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OTB
9.0.0
Orfeo Toolbox
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OTB
9.0.0
Orfeo Toolbox
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#include <otbImageRegionSquareTileSplitter.h>
Inheritance diagram for otb::ImageRegionSquareTileSplitter< VImageDimension >: Collaboration diagram for otb::ImageRegionSquareTileSplitter< VImageDimension >:Public Types | |
| typedef itk::SmartPointer< const Self > | ConstPointer |
| typedef itk::Index< VImageDimension > | IndexType |
| typedef IndexType::IndexValueType | IndexValueType |
| typedef itk::SmartPointer< Self > | Pointer |
| typedef itk::ImageRegion< VImageDimension > | RegionType |
| typedef ImageRegionSquareTileSplitter | Self |
| typedef itk::Size< VImageDimension > | SizeType |
| typedef SizeType::SizeValueType | SizeValueType |
| typedef itk::ImageRegionSplitter< VImageDimension > | Superclass |
Public Member Functions | |
| virtual ::itk::LightObject::Pointer | CreateAnother (void) const |
| virtual const char * | GetNameOfClass () const |
| unsigned int | GetNumberOfSplits (const RegionType ®ion, unsigned int requestedNumber) override |
| RegionType | GetSplit (unsigned int i, unsigned int numberOfPieces, const RegionType ®ion) override |
| virtual unsigned int | GetTileDimension () |
| virtual unsigned int | GetTileSizeAlignment () |
| virtual void | SetTileSizeAlignment (unsigned int _arg) |
Static Public Member Functions | |
| static unsigned int | GetImageDimension () |
| static Pointer | New () |
Static Public Attributes | |
| static const unsigned int | ImageDimension = VImageDimension |
Protected Member Functions | |
| ImageRegionSquareTileSplitter () | |
| ~ImageRegionSquareTileSplitter () override | |
| void | PrintSelf (std::ostream &os, itk::Indent indent) const override |
Private Member Functions | |
| ImageRegionSquareTileSplitter (const ImageRegionSquareTileSplitter &)=delete | |
| void | operator= (const ImageRegionSquareTileSplitter &)=delete |
Private Attributes | |
| itk::FixedArray< unsigned int, VImageDimension > | m_SplitsPerDimension |
| unsigned int | m_TileDimension |
| unsigned int | m_TileSizeAlignment |
Divide a region into several pieces.
This region splitter tries to adapt to the tiling scheme of the input image using the TileHint parameter. It aims at synchronizing the streaming with the tiling scheme (in a JPEG 2000 situation for example) so as to avoid reading the same tile multiple times in the standard pixel-based processing scheme.
If the requested number of splits is lower than the number of tiles in the image region, then the splitter will derive splits that combine several tiles in one split. If the requested number of splits is greater than the number of tiles in the image region, the splitter will derive splits that divide exactly one tile. All splits from one input tiles will be spawned before changing to a new tile, ensuring the former tile will be only read once.
If the TileHint is empty, or is VImageDimension is not 2, the splitter falls back to the behaviour of otb::ImageRegionSquareTileSplitter.
ImageRegionSquareTileSplitter divides an ImageRegion into smaller regions. ImageRegionSquareTileSplitter is used by the StreamingImageFilter to divide a requested output region into a series of smaller requests of the pipeline. This object has two basic methods: GetNumberOfSplits() and GetSplit().
GetNumberOfSplits() is used to determine how may subregions a given region can be divided. You call GetNumberOfSplits with an argument that is the number of subregions you want. If the image region can support that number of subregions, that number is returned. Otherwise, the maximum number of splits a region can support will be returned. For example, if a region splitter class only divides a region into horizontal slabs, then the maximum number of splits will be the number of rows in the region.
GetSplit() returns the ith of N subregions (as an ImageRegion object).
This ImageRegionSquareTileSplitter class divides a region along the outermost dimension. If the outermost dimension has size 1 (i.e. a volume with a single slice), the ImageRegionSquareTileSplitter will divide the region along the next outermost dimension. If that dimension has size 1, the process continues with the next outermost dimension.
Regions obtained by the ImageRegionSquareTileSplitter are aligned on a grid with width of 256. Divisions can occur only at line defined as k*256.
