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Eliminate all pow() calls in CA_correct_RT.cc

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This commit is contained in:
heckflosse 2016-02-26 22:08:33 +01:00
parent 43c316f43b
commit 84f58da6ff
1 changed files with 27 additions and 14 deletions
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41
rtengine/CA_correct_RT.cc
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@ -26,6 +26,8 @@
#include "rtengine.h"
#include "rawimagesource.h"
#include "rt_math.h"
#define BENCHMARK
#include "StopWatch.h"
using namespace std;
using namespace rtengine;
@ -110,6 +112,7 @@ int RawImageSource::LinEqSolve(int nDim, double* pfMatr, double* pfVect, double*
void RawImageSource::CA_correct_RT(double cared, double cablue)
{
BENCHFUN
// multithreaded by Ingo Weyrich
#define TS 128 // Tile size
#define TSH 64 // Half Tile size
@ -706,7 +709,7 @@ void RawImageSource::CA_correct_RT(double cared, double cablue)
int numblox[3] = {0, 0, 0};
float bstemp[2];
StopWatch Stop1("Median loop");
for (vblock = 1; vblock < vblsz - 1; vblock++)
for (hblock = 1; hblock < hblsz - 1; hblock++) {
// block 3x3 median of blockshifts for robustness
@ -754,23 +757,30 @@ void RawImageSource::CA_correct_RT(double cared, double cablue)
numblox[c]++;
for (dir = 0; dir < 2; dir++) {
double powVblockInit = 1.0;
for (i = 0; i < polyord; i++) {
double powHblockInit = 1.0;
for (j = 0; j < polyord; j++) {
for (m = 0; m < polyord; m++)
double powVblock = powVblockInit;
for (m = 0; m < polyord; m++) {
double powHblock = powHblockInit;
for (n = 0; n < polyord; n++) {
polymat[c][dir][numpar * (polyord * i + j) + (polyord * m + n)] += (float)pow((double)vblock, i + m) * pow((double)hblock, j + n) * blockwt[vblock * hblsz + hblock];
polymat[c][dir][numpar * (polyord * i + j) + (polyord * m + n)] += powVblock * powHblock * blockwt[vblock * hblsz + hblock];
powHblock *= hblock;
}
shiftmat[c][dir][(polyord * i + j)] += (float)pow((double)vblock, i) * pow((double)hblock, j) * bstemp[dir] * blockwt[vblock * hblsz + hblock];
powVblock *= vblock;
}
shiftmat[c][dir][(polyord * i + j)] += powVblockInit * powHblockInit * bstemp[dir] * blockwt[vblock * hblsz + hblock];
powHblockInit *= hblock;
}
powVblockInit *= vblock;
//if (c==0 && dir==0) {printf("i= %d j= %d shiftmat= %f \n",i,j,shiftmat[c][dir][(polyord*i+j)]);}
}//monomials
}//dir
}//c
}//blocks
Stop1.stop();
numblox[1] = min(numblox[0], numblox[2]);
//if too few data points, restrict the order of the fit to linear
@ -986,16 +996,19 @@ void RawImageSource::CA_correct_RT(double cared, double cablue)
//CA auto correction; use CA diagnostic pass to set shift parameters
blockshifts[(vblock)*hblsz + hblock][0][0] = blockshifts[(vblock) * hblsz + hblock][0][1] = 0;
blockshifts[(vblock)*hblsz + hblock][2][0] = blockshifts[(vblock) * hblsz + hblock][2][1] = 0;
for (i = 0; i < polyord; i++)
double powVblock = 1.0;
for (i = 0; i < polyord; i++) {
double powHblock = powVblock;
for (j = 0; j < polyord; j++) {
//printf("i= %d j= %d polycoeff= %f \n",i,j,fitparams[0][0][polyord*i+j]);
blockshifts[(vblock)*hblsz + hblock][0][0] += (float)pow((float)vblock, i) * pow((float)hblock, j) * fitparams[0][0][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][0][1] += (float)pow((float)vblock, i) * pow((float)hblock, j) * fitparams[0][1][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][2][0] += (float)pow((float)vblock, i) * pow((float)hblock, j) * fitparams[2][0][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][2][1] += (float)pow((float)vblock, i) * pow((float)hblock, j) * fitparams[2][1][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][0][0] += powHblock * fitparams[0][0][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][0][1] += powHblock * fitparams[0][1][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][2][0] += powHblock * fitparams[2][0][polyord * i + j];
blockshifts[(vblock)*hblsz + hblock][2][1] += powHblock * fitparams[2][1][polyord * i + j];
powHblock *= hblock;
}
powVblock *= vblock;
}
blockshifts[(vblock)*hblsz + hblock][0][0] = LIM(blockshifts[(vblock) * hblsz + hblock][0][0], -bslim, bslim);
blockshifts[(vblock)*hblsz + hblock][0][1] = LIM(blockshifts[(vblock) * hblsz + hblock][0][1], -bslim, bslim);
blockshifts[(vblock)*hblsz + hblock][2][0] = LIM(blockshifts[(vblock) * hblsz + hblock][2][0], -bslim, bslim);