TJTransform

java.lang.Object
- java.awt.geom.RectangularShape
- - java.awt.geom.Rectangle2D
  - - java.awt.Rectangle
    - - org.libjpegturbo.turbojpeg.TJTransform

All Implemented Interfaces:

java.awt.Shape, java.io.Serializable, java.lang.Cloneable
```
public class TJTransform
extends java.awt.Rectangle
```
Lossless transform parameters

See Also:
Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.awt.geom.Rectangle2D
  java.awt.geom.Rectangle2D.Double, java.awt.geom.Rectangle2D.Float

Field Summary

Fields
Modifier and Type	Field and Description
`TJCustomFilter`	`cf` Custom filter instance
`static int`	`NUMOP` The number of lossless transform operations
`int`	`op` Transform operation (one of `OP_*`)
`static int`	`OP_HFLIP` Flip (mirror) image horizontally.
`static int`	`OP_NONE` Do not transform the position of the image pixels.
`static int`	`OP_ROT180` Rotate image 180 degrees.
`static int`	`OP_ROT270` Rotate image counter-clockwise by 90 degrees.
`static int`	`OP_ROT90` Rotate image clockwise by 90 degrees.
`static int`	`OP_TRANSPOSE` Transpose image (flip/mirror along upper left to lower right axis).
`static int`	`OP_TRANSVERSE` Transverse transpose image (flip/mirror along upper right to lower left axis).
`static int`	`OP_VFLIP` Flip (mirror) image vertically.
`static int`	`OPT_CROP` This option will enable lossless cropping.
`static int`	`OPT_GRAY` This option will discard the color data in the input image and produce a grayscale output image.
`static int`	`OPT_NOOUTPUT` This option will prevent `TJTransformer.transform()` from outputting a JPEG image for this particular transform.
`static int`	`OPT_PERFECT` This option will cause `TJTransformer.transform()` to throw an exception if the transform is not perfect.
`static int`	`OPT_TRIM` This option will discard any partial MCU blocks that cannot be transformed.
`int`	`options` Transform options (bitwise OR of one or more of `OPT_*`)

Fields inherited from class java.awt.Rectangle
height, width, x, y

Fields inherited from class java.awt.geom.Rectangle2D
OUT_BOTTOM, OUT_LEFT, OUT_RIGHT, OUT_TOP

Constructor Summary

Constructors
Constructor and Description
`TJTransform()` Create a new lossless transform instance.
`TJTransform(int x, int y, int w, int h, int op, int options, TJCustomFilter cf)` Create a new lossless transform instance with the given parameters.
`TJTransform(java.awt.Rectangle r, int op, int options, TJCustomFilter cf)` Create a new lossless transform instance with the given parameters.

Method Summary
- Methods inherited from class java.awt.Rectangle
  add, add, add, contains, contains, contains, contains, createIntersection, createUnion, equals, getBounds, getBounds2D, getHeight, getLocation, getSize, getWidth, getX, getY, grow, inside, intersection, intersects, isEmpty, move, outcode, reshape, resize, setBounds, setBounds, setLocation, setLocation, setRect, setSize, setSize, toString, translate, union
- Methods inherited from class java.awt.geom.Rectangle2D
  add, add, add, contains, contains, getPathIterator, getPathIterator, hashCode, intersect, intersects, intersectsLine, intersectsLine, outcode, setFrame, setRect, union
- Methods inherited from class java.awt.geom.RectangularShape
  clone, contains, contains, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal
- Methods inherited from class java.lang.Object
  finalize, getClass, notify, notifyAll, wait, wait, wait
- Methods inherited from interface java.awt.Shape
  contains, contains, contains, contains, getPathIterator, getPathIterator, intersects, intersects

- Field Detail
  - NUMOP
```
public static final int NUMOP
```
    The number of lossless transform operations
    
    See Also:
    Constant Field Values
  - OP_NONE
```
public static final int OP_NONE
```
    Do not transform the position of the image pixels.
    
    See Also:
    Constant Field Values
  - OP_HFLIP
```
public static final int OP_HFLIP
```
    Flip (mirror) image horizontally. This transform is imperfect if there are any partial MCU blocks on the right edge.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OP_VFLIP
```
public static final int OP_VFLIP
```
    Flip (mirror) image vertically. This transform is imperfect if there are any partial MCU blocks on the bottom edge.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OP_TRANSPOSE
```
public static final int OP_TRANSPOSE
```
    Transpose image (flip/mirror along upper left to lower right axis). This transform is always perfect.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OP_TRANSVERSE
```
public static final int OP_TRANSVERSE
```
    Transverse transpose image (flip/mirror along upper right to lower left axis). This transform is imperfect if there are any partial MCU blocks in the image.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OP_ROT90
```
public static final int OP_ROT90
```
    Rotate image clockwise by 90 degrees. This transform is imperfect if there are any partial MCU blocks on the bottom edge.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OP_ROT180
```
public static final int OP_ROT180
```
    Rotate image 180 degrees. This transform is imperfect if there are any partial MCU blocks in the image.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OP_ROT270
```
public static final int OP_ROT270
```
    Rotate image counter-clockwise by 90 degrees. This transform is imperfect if there are any partial MCU blocks on the right edge.
    
