tf.image.random_contrast
tf.image.random_contrast
tf.image.random_contrast
random_contrast( image, lower, upper, seed=None )
Defined in tensorflow/python/ops/image_ops_impl.py
.
See the guide: Images > Image Adjustments
Adjust the contrast of an image by a random factor.
Equivalent to adjust_contrast()
but uses a contrast_factor
randomly picked in the interval [lower, upper]
.
Args:
-
image
: An image tensor with 3 or more dimensions. -
lower
: float. Lower bound for the random contrast factor. -
upper
: float. Upper bound for the random contrast factor. -
seed
: A Python integer. Used to create a random seed. Seetf.set_random_seed
for behavior.
Returns:
The contrast-adjusted tensor.
Raises:
-
ValueError
: ifupper <= lower
or iflower < 0
.
© 2017 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/python/tf/image/random_contrast