tf.image.random_flip_up_down
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Randomly flips an image vertically (upside down).
tf.image.random_flip_up_down(
image, seed=None
)
With a 1 in 2 chance, outputs the contents of image flipped along the first
dimension, which is height. Otherwise, output the image as-is.
When passing a batch of images, each image will be randomly flipped
independent of other images.
Example usage:
image = np.array([[[1], [2]], [[3], [4]]])
tf.image.random_flip_up_down(image, 3).numpy().tolist()
[[[3], [4]], [[1], [2]]]
Randomly flip multiple images.
images = np.array(
[
[[[1], [2]], [[3], [4]]],
[[[5], [6]], [[7], [8]]]
])
tf.image.random_flip_up_down(images, 4).numpy().tolist()
[[[[3], [4]], [[1], [2]]], [[[5], [6]], [[7], [8]]]]
For producing deterministic results given a seed value, use
tf.image.stateless_random_flip_up_down. Unlike using the seed param
with tf.image.random_* ops, tf.image.stateless_random_* ops guarantee the
same results given the same seed independent of how many times the function is
called, and independent of global seed settings (e.g. tf.random.set_seed).
Args |
|---|
image
|
4-D Tensor of shape [batch, height, width, channels] or 3-D Tensor
of shape [height, width, channels].
|
seed
|
A Python integer. Used to create a random seed. See
tf.compat.v1.set_random_seed for behavior.
|
Returns |
|---|
A tensor of the same type and shape as image.
|
Raises |
|---|
ValueError
|
if the shape of image not supported.
|
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Last updated 2023-03-17 UTC.
[null,null,["Last updated 2023-03-17 UTC."],[],[],null,["# tf.image.random_flip_up_down\n\n\u003cbr /\u003e\n\n|---------------------------------------------------------------------------------------------------------------------------------|\n| [View source on GitHub](https://github.com/tensorflow/tensorflow/blob/v2.9.3/tensorflow/python/ops/image_ops_impl.py#L328-L372) |\n\nRandomly flips an image vertically (upside down).\n\n#### View aliases\n\n\n**Compat aliases for migration**\n\nSee\n[Migration guide](https://www.tensorflow.org/guide/migrate) for\nmore details.\n\n[`tf.compat.v1.image.random_flip_up_down`](https://www.tensorflow.org/api_docs/python/tf/image/random_flip_up_down)\n\n\u003cbr /\u003e\n\n tf.image.random_flip_up_down(\n image, seed=None\n )\n\nWith a 1 in 2 chance, outputs the contents of `image` flipped along the first\ndimension, which is `height`. Otherwise, output the image as-is.\nWhen passing a batch of images, each image will be randomly flipped\nindependent of other images.\n\n#### Example usage:\n\n image = np.array([[[1], [2]], [[3], [4]]])\n tf.image.random_flip_up_down(image, 3).numpy().tolist()\n [[[3], [4]], [[1], [2]]]\n\nRandomly flip multiple images. \n\n images = np.array(\n [\n [[[1], [2]], [[3], [4]]],\n [[[5], [6]], [[7], [8]]]\n ])\n tf.image.random_flip_up_down(images, 4).numpy().tolist()\n [[[[3], [4]], [[1], [2]]], [[[5], [6]], [[7], [8]]]]\n\nFor producing deterministic results given a `seed` value, use\n[`tf.image.stateless_random_flip_up_down`](../../tf/image/stateless_random_flip_up_down). Unlike using the `seed` param\nwith `tf.image.random_*` ops, `tf.image.stateless_random_*` ops guarantee the\nsame results given the same seed independent of how many times the function is\ncalled, and independent of global seed settings (e.g. tf.random.set_seed).\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Args ---- ||\n|---------|----------------------------------------------------------------------------------------------------------------------------------------|\n| `image` | 4-D Tensor of shape `[batch, height, width, channels]` or 3-D Tensor of shape `[height, width, channels]`. |\n| `seed` | A Python integer. Used to create a random seed. See [`tf.compat.v1.set_random_seed`](../../tf/compat/v1/set_random_seed) for behavior. |\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Returns ------- ||\n|---|---|\n| A tensor of the same type and shape as `image`. ||\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Raises ------ ||\n|--------------|----------------------------------------|\n| `ValueError` | if the shape of `image` not supported. |\n\n\u003cbr /\u003e"]]
View source on GitHub