    See Also:
    OPT_PERFECT, Constant Field Values
  - OPT_PERFECT
```
public static final int OPT_PERFECT
```
    This option will cause TJTransformer.transform() to throw an exception if the transform is not perfect. Lossless transforms operate on MCU blocks, whose size depends on the level of chrominance subsampling used. If the image's width or height is not evenly divisible by the MCU block size (see TJ.getMCUWidth(int) and TJ.getMCUHeight(int)), then there will be partial MCU blocks on the right and/or bottom edges. It is not possible to move these partial MCU blocks to the top or left of the image, so any transform that would require that is "imperfect." If this option is not specified, then any partial MCU blocks that cannot be transformed will be left in place, which will create odd-looking strips on the right or bottom edge of the image.
    
    See Also:
    Constant Field Values
  - OPT_TRIM
```
public static final int OPT_TRIM
```
    This option will discard any partial MCU blocks that cannot be transformed.
    
    See Also:
    Constant Field Values
  - OPT_CROP
```
public static final int OPT_CROP
```
    This option will enable lossless cropping.
    
    See Also:
    Constant Field Values
  - OPT_GRAY
```
public static final int OPT_GRAY
```
    This option will discard the color data in the input image and produce a grayscale output image.
    
    See Also:
    Constant Field Values
  - OPT_NOOUTPUT
```
public static final int OPT_NOOUTPUT
```
    This option will prevent TJTransformer.transform() from outputting a JPEG image for this particular transform. This can be used in conjunction with a custom filter to capture the transformed DCT coefficients without transcoding them.
    
    See Also:
    Constant Field Values
  - op
```
public int op
```
    Transform operation (one of OP_*)
  - options
```
public int options
```
    Transform options (bitwise OR of one or more of OPT_*)
  - cf
```
public TJCustomFilter cf
```
    Custom filter instance
- Constructor Detail
  - TJTransform
```
public TJTransform()
```
    Create a new lossless transform instance.
  - TJTransform
```
public TJTransform(int x,
           int y,
           int w,
           int h,
           int op,
           int options,
           TJCustomFilter cf)
```
    Create a new lossless transform instance with the given parameters.
    
    Parameters:
    x - the left boundary of the cropping region. This must be evenly divisible by the MCU block width (see TJ.getMCUWidth(int))
    y - the upper boundary of the cropping region. This must be evenly divisible by the MCU block height (see TJ.getMCUHeight(int))
    w - the width of the cropping region. Setting this to 0 is the equivalent of setting it to (width of the source JPEG image - x).
    h - the height of the cropping region. Setting this to 0 is the equivalent of setting it to (height of the source JPEG image - y).
    op - one of the transform operations (OP_*)
    options - the bitwise OR of one or more of the transform options (OPT_*)
    cf - an instance of an object that implements the TJCustomFilter interface, or null if no custom filter is needed
  - TJTransform
```
public TJTransform(java.awt.Rectangle r,
           int op,
           int options,
           TJCustomFilter cf)
```
    Create a new lossless transform instance with the given parameters.
    
    Parameters:
    r - a Rectangle instance that specifies the cropping region. See TJTransform(int, int, int, int, int, int, TJCustomFilter) for more detail.
    op - one of the transform operations (OP_*)
    options - the bitwise OR of one or more of the transform options (OPT_*)
    cf - an instance of an object that implements the TJCustomFilter interface, or null if no custom filter is needed

Class TJTransform

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.geom.Rectangle2D

Field Summary

Fields inherited from class java.awt.Rectangle

Fields inherited from class java.awt.geom.Rectangle2D

Constructor Summary

Method Summary

Methods inherited from class java.awt.Rectangle

Methods inherited from class java.awt.geom.Rectangle2D

Methods inherited from class java.awt.geom.RectangularShape

Methods inherited from class java.lang.Object

Methods inherited from interface java.awt.Shape

Field Detail

NUMOP

OP_NONE

OP_HFLIP

OP_VFLIP

OP_TRANSPOSE

OP_TRANSVERSE

OP_ROT90

OP_ROT180

OP_ROT270

OPT_PERFECT

OPT_TRIM

OPT_CROP

OPT_GRAY

OPT_NOOUTPUT

op

options

cf

Constructor Detail

TJTransform

TJTransform

TJTransform