#include <processor.h>
Inheritance diagram for EMAN::TestImagePureGaussian:


Public Member Functions | |
| virtual void | process_inplace (EMData *image) |
| To process an image in-place. | |
| virtual string | get_name () const |
| Get the processor's name. | |
| virtual string | get_desc () const |
| Get the descrition of this specific processor. | |
| virtual TypeDict | get_param_types () const |
| Get processor parameter information in a dictionary. | |
Static Public Member Functions | |
| Processor * | NEW () |
Static Public Attributes | |
| const string | NAME = "testimage.puregaussian" |
| x_sigma | sigma value for this Gaussian blob on x direction | |
| y_sigma | sigma value for this Gaussian blob on y direction | |
| z_sigma | sigma value for this Gaussian blob on z direction | |
| x_center | center for this Gaussian blob on x direction | |
| y_center | center for this Gaussian blob on y direction | |
| z_center | center for this Gaussian blob on z direction |
Definition at line 5753 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 5763 of file processor.h. 05764 {
05765 return "Replace a source image as a strict Gaussian ";
05766 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 5758 of file processor.h. 05759 {
05760 return NAME;
05761 }
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Get processor parameter information in a dictionary. Each parameter has one record in the dictionary. Each record contains its name, data-type, and description.
Reimplemented from EMAN::Processor. Definition at line 5773 of file processor.h. References EMAN::TypeDict::put(). 05774 {
05775 TypeDict d;
05776 d.put("x_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on x direction");
05777 d.put("y_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on y direction");
05778 d.put("z_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on z direction");
05779 d.put("x_center", EMObject::FLOAT, "center for this Gaussian blob on x direction" );
05780 d.put("y_center", EMObject::FLOAT, "center for this Gaussian blob on y direction" );
05781 d.put("z_center", EMObject::FLOAT, "center for this Gaussian blob on z direction" );
05782 return d;
05783 }
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Definition at line 5768 of file processor.h. 05769 {
05770 return new TestImagePureGaussian();
05771 }
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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 7204 of file processor.cpp. References EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), norm(), nx, ny, pi, EMAN::TestImageProcessor::preprocess(), sqrt(), EMAN::EMData::update(), x, and y. 07205 {
07206 preprocess(image);
07207
07208 float x_sigma = params["x_sigma"];
07209 float y_sigma = params["y_sigma"];
07210 float z_sigma = params["z_sigma"];
07211
07212 float x_center = params["x_center"];
07213 float y_center = params["y_center"];
07214 float z_center = params["z_center"];
07215
07216 int nx = image->get_xsize();
07217 int ny = image->get_ysize();
07218 int nz = image->get_zsize();
07219
07220 float x_twosig2 = 2*x_sigma*x_sigma;
07221 float y_twosig2 = 2*y_sigma*y_sigma;
07222 float z_twosig2 = 2*z_sigma*z_sigma;
07223
07224 float sr2pi = sqrt( 2.0f*(float)pi );
07225 float norm = 1.0f/ ( x_sigma*sr2pi );
07226 if (ny > 1) {
07227 norm *= 1.0f/ ( y_sigma*sr2pi );
07228 if (nz > 1) norm *= 1.0f/ ( z_sigma*sr2pi );
07229 }
07230
07231 float z, y, x, sum, val;
07232 for (int iz=0; iz < nz; ++iz) {
07233 z = static_cast<float>(iz) - z_center;
07234 for (int iy=0; iy < ny; ++iy) {
07235 y = static_cast<float>(iy) - y_center;
07236 for (int ix=0; ix < nx; ++ix) {
07237 x = static_cast<float>(ix) - x_center;
07238 sum = x*x/x_twosig2 + y*y/y_twosig2 + z*z/z_twosig2;
07239 val = norm*exp(-sum);
07240 (*image)(ix,iy,iz) = val;
07241 }
07242 }
07243 }
07244 image->update();
07245 }
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Definition at line 190 of file processor.cpp. |
1.3.9.1