/usr/include/rtd/FloatImageData.h is in skycat 3.1.2+starlink1~b-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | // -*-c++-*-
/*
* E.S.O. - VLT project
*
* "@(#) $Id: FloatImageData.h,v 1.1.1.1 2009/03/31 14:11:52 cguirao Exp $"
*
* FloatImageData.h - class definitions for class FloatImageData
*
* See the man page ImageData(3) for a complete description of this class
* library.
*
* who when what
* -------------- -------- ----------------------------------------
* Allan Brighton 05/10/95 Created
* Peter W. Draper 04/03/98 Added llookup
* P.Biereichel 22/03/99 Added definitions for bias subtraction
* Peter W. Draper 29/10/07 Added colorScale
*/
#include <sys/types.h>
#include "ImageData.h"
// This class is used for images where the raw data is made up of ints
class FloatImageData : public ImageData {
private:
// value of blank pixel, if known (if haveBlankPixel_ is nonzero)
float blank_;
double bias_; // offset for conversion to short lookup index
double scale_; // factor for conversion to short lookup index
// local methods used to get short index in lookup table
short scaleToShort(float);
// as above, but unsigned
inline ushort convertToUshort(float f) {
return ushort(scaleToShort(f));
}
// Return X image pixel value for raw image value.
// Convert the given float image value to byte, scaling to short
// first and then using the short value as an index in the color
// lookup table.
inline byte lookup(float f) {return lookup_[(ushort)scaleToShort(f)];}
inline unsigned long llookup(float f) {return lookup_[(ushort)scaleToShort(f)];}
// return NTOH converted value evtl. subtracted with corresponding bias value
float getVal(float* p, int idx);
protected:
// initialize conversion from base type to short,
void initShortConversion();
// sprintf format for (x y value)
virtual char* getXYValueFmt() {return (char *)"%.1f %.1f %.2f";}
// sprintf format for image pixel value
virtual char* getValueFmt() {return (char *)"%.2f";}
int getXsamples(float *rawImage, int idx, int wbox, float *samples);
int getBsamples(float *rawImage, int idx, int wbox, float *samples);
int getCsamples(float *rawImage, int idx, int wbox, float *samples);
float getMedian(float *samples, int n);
float getBoxVal(float *rawImage, int idx, int wbox, float *samples, int xs);
float getRMS(float *samples, int n);
void colorScale(int ncolors, unsigned long* colors);
public:
// constructor
FloatImageData(const char* name, const ImageIO& imio, int verbose)
: ImageData(name, imio, verbose),
blank_(0),
bias_(0.0),
scale_(1.0) {}
// return class name as a string
virtual const char* classname() { return "FloatImageData"; }
// return the data type of the raw data
int dataType() {return FLOAT_IMAGE;}
// return true if the data type is signed
int isSigned() {return 1;}
// return a copy of this object
ImageData* copy() {return new FloatImageData(*this);}
// include declarations for methods that differ only in raw data type
# include "ImageTemplates.h"
};
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