#include <processor.h>
Inheritance diagram for EMAN::RotationalAverageProcessor:
Public Member Functions | |
void | process_inplace (EMData *image) |
To process an image in-place. | |
string | get_name () const |
Get the processor's name. | |
string | get_desc () const |
Get the descrition of this specific processor. | |
Static Public Member Functions | |
Processor * | NEW () |
Static Public Attributes | |
const string | NAME = "math.rotationalaverage" |
Definition at line 4406 of file processor.h.
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Get the descrition of this specific processor. This function must be overwritten by a subclass.
Implements EMAN::Processor. Definition at line 4421 of file processor.h. 04422 { 04423 return "Makes image circularly/spherically symmetric."; 04424 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 4411 of file processor.h. 04412 {
04413 return NAME;
04414 }
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Definition at line 4416 of file processor.h. 04417 { 04418 return new RotationalAverageProcessor(); 04419 }
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To process an image in-place. For those processors which can only be processed out-of-place, override this function to just print out some error message to remind user call the out-of-place version.
Implements EMAN::Processor. Definition at line 4154 of file processor.cpp. References EMAN::EMData::calc_radial_dist(), dist(), EMAN::Util::fast_floor(), EMAN::EMData::get_data(), EMAN::EMData::get_ndim(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), EMAN::Util::hypot3(), ImageDimensionException, EMAN::EMData::is_complex(), LOGWARN, nx, ny, rdata, EMAN::EMData::update(), x, and y. 04155 { 04156 if (!image || image->is_complex()) { 04157 LOGWARN("only works on real image. do nothing."); 04158 return; 04159 } 04160 04161 if (image->get_ndim() <= 0 || image->get_ndim() > 3) throw ImageDimensionException("radial average processor only works for 2D and 3D images"); 04162 04163 float *rdata = image->get_data(); 04164 int nx = image->get_xsize(); 04165 int ny = image->get_ysize(); 04166 04167 vector < float >dist = image->calc_radial_dist(nx / 2, 0, 1,0); 04168 04169 float midx = (float)((int)nx/2); 04170 float midy = (float)((int)ny/2); 04171 04172 size_t c = 0; 04173 if (image->get_ndim() == 2) { 04174 for (int y = 0; y < ny; y++) { 04175 for (int x = 0; x < nx; x++, c++) { 04176 #ifdef _WIN32 04177 float r = (float) _hypot(x - midx, y - midy); 04178 #else 04179 float r = (float) hypot(x - midx, y - midy); 04180 #endif //_WIN32 04181 04182 04183 int i = (int) floor(r); 04184 r -= i; 04185 if (i >= 0 && i < nx / 2 - 1) { 04186 rdata[c] = dist[i] * (1.0f - r) + dist[i + 1] * r; 04187 } 04188 else if (i < 0) { 04189 rdata[c] = dist[0]; 04190 } 04191 else { 04192 rdata[c] = 0; 04193 } 04194 } 04195 } 04196 } 04197 else if (image->get_ndim() == 3) { 04198 int nz = image->get_zsize(); 04199 float midz = (float)((int)nz/2); 04200 float r; 04201 int i; 04202 for (int z = 0; z < nz; ++z) { 04203 for (int y = 0; y < ny; ++y) { 04204 for (int x = 0; x < nx; ++x, ++c) { 04205 04206 r = (float) Util::hypot3(x - midx, y - midy, z - midz); 04207 04208 i = Util::fast_floor(r); 04209 r -= i; 04210 if (i >= 0 && i < nx / 2 - 1) { 04211 rdata[c] = dist[i] * (1.0f - r) + dist[i + 1] * r; 04212 } 04213 else if (i < 0) { 04214 rdata[c] = dist[0]; 04215 } 04216 else { 04217 rdata[c] = 0; 04218 } 04219 } 04220 } 04221 } 04222 } 04223 04224 image->update(); 04225 }
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Definition at line 160 of file processor.cpp. |