MrSID Decode SDK for Raster Reference Manual
9.0.0.3864
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change dynamic range or datatype of the samples of the image More...
#include <lti_dynamicRangeFilter.h>
Public Member Functions | |
LT_STATUS | initialize (LTIImageStage *srcImage, const LTIPixel *srcDRMin=NULL, const LTIPixel *srcDRMax=NULL, LTIDataType dstDataType=LTI_DATATYPE_INVALID) |
initializer More... | |
LT_STATUS | initialize (LTIImageStage *srcImage, LTIDataType dstDataType) |
initializer (for compatibly with LTIDataTypeTransformer) More... | |
LT_STATUS | initialize (LTIImageStage *srcImage, const LTIPixel *srcMin, const LTIPixel *srcMax, const LTIPixel &dstMin, const LTIPixel &dstMax) |
initializer More... | |
virtual lt_int64 | getEncodingCost (const LTIScene &scene) const |
get the cost to encode this scene More... | |
virtual lt_uint32 | getModifications (const LTIScene &scene) const |
get the modification bitfield for this image More... | |
LT_STATUS | setSrcMinMax (const LTIPixel &srcMin, const LTIPixel &srcMax) |
LT_STATUS | setDstMinMax (const LTIPixel &srcMin, const LTIPixel &srcMax) |
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const LTIPixel & | getPixelProps () const |
get the pixel properties of the image More... | |
const LTIPixel & | getMinDynamicRange () const |
get the minimum dynamic range value of image More... | |
const LTIPixel & | getMaxDynamicRange () const |
get the maximum dynamic range value of image More... | |
LT_STATUS | overridePixelBPS (lt_uint8 bps) |
override the bits-per-sample of the image's (sample's) datatype More... | |
LT_STATUS | overrideDynamicRange (const LTIPixel &drmin, const LTIPixel &drmax) |
override the dynamic range of the image More... | |
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const LTIPixel * | getBackgroundPixel () const |
get the values of the background pixel More... | |
const LTIPixel * | getNoDataPixel () const |
get the values of the "no data" (transparency) pixel More... | |
LT_STATUS | overrideBackgroundPixel (const LTIPixel *backgroundPixel) |
override the background color of the image More... | |
LT_STATUS | overrideNoDataPixel (const LTIPixel *nodataPixel) |
override the "no data" (transparency) color of the image More... | |
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lt_uint32 | getWidth () const |
get image width More... | |
lt_uint32 | getHeight () const |
get image height More... | |
LT_STATUS | getDimsAtMag (double mag, lt_uint32 &width, lt_uint32 &height) const |
get image width and height at given magnification More... | |
const LTIPixelLookupTable * | getPixelLookupTable () const |
get the color lookup table, if any More... | |
const LTIGeoCoord & | getGeoCoord () const |
get the geographic coordinates of the image More... | |
bool | isGeoCoordImplicit () const |
is geo information "real" or not More... | |
const LTIMetadataDatabase & | getMetadata () const |
get the metadata associated with the image More... | |
double | getMinMagnification () const |
get the minimum magnification More... | |
double | getMaxMagnification () const |
get the maximum magnification More... | |
bool | isSelective () const |
check if image supports "random access" decoding More... | |
void | setProgressDelegate (LTIProgressDelegate *delegate) |
set progress delegate More... | |
LTIProgressDelegate * | getProgressDelegate () const |
get progress delegate More... | |
void | setInterruptDelegate (LTIInterruptDelegate *delegate) |
set interrupt delegate More... | |
LTIInterruptDelegate * | getInterruptDelegate () const |
get interrupt delegate More... | |
lt_uint32 | getStripHeight () const |
get strip height More... | |
LT_STATUS | setStripHeight (lt_uint32 stripHeight) |
set the strip height More... | |
lt_int64 | getEncodingCost (const LTIScene &scene) const |
get the cost to encode this scene More... | |
bool | getReaderScene (const LTIScene &decodeScene, LTIScene &readerScene) const |
get the underlying scene to be used More... | |
LT_STATUS | overrideGeoCoord (const LTIGeoCoord &geoCoord) |
override the geographic coordinates of the image More... | |
LT_STATUS | overridePixelLookupTable (const LTIPixelLookupTable *pixelLookupTable) |
override the CLUT of the image More... | |
LT_STATUS | overrideMetadata (const LTIMetadataDatabase &metadata) |
override the metadata of the image More... | |
LTIMaskSource * | getMask () const |
bool | getPipelineInfo (LTIPipelineInfo info) const |
LTIImageStage * | getPreviousStage (void) const |
