| 메소드 | 설명 | |
|---|---|---|
| ForwCompTransf ( BlkImgDataSrc imgSrc, CSJ2K.j2k.encoder.EncoderSpecs encSpec ) : System |
Constructs a new ForwCompTransf object that operates on the specified source of image data.
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| ToString ( ) : System.String |
Returns a string with a descriptive text of which forward component transformation is used. This can be either "Forward RCT" or "Forward ICT" or "No component transformation" depending on the current tile.
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| calcMixedBitDepths ( int ntdepth, int ttype, int tdepth ) : int[] |
Calculates the bitdepths of the transformed components, given the bitdepth of the un-transformed components and the component transformation type.
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| close ( ) : void |
Closes the underlying file or network connection from where the image data is being read.
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| getCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk |
Apply forward component transformation associated with the current tile. If no component transformation has been requested by the user, data are not modified. This method calls the getInternCompData() method, but respects the definitions of the getCompData() method defined in the BlkImgDataSrc interface.
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| getFixedPoint ( int c ) : int |
Returns the position of the fixed point in the specified component. This is the position of the least significant integral (i.e. non-fractional) bit, which is equivalent to the number of fractional bits. For instance, for fixed-point values with 2 fractional bits, 2 is returned. For floating-point data this value does not apply and 0 should be returned. Position 0 is the position of the least significant bit in the data. This default implementation assumes that the number of fractional bits is not modified by the component mixer.
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| getInternCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk |
Apply the component transformation associated with the current tile. If no component transformation has been requested by the user, data are not modified. Else, appropriate method is called (forwRCT or forwICT).
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| getNomRangeBits ( int c ) : int |
Returns the number of bits, referred to as the "range bits", corresponding to the nominal range of the data in the specified component and in the current tile. If this number is b then for unsigned data the nominal range is between 0 and 2^b-1, and for signed data it is between -2^(b-1) and 2^(b-1)-1. Note that this value can be affected by the multiple component transform.
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| isOrigSigned ( int c ) : bool |
Returns true if the data read was originally signed in the specified component, false if not.
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| nextTile ( ) : void |
Goes to the next tile, in standard scan-line order (by rows then by columns). An NoNextElementException is thrown if the current tile is the last one (i.e. there is no next tile). This default implementation just advances to the next tile in the source and re-initializes properly component transformation variables.
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| setTile ( int x, int y ) : void |
Changes the current tile, given the new indexes. An IllegalArgumentException is thrown if the indexes do not correspond to a valid tile. This default implementation changes the tile in the source and re-initializes properly component transformation variables..
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| 메소드 | 설명 | |
|---|---|---|
| forwICT ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk |
Apply forward irreversible component transformation to obtain requested component from specified block of data. Whatever the type of requested DataBlk, it always returns a DataBlkFloat.
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| forwRCT ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk |
Apply forward component transformation to obtain requested component from specified block of data. Whatever the type of requested DataBlk, it always returns a DataBlkInt.
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| initForwICT ( ) : void |
Initialize some variables used with ICT. It must be called, at least, at the beginning of a new tile.
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| initForwRCT ( ) : void |
Initialize some variables used with RCT. It must be called, at least, at the beginning of each new tile.
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| public ForwCompTransf ( BlkImgDataSrc imgSrc, CSJ2K.j2k.encoder.EncoderSpecs encSpec ) : System | ||
| imgSrc | BlkImgDataSrc | The source from where to get the data to be transformed /// /// |
| encSpec | CSJ2K.j2k.encoder.EncoderSpecs | The encoder specifications /// /// |
| 리턴 | System | |
| public static calcMixedBitDepths ( int ntdepth, int ttype, int tdepth ) : int[] | ||
| ntdepth | int | The bitdepth of each non-transformed components. /// /// |
| ttype | int | The type ID of the component transformation. /// /// |
| tdepth | int | If not null the results are stored in this array, /// otherwise a new array is allocated and returned. /// /// |
| 리턴 | int[] | |
| public getCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk | ||
| blk | CSJ2K.j2k.image.DataBlk | Determines the rectangular area to return, and the data is /// returned in this object. /// /// |
| c | int | Index of the output component. /// /// |
| 리턴 | CSJ2K.j2k.image.DataBlk | |
| public getFixedPoint ( int c ) : int | ||
| c | int | The index of the component. /// /// |
| 리턴 | int | |
| public getInternCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk | ||
| blk | CSJ2K.j2k.image.DataBlk | Determines the rectangular area to return. /// /// |
| c | int | Index of the output component. /// /// |
| 리턴 | CSJ2K.j2k.image.DataBlk | |
| public getNomRangeBits ( int c ) : int | ||
| c | int | The index of the component. /// /// |
| 리턴 | int | |
| public isOrigSigned ( int c ) : bool | ||
| c | int | The index of the component, from 0 to C-1. /// /// |
| 리턴 | bool | |
| public setTile ( int x, int y ) : void | ||
| x | int | The horizontal index of the tile. /// /// |
| y | int | The vertical index of the new tile. /// /// |
| 리턴 | void | |