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


Public Member Functions | |
| XGradientProcessor () | |
| string | get_name () const |
| Get the processor's name. | |
| void | process_inplace (EMData *image) |
| To process an image in-place. | |
| string | get_desc () const |
| Get the descrition of this specific processor. | |
| TypeDict | get_param_types () const |
| Get processor parameter information in a dictionary. | |
Static Public Member Functions | |
| Processor * | NEW () |
Static Public Attributes | |
| const string | NAME = "math.edge.xgradient" |
Definition at line 529 of file processor.h.
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Definition at line 532 of file processor.h. 00532 {}
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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 546 of file processor.h. 00547 {
00548 return "Determines the image gradient in the x direction";
00549 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 534 of file processor.h. 00535 {
00536 return NAME;
00537 }
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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 551 of file processor.h. 00552 {
00553 TypeDict d;
00554 return d;
00555 }
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Definition at line 541 of file processor.h. 00542 {
00543 return new XGradientProcessor();
00544 }
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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 9229 of file processor.cpp. References EMAN::EMData::clip_inplace(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), ImageDimensionException, ImageFormatException, EMAN::EMData::is_complex(), nx, ny, EMAN::EMData::process_inplace(), EMAN::EMData::set_size(), and EMAN::EMData::set_value_at(). 09230 {
09231 if (image->is_complex()) throw ImageFormatException("Cannot edge detect a complex image");
09232
09233 EMData* e = new EMData();
09234 int nx = image->get_xsize();
09235 int ny = image->get_ysize();
09236 int nz = image->get_zsize();
09237
09238 if ( nz == 1 && ny == 1 ) {
09239 if ( nx < 3 ) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09240
09241 e->set_size(3,1,1);
09242 e->set_value_at(0,-1);
09243 e->set_value_at(2, 1);
09244
09245 Region r = Region(-nx/2+1,nx);
09246 e->clip_inplace(r);
09247 } else if ( nz == 1 ) {
09248 if ( nx < 3 || ny < 3 ) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09249 e->set_size(3,3,1);
09250 e->set_value_at(0,0,-1);
09251 e->set_value_at(0,1,-2);
09252 e->set_value_at(0,2,-1);
09253
09254 e->set_value_at(2,0,1);
09255 e->set_value_at(2,1,2);
09256 e->set_value_at(2,2,1);
09257 Region r = Region(-nx/2+1,-ny/2+1,nx,ny);
09258 e->clip_inplace(r);
09259 } else {
09260 if ( nx < 3 || ny < 3 || nz < 3) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09261 e->set_size(3,3,3);
09262 e->set_value_at(0,0,0,-1);
09263 e->set_value_at(0,1,0,-1);
09264 e->set_value_at(0,2,0,-1);
09265 e->set_value_at(0,0,1,-1);
09266 e->set_value_at(0,1,1,-8);
09267 e->set_value_at(0,2,1,-1);
09268 e->set_value_at(0,0,2,-1);
09269 e->set_value_at(0,1,2,-1);
09270 e->set_value_at(0,2,2,-1);
09271
09272 e->set_value_at(2,0,0,1);
09273 e->set_value_at(2,1,0,1);
09274 e->set_value_at(2,2,0,1);
09275 e->set_value_at(2,0,1,1);
09276 e->set_value_at(2,1,1,8);
09277 e->set_value_at(2,2,1,1);
09278 e->set_value_at(2,0,2,1);
09279 e->set_value_at(2,1,2,1);
09280 e->set_value_at(2,2,2,1);
09281
09282 Region r = Region(-nx/2+1,-ny/2+1,-nz/2+1,nx,ny,nz);
09283 e->clip_inplace(r);
09284 }
09285
09286 Dict conv_parms;
09287 conv_parms["with"] = e;
09288 image->process_inplace("math.convolution", conv_parms);
09289 image->process_inplace("xform.phaseorigin.tocenter");
09290
09291 delete e;
09292 }
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Definition at line 69 of file processor.cpp. |
1.3.9.1