tf.io.decode_png
Decode a PNG-encoded image to a uint8 or uint16 tensor.
tf.io.decode_png(
contents, channels=0, dtype=tf.dtypes.uint8, name=None
)
The attr channels indicates the desired number of color channels for the decoded image.
Accepted values are:
- 0: Use the number of channels in the PNG-encoded image.
- 1: output a grayscale image.
- 3: output an RGB image.
- 4: output an RGBA image.
If needed, the PNG-encoded image is transformed to match the requested number of color channels.
This op also supports decoding JPEGs and non-animated GIFs since the interface is the same, though it is cleaner to use tf.io.decode_image.
| Args | |
|---|---|
contents |
A Tensor of type string. 0-D. The PNG-encoded image. |
channels |
An optional int. Defaults to 0. Number of color channels for the decoded image. |
dtype |
An optional tf.DType from: tf.uint8, tf.uint16. Defaults to tf.uint8. |
name |
A name for the operation (optional). |
| Returns | |
|---|---|
A Tensor of type dtype. |
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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.3/api_docs/python/tf/io/decode_png