| /external/opencv/cv/src/ |
| cvlkpyramid.cpp | 455 double Gxx = 0, Gxy = 0, Gyy = 0, D = 0, minEig = 0;
553 Gxx = Gyy = Gxy = 0;
569 Gxy += ix[x] * iy[x];
574 D = Gxx * Gyy - Gxy * Gxy;
583 minEig = (Gyy + Gxx - sqrt((Gxx-Gyy)*(Gxx-Gyy) + 4.*Gxy*Gxy))/(2*jsz.height*jsz.width);
591 mx = (float) ((Gyy * bx - Gxy * by) * D);
592 my = (float) ((Gxx * by - Gxy * bx) * D);
[all...] |
| /development/perftests/panorama/feature_stab/db_vlvm/ |
| db_feature_detection.cpp | 215 /*Filter vertically five rows of derivatives of length chunk_width into gxx,gxy,gyy*/
216 inline void db_gxx_gxy_gyy_row_f(float *gxx,float *gxy,float *gyy,int chunk_width,
258 gxy[c]=Ixy0+Ixy1*4.0f+Ixy2*6.0f+Ixy3*4.0f+Ixy4;
263 /*Filter vertically five rows of derivatives of length 128 into gxx,gxy,gyy*/
362 /*Filter horizontally the three rows gxx,gxy,gyy into the strength subrow starting at i,j
363 and with width chunk_width. gxx,gxy and gyy are assumed to be four pixels wider than chunk_width
365 inline void db_HarrisStrength_row_f(float **s,float *gxx,float *gxy,float *gyy,int i,int j,int chunk_width)
367 float Gxx,Gxy,Gyy,det,trc;
373 Gxy=gxy[c]+gxy[c+1]*4.0f+gxy[c+2]*6.0f+gxy[c+3]*4.0f+gxy[c+4]
622 float *gxx,*gxy,*gyy; local
665 int *gxx,*gxy,*gyy; local
[all...] |
| /packages/apps/Camera/jni/feature_stab/db_vlvm/ |
| db_feature_detection.cpp | 215 /*Filter vertically five rows of derivatives of length chunk_width into gxx,gxy,gyy*/
216 inline void db_gxx_gxy_gyy_row_f(float *gxx,float *gxy,float *gyy,int chunk_width,
258 gxy[c]=Ixy0+Ixy1*4.0f+Ixy2*6.0f+Ixy3*4.0f+Ixy4;
263 /*Filter vertically five rows of derivatives of length 128 into gxx,gxy,gyy*/
362 /*Filter horizontally the three rows gxx,gxy,gyy into the strength subrow starting at i,j
363 and with width chunk_width. gxx,gxy and gyy are assumed to be four pixels wider than chunk_width
365 inline void db_HarrisStrength_row_f(float **s,float *gxx,float *gxy,float *gyy,int i,int j,int chunk_width)
367 float Gxx,Gxy,Gyy,det,trc;
373 Gxy=gxy[c]+gxy[c+1]*4.0f+gxy[c+2]*6.0f+gxy[c+3]*4.0f+gxy[c+4]
622 float *gxx,*gxy,*gyy; local
665 int *gxx,*gxy,*gyy; local
[all...] |
| /packages/apps/LegacyCamera/jni/feature_stab/db_vlvm/ |
| db_feature_detection.cpp | 215 /*Filter vertically five rows of derivatives of length chunk_width into gxx,gxy,gyy*/
216 inline void db_gxx_gxy_gyy_row_f(float *gxx,float *gxy,float *gyy,int chunk_width,
258 gxy[c]=Ixy0+Ixy1*4.0f+Ixy2*6.0f+Ixy3*4.0f+Ixy4;
263 /*Filter vertically five rows of derivatives of length 128 into gxx,gxy,gyy*/
362 /*Filter horizontally the three rows gxx,gxy,gyy into the strength subrow starting at i,j
363 and with width chunk_width. gxx,gxy and gyy are assumed to be four pixels wider than chunk_width
365 inline void db_HarrisStrength_row_f(float **s,float *gxx,float *gxy,float *gyy,int i,int j,int chunk_width)
367 float Gxx,Gxy,Gyy,det,trc;
373 Gxy=gxy[c]+gxy[c+1]*4.0f+gxy[c+2]*6.0f+gxy[c+3]*4.0f+gxy[c+4]
622 float *gxx,*gxy,*gyy; local
665 int *gxx,*gxy,*gyy; local
[all...] |
