Méthode | Description | |
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ImgDataJoiner ( IList |
Class constructor. Each input BlkImgDataSrc and its component index must appear in the order wanted for the output components. Of course, the 2 arrays must have the same length (This length is the number of output components). The image width and height are definded to be the maximum values of all the input ImgData.
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ToString ( ) : System.String |
Returns a string of information about the object, more than 1 line long. The information string includes information from the several input ImgData (their toString() method are called one after the other).
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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 |
Returns, in the blk argument, a block of image data containing the specifed rectangular area, in the specified component. The data is returned, as a copy of the internal data, therefore the returned data can be modified "in place". The rectangular area to return is specified by the 'ulx', 'uly', 'w' and 'h' members of the 'blk' argument, relative to the current tile. These members are not modified by this method. The 'offset' of the returned data is 0, and the 'scanw' is the same as the block's width. See the 'DataBlk' class. This method, in general, is less efficient than the 'getInternCompData()' method since, in general, it copies the data. However if the array of returned data is to be modified by the caller then this method is preferable. If the data array in 'blk' is 'null', then a new one is created. If the data array is not 'null' then it is reused, and it must be large enough to contain the block's data. Otherwise an 'ArrayStoreException' or an 'IndexOutOfBoundsException' is thrown by the Java system. The returned data may have its 'progressive' attribute set. In this case the returned data is only an approximation of the "final" data.
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getCompImgHeight ( int n ) : int |
Returns the height in pixels of the specified component in the overall image.
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getCompImgWidth ( int c ) : int |
Returns the width in pixels of the specified component in the overall image.
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getCompSubsX ( int c ) : int |
Returns the component subsampling factor in the horizontal direction, for the specified component. This is, approximately, the ratio of dimensions between the reference grid and the component itself, see the 'ImgData' interface desription for details.
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getCompSubsY ( int c ) : int |
Returns the component subsampling factor in the vertical direction, for the specified component. This is, approximately, the ratio of dimensions between the reference grid and the component itself, see the 'ImgData' interface desription for details.
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getCompULX ( int c ) : int |
Returns the horizontal coordinate of the upper-left corner of the specified component in the current tile.
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getCompULY ( int c ) : int |
Returns the vertical coordinate of the upper-left corner of the specified component in the current tile.
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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.
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getInternCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk |
Returns, in the blk argument, a block of image data containing the specifed rectangular area, in the specified component. The data is returned, as a reference to the internal data, if any, instead of as a copy, therefore the returned data should not be modified. The rectangular area to return is specified by the 'ulx', 'uly', 'w' and 'h' members of the 'blk' argument, relative to the current tile. These members are not modified by this method. The 'offset' and 'scanw' of the returned data can be arbitrary. See the 'DataBlk' class. This method, in general, is more efficient than the 'getCompData()' method since it may not copy the data. However if the array of returned data is to be modified by the caller then the other method is probably preferable. If the data array in blk is null, then a new one is created if necessary. The implementation of this interface may choose to return the same array or a new one, depending on what is more efficient. Therefore, the data array in blk prior to the method call should not be considered to contain the returned data, a new array may have been created. Instead, get the array from blk after the method has returned. The returned data may have its 'progressive' attribute set. In this case the returned data is only an approximation of the "final" data.
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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. 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. For floating point data this value is not applicable.
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getNumTiles ( CSJ2K.j2k.image.Coord co ) : CSJ2K.j2k.image.Coord |
Returns the number of tiles in the horizontal and vertical directions. This default implementation assumes no tiling, so (1,1) is always returned.
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getNumTiles ( ) : int |
Returns the total number of tiles in the image. This default implementation assumes no tiling, so 1 is always returned.
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getTile ( CSJ2K.j2k.image.Coord co ) : CSJ2K.j2k.image.Coord |
Returns the coordinates of the current tile. This default implementation assumes no-tiling, so (0,0) is returned.
