#include <processor.h>
Inheritance diagram for EMAN::FlipProcessor:
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 TypeDict | get_param_types () const |
Get processor parameter information in a dictionary. | |
virtual string | get_desc () const |
Get the descrition of this specific processor. | |
Static Public Member Functions | |
Processor * | NEW () |
Static Public Attributes | |
const string | NAME = "xform.flip" |
axis | 'x', 'y', or 'z' axis. 'x' means horizonal flip; 'y' means vertical flip; |
Definition at line 4503 of file processor.h.
|
Get the descrition of this specific processor. This function must be overwritten by a subclass.
Implements EMAN::Processor. Definition at line 4525 of file processor.h. 04526 { 04527 return "Mirrors an image along the specified axis, preserving the center. This will introduce a plane of 0's for even box sizes. Use 'xform.mirror' processor to avoid the zero plane, but not preserve the center."; 04528 }
|
|
Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 4508 of file processor.h. 04509 {
04510 return NAME;
04511 }
|
|
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 4518 of file processor.h. References EMAN::TypeDict::put(). 04519 { 04520 TypeDict d; 04521 d.put("axis", EMObject::STRING, "'x', 'y', or 'z' axis."); 04522 return d; 04523 }
|
|
Definition at line 4513 of file processor.h. 04514 { 04515 return new FlipProcessor(); 04516 }
|
|
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 4300 of file processor.cpp. References EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), LOGWARN, nx, ny, EMAN::Processor::params, EMAN::EMData::process_inplace(), t, EMAN::EMData::update(), x, and y. 04301 { 04302 ENTERFUNC; 04303 if (!image) { 04304 LOGWARN("NULL Image"); 04305 return; 04306 } 04307 string axis = (const char*)params["axis"]; 04308 04309 #ifdef EMAN2_USING_CUDA 04310 if (EMData::usecuda == 1 && image->getcudarwdata()) { 04311 //cout << "flip processor" << endl; 04312 float array[12] = {1.0, 0.0, 0.0, 0.0, 04313 0.0, 1.0, 0.0, 0.0, 04314 0.0, 0.0, 1.0, 0.0}; 04315 if (axis == "x" || axis == "X") { // horizontal flip 04316 array[0] = -1.0; 04317 }else if (axis == "y" || axis == "Y") { // vertical flip 04318 array[5] = -1.0; 04319 } 04320 else if (axis == "z" || axis == "Z") { // vertical flip 04321 array[10] = -1.0; 04322 } 04323 Transform t(array); 04324 Dict params("transform",(Transform*)&t); 04325 image->process_inplace("xform",params); 04326 04327 EXITFUNC; 04328 return; 04329 } 04330 #endif 04331 04332 04333 float *d = image->get_data(); 04334 int nx = image->get_xsize(); 04335 int ny = image->get_ysize(); 04336 int nz = image->get_zsize(); 04337 04338 size_t nxy = nx * ny; 04339 04340 04341 // Note in all cases the origin is nx/2, ny/2 and nz/2 04342 // This means when flipping even sized dimensions that some pixels are redundant. 04343 // Here redundant pixels are set to zero, however, should this change to something 04344 // like the mean. 04345 if (axis == "x" || axis == "X") { // Horizontal flip 04346 int offset = (nx%2 == 0); 04347 size_t idx1, idx2; 04348 for(int z = 0; z < nz; ++z) { 04349 for(int y = 0; y < ny; ++y) { 04350 if (offset != 0 ) { 04351 idx1 = z*nxy + y*nx; 04352 d[idx1] = 0; // Here's where you'd make it the mean 04353 } 04354 for(int x = offset; x < nx / 2; ++x) { 04355 idx1 = z*nxy + y*nx + x; 04356 idx2 = z*nxy + y*nx + (nx-x-1+offset); 04357 std::swap(d[idx1], d[idx2]); 04358 } 04359 04360 } 04361 } 04362 } 04363 04364 else if (axis == "y" || axis == "Y") { // vertical flip 04365 int offset = (ny%2 == 0); 04366 for(int z=0; z<nz; ++z) { 04367 if (offset != 0) { 04368 std::fill(d+z*nxy,d+(size_t)z*nxy+nx,0); // So if we have change it to the mean it's easy to do so. (instead of using memset) 04369 } 04370 for(int y=offset; y<ny/2; ++y) { 04371 for(int x=0; x<nx; ++x) { 04372 std::swap(d[(size_t)z*nxy + y*nx +x], d[(size_t)z*nxy + (ny -y -1+offset)*nx +x]); 04373 } 04374 } 04375 } 04376 } 04377 else if (axis == "z" || axis == "Z") { //z axis flip 04378 int offset = (nz%2 == 0); 04379 if (offset != 0) { 04380 std::fill(d,d+nxy,0);// So if we have change it to the mean it's easy to do so. (instead of using memset) 04381 } 04382 size_t idx1, idx2; 04383 for(int z=offset; z<nz/2; ++z) { 04384 for(int y=0; y<ny; ++y) { 04385 for(int x=0; x<nx; ++x) { 04386 idx1 = (size_t)z*nxy + y*nx + x; 04387 idx2 = (size_t)(nz-z-1+offset)*nxy + y*nx + x; 04388 std::swap(d[idx1], d[idx2]); 04389 } 04390 } 04391 } 04392 } 04393 04394 image->update(); 04395 EXITFUNC; 04396 }
|
|
Definition at line 163 of file processor.cpp. |