# tensorflow::ops::EncodePng Class Reference

# tensorflow::
ops::
EncodePng

`
#include <image_ops.h>
`


PNG-encode an image.

## Summary


`
image
`
is a 3-D uint8 or uint16
[Tensor](https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/tensor#classtensorflow_1_1_tensor)
of shape
`
[height, width, channels]
`
where
`
channels
`
is:


- 1: for grayscale.
- 2: for grayscale + alpha.
- 3: for RGB.
- 4: for RGBA.

<br />


The ZLIB compression level,
`
compression
`
, can be -1 for the PNG-encoder default or a value from 0 to 9. 9 is the highest compression level, generating the smallest output, but is slower.


Args:

- scope: A [Scope](https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- image: 3-D with shape `
  [height, width, channels]
  ` .

<br />


Optional attributes (see
`
https://www.tensorflow.org/versions/r2.6/api_docs/cc/struct/tensorflow/ops/encode-png/attrs#structtensorflow_1_1ops_1_1_encode_png_1_1_attrs
`
):

- compression: Compression level.

<br />


Returns:

- `
  https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output
  ` : 0-D. PNG-encoded image.

<br />

| ### Constructors and Destructors ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1a1dd56a89fbfdf0a35eb444d4342b2c7a (const :: https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, :: https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input image) ` ||
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1a3f8275d8de85c565db8baef06d518dfa (const :: https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, :: https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input image, const https://www.tensorflow.org/versions/r2.6/api_docs/cc/struct/tensorflow/ops/encode-png/attrs#structtensorflow_1_1ops_1_1_encode_png_1_1_attrs & attrs) ` ||

| ### Public attributes ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1aac6f3548cb8e0539d4e65ddba93ac4b0 ` | ` :: https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output ` |
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1a3dd11638d8d7a6caa5c0151f099abff7 ` | ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation ` |

| ### Public functions ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1a19512289f1f780298ec73b5fd6f54ce4 () const ` | ` ::tensorflow::Node * ` |
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1aece039de4b9b0ff1b8b1462ceae15a1b () const ` | ` ` |
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1ac1a34a63520602afd8ee1c203bc2ba30 () const ` | ` ` |

| ### Public static functions ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png_1ab763cfa8c279c172c2ee539abdad9338 (int64 x) ` | ` https://www.tensorflow.org/versions/r2.6/api_docs/cc/struct/tensorflow/ops/encode-png/attrs#structtensorflow_1_1ops_1_1_encode_png_1_1_attrs ` |

| ### Structs ||
|---|---|
| [tensorflow:: ops:: EncodePng:: Attrs](https://www.tensorflow.org/versions/r2.6/api_docs/cc/struct/tensorflow/ops/encode-png/attrs) | Optional attribute setters for [EncodePng](https://www.tensorflow.org/versions/r2.6/api_docs/cc/class/tensorflow/ops/encode-png#classtensorflow_1_1ops_1_1_encode_png) . |

## Public attributes

### contents

```
::tensorflow::Output contents
```

### operation

```
Operation operation
```

## Public functions

### EncodePng

```
 EncodePng(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input image
)
```

### EncodePng

```
 EncodePng(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input image,
  const EncodePng::Attrs & attrs
)
```

### node

```
::tensorflow::Node * node() const 
```

### operator::tensorflow::Input

```
 operator::tensorflow::Input() const 
```

### operator::tensorflow::Output

```
 operator::tensorflow::Output() const 
```

## Public static functions

### Compression

```
Attrs Compression(
  int64 x
)
```