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


Public Member Functions | |
| YGradientProcessor () | |
| 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.ygradient" |
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Definition at line 563 of file processor.h. 00563 {}
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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 577 of file processor.h. 00578 {
00579 return "Determines the image gradient in the y direction";
00580 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 565 of file processor.h. 00566 {
00567 return NAME;
00568 }
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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 583 of file processor.h. 00584 {
00585 TypeDict d;
00586 return d;
00587 }
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Definition at line 572 of file processor.h. 00573 {
00574 return new YGradientProcessor();
00575 }
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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 9423 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(). 09424 {
09425 if (image->is_complex()) throw ImageFormatException("Cannot edge detect a complex image");
09426
09427 EMData* e = new EMData();
09428 int nx = image->get_xsize();
09429 int ny = image->get_ysize();
09430 int nz = image->get_zsize();
09431
09432 if ( nz == 1 && ny == 1 ) {
09433 throw ImageDimensionException("Error - cannot detect Y edges for an image that that is 1D!");
09434 } else if ( nz == 1 ) {
09435 if ( nx < 3 || ny < 3 ) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09436 e->set_size(3,3,1);
09437 e->set_value_at(0,0,-1);
09438 e->set_value_at(1,0,-2);
09439 e->set_value_at(2,0,-1);
09440
09441 e->set_value_at(0,2,1);
09442 e->set_value_at(1,2,2);
09443 e->set_value_at(2,2,1);
09444 Region r = Region(-nx/2+1,-ny/2+1,nx,ny);
09445 e->clip_inplace(r);
09446 } else {
09447 if ( nx < 3 || ny < 3 || nz < 3) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09448 e->set_size(3,3,3);
09449 e->set_value_at(0,0,0,-1);
09450 e->set_value_at(1,0,0,-1);
09451 e->set_value_at(2,0,0,-1);
09452 e->set_value_at(0,0,1,-1);
09453 e->set_value_at(1,0,1,-8);
09454 e->set_value_at(2,0,1,-1);
09455 e->set_value_at(0,0,2,-1);
09456 e->set_value_at(1,0,2,-1);
09457 e->set_value_at(2,0,2,-1);
09458
09459 e->set_value_at(0,2,0,1);
09460 e->set_value_at(1,2,0,1);
09461 e->set_value_at(2,2,0,1);
09462 e->set_value_at(0,2,1,1);
09463 e->set_value_at(1,2,1,8);
09464 e->set_value_at(2,2,1,1);
09465 e->set_value_at(0,2,2,1);
09466 e->set_value_at(1,2,2,1);
09467 e->set_value_at(2,2,2,1);
09468
09469 Region r = Region(-nx/2+1,-ny/2+1,-nz/2+1,nx,ny,nz);
09470 e->clip_inplace(r);
09471 }
09472
09473 Dict conv_parms;
09474 conv_parms["with"] = e;
09475 image->process_inplace("math.convolution", conv_parms);
09476
09477 delete e;
09478 }
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Definition at line 70 of file processor.cpp. |
1.3.9.1