EncodeJpeg

public final class EncodeJpeg

JPEG-encode an image.

`image` is a 3-D uint8 Tensor of shape `[height, width, channels]`.

The attr `format` can be used to override the color format of the encoded output. Values can be:

• `''`: Use a default format based on the number of channels in the image.
• `grayscale`: Output a grayscale JPEG image. The `channels` dimension of `image` must be 1.
• `rgb`: Output an RGB JPEG image. The `channels` dimension of `image` must be 3.

If `format` is not specified or is the empty string, a default format is picked in function of the number of channels in `image`:

• 1: Output a grayscale image.
• 3: Output an RGB image.

Nested Classes

class

EncodeJpeg.Options

Optional attributes for EncodeJpeg

Constants

String

OP_NAME

The name of this op, as known by TensorFlow core engine

Public Methods

Output<TString>	asOutput() Returns the symbolic handle of the tensor.
static EncodeJpeg.Options	chromaDownsampling(Boolean chromaDownsampling)
Output<TString>	contents() 0-D.
static EncodeJpeg	create(Scope scope, Operand<TUint8> image, Options... options) Factory method to create a class wrapping a new EncodeJpeg operation.
static EncodeJpeg.Options	densityUnit(String densityUnit)
static EncodeJpeg.Options	format(String format)
static EncodeJpeg.Options	optimizeSize(Boolean optimizeSize)
static EncodeJpeg.Options	progressive(Boolean progressive)
static EncodeJpeg.Options	quality(Long quality)
static EncodeJpeg.Options	xDensity(Long xDensity)
static EncodeJpeg.Options	xmpMetadata(String xmpMetadata)
static EncodeJpeg.Options	yDensity(Long yDensity)

Inherited Methods

From class org.tensorflow.op.RawOp

final boolean	equals(Object obj)
final int	hashCode()
Operation	op() Return this unit of computation as a single Operation.
final String	toString()

From class java.lang.Object

boolean	equals(Object arg0)
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface org.tensorflow.op.Op

abstract ExecutionEnvironment	env() Return the execution environment this op was created in.
abstract Operation	op() Return this unit of computation as a single Operation.

From interface org.tensorflow.Operand

abstract Output<TString>	asOutput() Returns the symbolic handle of the tensor.
abstract TString	asTensor() Returns the tensor at this operand.
abstract Shape	shape() Returns the (possibly partially known) shape of the tensor referred to by the Output of this operand.
abstract Class<TString>	type() Returns the tensor type of this operand

From interface org.tensorflow.ndarray.Shaped

abstract int	rank()
abstract Shape	shape()
abstract long	size() Computes and returns the total size of this container, in number of values.

Constants

public static final String OP_NAME

The name of this op, as known by TensorFlow core engine

Constant Value: "EncodeJpeg"

Public Methods

public Output<TString> asOutput ()

Returns the symbolic handle of the 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.

public static EncodeJpeg.Options chromaDownsampling (Boolean chromaDownsampling)

Parameters

chromaDownsampling	See http://en.wikipedia.org/wiki/Chroma_subsampling.

public Output<TString> contents ()

0-D. JPEG-encoded image.

public static EncodeJpeg create (Scope scope, Operand<TUint8> image, Options... options)

Factory method to create a class wrapping a new EncodeJpeg operation.

Parameters

scope	current scope
image	3-D with shape `[height, width, channels]`.
options	carries optional attributes values

Returns

• a new instance of EncodeJpeg

public static EncodeJpeg.Options densityUnit (String densityUnit)

Parameters

densityUnit	Unit used to specify `x_density` and `y_density`: pixels per inch (`'in'`) or centimeter (`'cm'`).

public static EncodeJpeg.Options format (String format)

Parameters

format	Per pixel image format.

public static EncodeJpeg.Options optimizeSize (Boolean optimizeSize)

Parameters

optimizeSize	If True, spend CPU/RAM to reduce size with no quality change.

public static EncodeJpeg.Options progressive (Boolean progressive)

Parameters

progressive	If True, create a JPEG that loads progressively (coarse to fine).

public static EncodeJpeg.Options quality (Long quality)

Parameters

quality	Quality of the compression from 0 to 100 (higher is better and slower).

public static EncodeJpeg.Options xDensity (Long xDensity)

Parameters

xDensity	Horizontal pixels per density unit.

public static EncodeJpeg.Options xmpMetadata (String xmpMetadata)

Parameters

xmpMetadata	If not empty, embed this XMP metadata in the image header.

public static EncodeJpeg.Options yDensity (Long yDensity)

Parameters

yDensity	Vertical pixels per density unit.