
  ::tensorflow::Input boxes,
  ::tensorflow::Input box_ind,
  const CropAndResizeGradBoxes::Attrs & attrs
)

node

::tensorflow::Node * node() const 

operator::tensorflow::Input

operator::tensorflow::Input() const 

operator::tensorflow::Output

operator::tensorflow::Output() const 

Public static functions

Method

Attrs Method(
  StringPiece x
)

© 2018 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_docs/cc/class/tensorflow/ops/crop-and-resize-grad-boxes.html