tf.image.image_gradients

Returns image gradients (dy, dx) for each color channel.

View aliases

Compat aliases for migration

See Migration guide for more details.

tf.compat.v1.image.image_gradients

tf.image.image_gradients(
    image
)

Both output tensors have the same shape as the input: [batch_size, h, w, d]. The gradient values are organized so that [I(x+1, y) - I(x, y)] is in location (x, y). That means that dy will always have zeros in the last row, and dx will always have zeros in the last column.

Arguments
image	Tensor with shape [batch_size, h, w, d].

Returns
Pair of tensors (dy, dx) holding the vertical and horizontal image gradients (1-step finite difference).

Raises
ValueError	If image is not a 4D tensor.