Other ImageRegionSquareTileSplitter subclasses could divide an image into more uniform shaped regions instead of slabs.
Definition at line 75 of file otbImageRegionSquareTileSplitter.h.
| typedef itk::SmartPointer<const Self> otb::ImageRegionSquareTileSplitter< VImageDimension >::ConstPointer |
Definition at line 82 of file otbImageRegionSquareTileSplitter.h.
| typedef itk::Index<VImageDimension> otb::ImageRegionSquareTileSplitter< VImageDimension >::IndexType |
Index typedef support. An index is used to access pixel values.
Definition at line 100 of file otbImageRegionSquareTileSplitter.h.
| typedef IndexType::IndexValueType otb::ImageRegionSquareTileSplitter< VImageDimension >::IndexValueType |
Definition at line 101 of file otbImageRegionSquareTileSplitter.h.
| typedef itk::SmartPointer<Self> otb::ImageRegionSquareTileSplitter< VImageDimension >::Pointer |
Definition at line 81 of file otbImageRegionSquareTileSplitter.h.
| typedef itk::ImageRegion<VImageDimension> otb::ImageRegionSquareTileSplitter< VImageDimension >::RegionType |
Region typedef support.
Definition at line 108 of file otbImageRegionSquareTileSplitter.h.
| typedef ImageRegionSquareTileSplitter otb::ImageRegionSquareTileSplitter< VImageDimension >::Self |
Standard class typedefs.
Definition at line 79 of file otbImageRegionSquareTileSplitter.h.
| typedef itk::Size<VImageDimension> otb::ImageRegionSquareTileSplitter< VImageDimension >::SizeType |
Size typedef support. A size is used to define region bounds.
Definition at line 104 of file otbImageRegionSquareTileSplitter.h.
| typedef SizeType::SizeValueType otb::ImageRegionSquareTileSplitter< VImageDimension >::SizeValueType |
Definition at line 105 of file otbImageRegionSquareTileSplitter.h.
| typedef itk::ImageRegionSplitter<VImageDimension> otb::ImageRegionSquareTileSplitter< VImageDimension >::Superclass |
Definition at line 80 of file otbImageRegionSquareTileSplitter.h.
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inlineprotected |
Definition at line 128 of file otbImageRegionSquareTileSplitter.h.
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inlineoverrideprotected |
Definition at line 131 of file otbImageRegionSquareTileSplitter.h.
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privatedelete |
| virtual::itk::LightObject::Pointer otb::ImageRegionSquareTileSplitter< VImageDimension >::CreateAnother | ( | void | ) | const |
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inlinestatic |
Dimension of the image available at run time.
Definition at line 94 of file otbImageRegionSquareTileSplitter.h.
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virtual |
Run-time type information (and related methods).
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override |
How many pieces can the specified region be split? A given region cannot always be divided into the requested number of pieces. For instance, if the numberOfPieces exceeds the number of pixels along a certain dimensions, then some splits will not be possible.
Definition at line 32 of file otbImageRegionSquareTileSplitter.hxx.
References otbMsgDevMacro.
Referenced by otb::ImageRegionAdaptativeSplitter< VImageDimension >::EstimateSplitMap().
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override |
Get a region definition that represents the ith piece a specified region. The "numberOfPieces" specified should be less than or equal to what GetNumberOfSplits() returns.
Definition at line 62 of file otbImageRegionSquareTileSplitter.hxx.
Referenced by otb::ImageRegionAdaptativeSplitter< VImageDimension >::EstimateSplitMap().
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virtual |
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virtual |
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static |
Method for creation through the object factory.
Referenced by otb::ImageRegionAdaptativeSplitter< VImageDimension >::EstimateSplitMap().
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privatedelete |
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overrideprotected |
Definition at line 107 of file otbImageRegionSquareTileSplitter.hxx.
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virtual |
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static |
Dimension of the image available at compile time.
Definition at line 91 of file otbImageRegionSquareTileSplitter.h.
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private |
Definition at line 140 of file otbImageRegionSquareTileSplitter.h.
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private |
Definition at line 141 of file otbImageRegionSquareTileSplitter.h.
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private |
Definition at line 142 of file otbImageRegionSquareTileSplitter.h.
1.8.17
