Resamples input data at user defined coordinates.

img_resampler(data, warp, name = NULL)

Arguments

data

Tensor of shape [batch_size, data_height, data_width, data_num_channels] containing 2D data that will be resampled.

warp

Tensor of minimum rank 2 containing the coordinates at which resampling will be performed. Since only bilinear interpolation is currently supported, the last dimension of the warp tensor must be 2, representing the (x, y) coordinate where x is the index for width and y is the index for height.

name

Optional name of the op.

Value

Tensor of resampled values from `data`. The output tensor shape is determined by the shape of the warp tensor. For example, if `data` is of shape `[batch_size, data_height, data_width, data_num_channels]` and warp of shape `[batch_size, dim_0, ... , dim_n, 2]` the output will be of shape `[batch_size, dim_0, ... , dim_n, data_num_channels]`.

Details

The resampler currently only supports bilinear interpolation of 2D data.

Raises

ImportError: if the wrapper generated during compilation is not present when the function is called.