#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 5791 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 5801 of file processor.h. 05802 { 05803 return "Replace a source image as a strict Gaussian "; 05804 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 5796 of file processor.h. 05797 {
05798 return NAME;
05799 }
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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 5811 of file processor.h. References EMAN::TypeDict::put(). 05812 { 05813 TypeDict d; 05814 d.put("x_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on x direction"); 05815 d.put("y_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on y direction"); 05816 d.put("z_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on z direction"); 05817 d.put("x_center", EMObject::FLOAT, "center for this Gaussian blob on x direction" ); 05818 d.put("y_center", EMObject::FLOAT, "center for this Gaussian blob on y direction" ); 05819 d.put("z_center", EMObject::FLOAT, "center for this Gaussian blob on z direction" ); 05820 return d; 05821 }
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Definition at line 5806 of file processor.h. 05807 { 05808 return new TestImagePureGaussian(); 05809 }
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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 7232 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. 07233 { 07234 preprocess(image); 07235 07236 float x_sigma = params["x_sigma"]; 07237 float y_sigma = params["y_sigma"]; 07238 float z_sigma = params["z_sigma"]; 07239 07240 float x_center = params["x_center"]; 07241 float y_center = params["y_center"]; 07242 float z_center = params["z_center"]; 07243 07244 int nx = image->get_xsize(); 07245 int ny = image->get_ysize(); 07246 int nz = image->get_zsize(); 07247 07248 float x_twosig2 = 2*x_sigma*x_sigma; 07249 float y_twosig2 = 2*y_sigma*y_sigma; 07250 float z_twosig2 = 2*z_sigma*z_sigma; 07251 07252 float sr2pi = sqrt( 2.0f*(float)pi ); 07253 float norm = 1.0f/ ( x_sigma*sr2pi ); 07254 if (ny > 1) { 07255 norm *= 1.0f/ ( y_sigma*sr2pi ); 07256 if (nz > 1) norm *= 1.0f/ ( z_sigma*sr2pi ); 07257 } 07258 07259 float z, y, x, sum, val; 07260 for (int iz=0; iz < nz; ++iz) { 07261 z = static_cast<float>(iz) - z_center; 07262 for (int iy=0; iy < ny; ++iy) { 07263 y = static_cast<float>(iy) - y_center; 07264 for (int ix=0; ix < nx; ++ix) { 07265 x = static_cast<float>(ix) - x_center; 07266 sum = x*x/x_twosig2 + y*y/y_twosig2 + z*z/z_twosig2; 07267 val = norm*exp(-sum); 07268 (*image)(ix,iy,iz) = val; 07269 } 07270 } 07271 } 07272 image->update(); 07273 }
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Definition at line 195 of file processor.cpp. |