tf.compat.v1.nn.max_pool_with_argmax | TensorFlow v2.16.1 (original) (raw)

Performs max pooling on the input and outputs both max values and indices.

tf.compat.v1.nn.max_pool_with_argmax(
    input,
    ksize,
    strides,
    padding,
    data_format='NHWC',
    Targmax=None,
    name=None,
    output_dtype=None,
    include_batch_in_index=False
)

The indices in argmax are flattened, so that a maximum value at position[b, y, x, c] becomes flattened index:(y * width + x) * channels + c if include_batch_in_index is False;((b * height + y) * width + x) * channels + c if include_batch_in_index is True.

The indices returned are always in [0, height) x [0, width) before flattening, even if padding is involved and the mathematically correct answer is outside (either negative or too large). This is a bug, but fixing it is difficult to do in a safe backwards compatible way, especially due to flattening.

Args
input	A Tensor. Must be one of the following types: float32, float64, int32, uint8, int16, int8, int64, bfloat16, uint16, half, uint32, uint64. 4-D with shape [batch, height, width, channels]. Input to pool over.
ksize	A list of ints that has length >= 4. The size of the window for each dimension of the input tensor.
strides	A list of ints that has length >= 4. The stride of the sliding window for each dimension of the input tensor.
padding	A string from: "SAME", "VALID". The type of padding algorithm to use.
Targmax	An optional tf.DType from: tf.int32, tf.int64. Defaults to tf.int64.
include_batch_in_index	An optional bool. Defaults to False. Whether to include batch dimension in flattened index of argmax.
name	A name for the operation (optional).

Returns
A tuple of Tensor objects (output, argmax).
output	A Tensor. Has the same type as input.
argmax	A Tensor of type Targmax.