org.tensorflow.op.core

Class DecodePng<T extends Number>

java.lang.Object

org.tensorflow.op.PrimitiveOp

org.tensorflow.op.core.DecodePng<T>

Type Parameters:

T - data type for image() output

All Implemented Interfaces:

Op, Operand<T>

@Operator
public final class DecodePng<T extends Number>
extends PrimitiveOp
implements Operand<T>

Decode a PNG-encoded image to a uint8 or uint16 tensor.

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.image.decode_image`.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DecodePng.Options Optional attributes for DecodePng

Field Summary

Fields inherited from class org.tensorflow.op.PrimitiveOp

operation

Method Summary

Modifier and Type	Method and Description
Output<T>	asOutput() Returns the symbolic handle of a tensor.
static DecodePng.Options	channels(Long channels)
static <T extends Number> DecodePng<T>	create(Scope scope, Operand<String> contents, Class<T> dtype, DecodePng.Options... options) Factory method to create a class to wrap a new DecodePng operation to the graph.
static DecodePng<UInt8>	create(Scope scope, Operand<String> contents, DecodePng.Options... options) Factory method to create a class to wrap a new DecodePng operation to the graph, using default output types.
Output<T>	image() 3-D with shape `[height, width, channels]`.

Methods inherited from class org.tensorflow.op.PrimitiveOp

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static <T extends Number> DecodePng<T> create(Scope scope,
                                                     Operand<String> contents,
                                                     Class<T> dtype,
                                                     DecodePng.Options... options)

Factory method to create a class to wrap a new DecodePng operation to the graph.

Parameters:

scope - current graph scope

contents - 0-D. The PNG-encoded image.

dtype -

options - carries optional attributes values

Returns:

a new instance of DecodePng

create

public static DecodePng<UInt8> create(Scope scope,
                                      Operand<String> contents,
                                      DecodePng.Options... options)

Factory method to create a class to wrap a new DecodePng operation to the graph, using default output types.

Parameters:

scope - current graph scope

contents - 0-D. The PNG-encoded image.

options - carries optional attributes values

Returns:

a new instance of DecodePng

channels

public static DecodePng.Options channels(Long channels)

Parameters:

channels - Number of color channels for the decoded image.

image

public Output<T> image()

3-D with shape `[height, width, channels]`.

asOutput

public Output<T> asOutput()

Description copied from interface: Operand

Returns the symbolic handle of a tensor.

Inputs to TensorFlow operations are outputs of another TensorFlow operation. This method is used to obtain a symbolic handle that represents the computation of the input.

Specified by:

asOutput in interface Operand<T extends Number>

See Also:

OperationBuilder.addInput(Output)