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LT_STATUS | read (const LTIScene &scene, LTISceneBuffer &buffer) |
read (decode) a scene from the image More... | |
virtual LT_STATUS | readBegin (const LTIPixel &pixelProps, const LTIScene &fullScene) |
start strip-based read More... | |
virtual LT_STATUS | readStrip (LTISceneBuffer &buffer, const LTIScene &stripScene) |
read a strip from the image More... | |
virtual LT_STATUS | readEnd () |
finish strip-based read More... | |
lt_uint32 | getNumStrips () const |
get number of strips in scene More... | |
LTIScene | getStripScene (lt_uint32 stripNumber) const |
get a strip for current scene More... | |
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lt_uint16 | getNumBands () const |
get number of bands More... | |
LTIColorSpace | getColorSpace () const |
get colorspace More... | |
LTIDataType | getDataType () const |
get data type More... | |
bool | isNaturalDynamicRange () const |
check if the range is "complete" or not More... | |
lt_int64 | getNominalImageSizeWithoutAlpha () const |
get the nominal size of the image, not considering the alpha band More... | |
lt_int64 | getNominalImageSizeWithAlpha () const |
get the nominal size of the image, including the alpha band More... | |
void | getGeoPoint (LTIPosition position, double &x, double &y) const |
get position of a named point More... | |
LTIPixel * | createBackgroundPixel () const |
return new background pixel More... | |
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virtual void | retain (void) const |
increment reference counter More... | |
virtual void | release (void) const |
decrement the reference counter and delete the object when the counter is zero More... | |
Static Public Member Functions | |
static LTIDynamicRangeFilter * | create (void) |
static LT_STATUS | push (LTIImageStage *&pipeline, const LTIPixel &pixelProps, bool applyDynamicRange) |
static LT_STATUS | transformBuffer (const LTIPixel &srcMin, const LTIPixel &srcMax, const LTISceneBuffer &srcBuffer, const LTIPixel &dstMin, const LTIPixel &dstMax, LTISceneBuffer &dstBuffer, lt_uint32 numCols, lt_uint32 numRows) |
static LT_STATUS | transformPixel (const LTIPixel &srcMin, const LTIPixel &srcMax, const LTIPixel &srcPixel, const LTIPixel &dstMin, const LTIPixel &dstMax, LTIPixel &dstPixel) |
Protected Member Functions | |
LTIDynamicRangeFilter (void) | |
virtual | ~LTIDynamicRangeFilter (void) |
LT_STATUS | decodeBegin (const LTIPixel &pixelProps, const LTIScene &fullScene) |
start strip-based read More... | |
LT_STATUS | decodeStrip (LTISceneBuffer &stripBuffer, const LTIScene &stripScene) |
read a strip from the image More... | |
LT_STATUS | decodeEnd (void) |
finish strip-based read More... | |
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LTIImageFilter (void) | |
virtual | ~LTIImageFilter (void) |
LT_STATUS | decodeBegin (const LTIPixel &pixelProps, const LTIScene &fullScene) |
start strip-based read More... | |
LT_STATUS | decodeStrip (LTISceneBuffer &stripBuffer, const LTIScene &stripScene) |
read a strip from the image More... | |
LT_STATUS | decodeEnd (void) |
finish strip-based read More... | |
LT_STATUS | init (LTIImageStage *previousStage) |
void | releasePreviousStageNow (void) |
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LTIImageStage (void) | |
virtual | ~LTIImageStage (void) |
LT_STATUS | fillBackground (const LTIScene &scene, LTISceneBuffer &buffer) |
fill the background of the scene More... | |
LT_STATUS | fillBackground (const LTIScene &scene, LTISceneBuffer &buffer, const LTIPixel &color) |
fill the scene to given pixel More... | |
bool | isBandSelected (const LTIPixel &pixelProps) const |
const LTIScene & | getFullScene () const |
get full scene More... | |
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LTIImage (void) | |
virtual | ~LTIImage (void) |
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LTIReferenceCountedObject (void) | |
virtual | ~LTIReferenceCountedObject (void) |
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LTIOverrideBackgroundPixelData () | |
~LTIOverrideBackgroundPixelData () | |
LT_STATUS | setBackgroundPixel (const LTIPixel *backgroundPixel) |
set the background color of the image More... | |
LT_STATUS | setNoDataPixel (const LTIPixel *nodataPixel) |
set the "no data" (transparency) color of the image More... | |
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LTIOverridePixelPropsData () | |
~LTIOverridePixelPropsData () | |
LT_STATUS | setPixelProps (const LTIPixel &pixelProps) |
