description: Adjust jpeg encoding quality of an image.

tf.image.adjust_jpeg_quality

Adjust jpeg encoding quality of an image.

tf.image.adjust_jpeg_quality(
    image, jpeg_quality, name=None
)

This is a convenience method that converts an image to uint8 representation, encodes it to jpeg with jpeg_quality, decodes it, and then converts back to the original data type.

jpeg_quality must be in the interval [0, 100].

Usage Example:

>>> x = [[[1.0, 2.0, 3.0],
...       [4.0, 5.0, 6.0]],
...     [[7.0, 8.0, 9.0],
...       [10.0, 11.0, 12.0]]]
>>> tf.image.adjust_jpeg_quality(x, 75)
<tf.Tensor: shape=(2, 2, 3), dtype=float32, numpy=
array([[[1., 1., 1.],
        [1., 1., 1.]],
       [[1., 1., 1.],
        [1., 1., 1.]]], dtype=float32)>

Args

image 3D image. The size of the last dimension must be None, 1 or 3.
jpeg_quality Python int or Tensor of type int32. jpeg encoding quality.
name A name for this operation (optional).

Returns

Adjusted image, same shape and DType as image.

Raises

InvalidArgumentError quality must be in [0,100]
InvalidArgumentError image must have 1 or 3 channels