#include <HxImageTem2d.h>
Inheritance diagram for HxImageTem2d::
Public Methods | |
| HxImageTem2d (int width=1, int height=1) | |
| HxImageTem2d (size_t *sizes) | |
| HxImageTem2d (const HxImageTem2d &) | |
| virtual | ~HxImageTem2d () |
| int | width () const |
| int | height () const |
| virtual DataPtrType | dataPtrClone () const |
| virtual void | geometricOp2d (HxImageData *arg, HxMatrix func, HxGeoIntType gi, HxVec3Double translate, HxValue background) |
| Geometric operation on 2D images. More... | |
| virtual HxImageData * | projectDomain (int dimension, int coordinate) |
| virtual void | inverseProjectDomain (int dimension, int coordinate, HxImageData *arg) |
| virtual void | getValues (HxPointListConstIter first, HxPointListConstIter last, HxValueListBackInserter) |
| virtual void | getRgbPixels2d (int *pixels, HxString dispF, int bufWidth, int bufHeight, int VX, int VY, int VW, int VH, double SX, double SY, double scaleX, double scaleY, HxGeoIntType gi) const |
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Geometric operation on 2D images.
Reimplemented from HxImageData.
00085 {
00086 DataPtrType objPtr = dataPtrClone();
00087 HxImageTem<ImageSigT>* argTem = (HxImageTem<ImageSigT>*) arg;
00088 DataPtrType argPtr = argTem->dataPtrClone();
00089 int maxArgX = (gi == LINEAR) ? arg->dimensionSize(1) - 2 : arg->dimensionSize(1) - 1;
00090 int maxArgY = (gi == LINEAR) ? arg->dimensionSize(2) - 2 : arg->dimensionSize(2) - 1;
00091 ArithType pixVal;
00092 int x, y;
00093 for (y=0; y<height(); y++) {
00094 for (x=0; x<width(); x++) {
00095 HxVec3Double vObj(x, y, 1);
00096 HxVec3Double vArg = func * (vObj + translate);
00097 double argXf = vArg.x() / vArg.z(); // homogeneous coordinates
00098 double argYf = vArg.y() / vArg.z();
00099 int argX = int(argXf); // truncate
00100 int argY = int(argYf);
00101 if ((argX < 0) || (argX > maxArgX)
00102 || (argY < 0) || (argY > maxArgY))
00103 pixVal = ArithType(background); // outside image
00104 else {
00105 DataPtrType aPtr = argPtr;
00106 if (gi == LINEAR) {
00107 ArithType alpha = HxScalarDouble(argXf - argX);
00108 ArithType beta = HxScalarDouble(argYf - argY);
00109 aPtr.incXYZ(argX, argY);
00110 ArithType v1 = aPtr.read();
00111 aPtr.incX();
00112 ArithType v2 = aPtr.read();
00113 aPtr.incXYZ(-1, 1);
00114 ArithType v3 = aPtr.read();
00115 aPtr.incX();
00116 ArithType v4 = aPtr.read();
00117 pixVal = v1 + alpha*(v2-v1) + beta*(v3-v1)
00118 + alpha*beta*(v1-v2-v3+v4);
00119 }
00120 else { // gi == NEAREST
00121 aPtr.incXYZ(int(argXf + 0.5), int(argYf + 0.5));
00122 pixVal = aPtr.read();
00123 }
00124 }
00125 objPtr.write(pixVal);
00126 objPtr.incX();
00127 }
00128 }
00129 }
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1.2.12 written by Dimitri van Heesch,
© 1997-2001