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getTileCompHeight ( int t, int c ) : int |
Returns the height in pixels of the specified tile-component.
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getTileCompWidth ( int t, int c ) : int |
Returns the width in pixels of the specified tile-component
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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 |
Advances to the next tile, in standard scan-line order (by rows then columns). A NoNextElementException is thrown if the current tile is the last one (i.e. there is no next tile). This default implementation assumes no tiling, so NoNextElementException() is always thrown.
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setTile ( int x, int y ) : void |
Changes the current tile, given the new coordinates. An IllegalArgumentException is thrown if the coordinates do not correspond to a valid tile.
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public ImgDataJoiner ( IList |
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imD | IList |
The list of input BlkImgDataSrc in an array. /// /// |
cIdx | IList |
The component index associated with each ImgData. /// /// |
Résultat | System.Collections.Generic |
public getCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk | ||
blk | CSJ2K.j2k.image.DataBlk | Its coordinates and dimensions specify the area to return, /// relative to the current tile. If it contains a non-null data array, /// then it must be large enough. If it contains a null data array a new /// one is created. Some fields in this object are modified to return the /// data. /// /// |
c | int | The index of the component from which to get the data. /// /// |
Résultat | CSJ2K.j2k.image.DataBlk |
public getCompImgHeight ( int n ) : int | ||
n | int | The index of the component, from 0 to N-1. /// /// |
Résultat | int |
public getCompImgWidth ( int c ) : int | ||
c | int | The index of the component, from 0 to N-1. /// /// |
Résultat | int |
public getCompSubsX ( int c ) : int | ||
c | int | The index of the component (between 0 and N-1) /// /// |
Résultat | int |
public getCompSubsY ( int c ) : int | ||
c | int | The index of the component (between 0 and N-1) /// /// |
Résultat | int |
public getCompULX ( int c ) : int | ||
c | int | The component index. /// /// |
Résultat | int |
public getCompULY ( int c ) : int | ||
c | int | The component index. /// /// |
Résultat | int |
public getFixedPoint ( int c ) : int | ||
c | int | The index of the component. /// /// |
Résultat | int |
public getInternCompData ( CSJ2K.j2k.image.DataBlk blk, int c ) : CSJ2K.j2k.image.DataBlk | ||
blk | CSJ2K.j2k.image.DataBlk | Its coordinates and dimensions specify the area to return, /// relative to the current tile. Some fields in this object are modified /// to return the data. /// /// |
c | int | The index of the component from which to get the data. /// /// |
Résultat | CSJ2K.j2k.image.DataBlk |
public getNomRangeBits ( int c ) : int | ||
c | int | The index of the component. /// /// |
Résultat | int |
public getNumTiles ( CSJ2K.j2k.image.Coord co ) : CSJ2K.j2k.image.Coord | ||
co | CSJ2K.j2k.image.Coord | If not null this object is used to return the information. If /// null a new one is created and returned. /// /// |
Résultat | CSJ2K.j2k.image.Coord |
public getTile ( CSJ2K.j2k.image.Coord co ) : CSJ2K.j2k.image.Coord | ||
co | CSJ2K.j2k.image.Coord | If not null this object is used to return the information. If /// null a new one is created and returned. /// /// |
Résultat | CSJ2K.j2k.image.Coord |
public getTileCompHeight ( int t, int c ) : int | ||
t | int | The tile index. /// /// |
c | int | The index of the component, from 0 to N-1. /// /// |
Résultat | int |
public getTileCompWidth ( int t, int c ) : int | ||
t | int | Tile index /// /// |
c | int | The index of the component, from 0 to N-1. /// /// |
Résultat | int |
public isOrigSigned ( int c ) : bool | ||
c | int | The index of the component, from 0 to C-1. /// /// |
Résultat | bool |
public setTile ( int x, int y ) : void | ||
x | int | The horizontal coordinate of the tile. /// /// |
y | int | The vertical coordinate of the new tile. /// /// |
Résultat | void |