set pixel properties of the image More... | |
LT_STATUS | setPixelBPS (lt_uint8 bps) |
LT_STATUS | setDynamicRange (const LTIPixel &drmin, const LTIPixel &drmax) |
set the dynamic range of the image More... | |
LT_STATUS | setDefaultDynamicRange (void) |
set the dynamic range of the image More... | |
Additional Inherited Members | |
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LTIPixel * | m_backgroundPixel |
LTIPixel * | m_nodataPixel |
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LTIPixel * | m_pixelProps |
LTIPixel * | m_drminPixel |
LTIPixel * | m_drmaxPixel |
Adjusts the sample values to fit the given dynamic range and datatype.
Definition at line 33 of file lti_dynamicRangeFilter.h.
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This function is called by readBegin() to start the actual class-specific work for decoding a scene.
Derived classes must implement this function.
This function should never be called directly.
pixelProps | the band selection |
fullScene | the full scene to be read |
Implements LTIImageStage.
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This function is called by readEnd() to complete the actual class-specific work for decoding a scene.
Derived classes must implement this function.
This function should never be called directly.
Implements LTIImageStage.
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This function is called by readStrip() to implement the actual class-specific work for decoding a strip of the scene.
Derived classes must implement this function.
This function should never be called directly.
stripBuffer | the buffer to read the pixels into |
stripScene | the scene for this strip being decoded |
Implements LTIImageStage.
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Returns the "cost" to encode this scene, for use by those image writers which have usage metering enabled. The typical cost is equal to the nominal image size (width * height * numBands * bytesPerSample), but this is overridden for special situations, e.g. the mosaic filter.
scene | the scene to be charged for |
Implements LTIImageStage.
This function returns a bitfield describing what kinds of modifications have been made to the image during and since its initial encoding.
scene | the area pertaining to this request |
Reimplemented from LTIImageFilter.
LT_STATUS LTIDynamicRangeFilter::initialize | ( | LTIImageStage * | srcImage, |
const LTIPixel * | srcDRMin = NULL , |
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const LTIPixel * | srcDRMax = NULL , |
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LTIDataType | dstDataType = LTI_DATATYPE_INVALID |
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Creates an image stage with the sample data adjusted from the given dynamic range values to the full dynamic range of the given datatype. If not specified, the target datatype will be that of the source image. If not specified, the filter will get the dynamic range from the source image (i.e., it will use whatever is in the image metadata).
srcImage | the base image |
srcDRMin | the minimum dynamic range value of the source data |
srcDRMax | the maximum dynamic range value of the source data |
dstDataType | the datatype of the new image stage |
LT_STATUS LTIDynamicRangeFilter::initialize | ( | LTIImageStage * | srcImage, |
LTIDataType | dstDataType | ||
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This initializer will cause the filter to do a straight datatype conversion of the source image. Advertised dynamic range in the source image will be translated to the appropriate value for the new datatype.
srcImage | the base image |
dstDataType | the datatype of the new image stage |
LT_STATUS LTIDynamicRangeFilter::initialize | ( | LTIImageStage * | srcImage, |
const LTIPixel * | srcMin, | ||
const LTIPixel * | srcMax, | ||
const LTIPixel & | dstMin, | ||
const LTIPixel & | dstMax | ||
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Adjusts the sample data of the source image by scaling it from the given source and destination dynamic range pixels. Samples falling outside of the given source range will be clipped to the range.
srcImage | the base image |
srcMin | minimum of the dynamic range present in the source |
srcMax | maximum of the dynamic range present in the source |
dstMin | minimum bound of desired output dynamic range |
dstMax | maximum bound of desired output dynamic range |
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