#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 | |
static Processor * | NEW () |
Static Public Attributes | |
static const string | NAME = "xform.flip" |
axis | 'x', 'y', or 'z' axis. 'x' means horizonal flip; 'y' means vertical flip; |
Definition at line 4540 of file processor.h.
virtual string EMAN::FlipProcessor::get_desc | ( | ) | const [inline, virtual] |
Get the descrition of this specific processor.
This function must be overwritten by a subclass.
Implements EMAN::Processor.
Definition at line 4562 of file processor.h.
virtual string EMAN::FlipProcessor::get_name | ( | ) | const [inline, virtual] |
Get the processor's name.
Each processor is identified by a unique name.
Implements EMAN::Processor.
Definition at line 4545 of file processor.h.
References NAME.
04546 { 04547 return NAME; 04548 }
virtual TypeDict EMAN::FlipProcessor::get_param_types | ( | ) | const [inline, virtual] |
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 4555 of file processor.h.
References EMAN::TypeDict::put(), and EMAN::EMObject::STRING.
04556 { 04557 TypeDict d; 04558 d.put("axis", EMObject::STRING, "'x', 'y', or 'z' axis. 'x' means horizonal flip; 'y' means vertical flip;"); 04559 return d; 04560 }
static Processor* EMAN::FlipProcessor::NEW | ( | ) | [inline, static] |
void FlipProcessor::process_inplace | ( | EMData * | image | ) | [virtual] |
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.
image | The image to be processed. |
Implements EMAN::Processor.
Definition at line 4353 of file processor.cpp.
References ENTERFUNC, EXITFUNC, EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), LOGWARN, EMAN::Processor::params, EMAN::EMData::process_inplace(), t, EMAN::EMData::update(), and x.
04354 { 04355 ENTERFUNC; 04356 if (!image) { 04357 LOGWARN("NULL Image"); 04358 return; 04359 } 04360 string axis = (const char*)params["axis"]; 04361 #ifdef EMAN2_USING_CUDA 04362 if (image->gpu_operation_preferred()) { 04363 float array[12] = {1.0, 0.0, 0.0, 0.0, 04364 0.0, 1.0, 0.0, 0.0, 04365 0.0, 0.0, 1.0, 0.0}; 04366 if (axis == "x" || axis == "X") { // horizontal flip 04367 array[0] = -1.0; 04368 }else if (axis == "y" || axis == "Y") { // vertical flip 04369 array[5] = -1.0; 04370 } 04371 else if (axis == "z" || axis == "Z") { // vertical flip 04372 array[10] = -1.0; 04373 } 04374 Transform t(array); 04375 Dict params("transform",(Transform*)&t); 04376 image->process_inplace("xform",params); 04377 EXITFUNC; 04378 return; 04379 } 04380 #endif 04381 04382 04383 float *d = image->get_data(); 04384 int nx = image->get_xsize(); 04385 int ny = image->get_ysize(); 04386 int nz = image->get_zsize(); 04387 04388 size_t nxy = nx * ny; 04389 04390 04391 // Note in all cases the origin is nx/2, ny/2 and nz/2 04392 // This means when flipping even sized dimensions that some pixels are redundant. 04393 // Here redundant pixels are set to zero, however, should this change to something 04394 // like the mean. 04395 if (axis == "x" || axis == "X") { // Horizontal flip 04396 int offset = (nx%2 == 0); 04397 size_t idx1, idx2; 04398 for(int z = 0; z < nz; ++z) { 04399 for(int y = 0; y < ny; ++y) { 04400 if (offset != 0 ) { 04401 idx1 = z*nxy + y*nx; 04402 d[idx1] = 0; // Here's where you'd make it the mean 04403 } 04404 for(int x = offset; x < nx / 2; ++x) { 04405 idx1 = z*nxy + y*nx + x; 04406 idx2 = z*nxy + y*nx + (nx-x-1+offset); 04407 std::swap(d[idx1], d[idx2]); 04408 } 04409 04410 } 04411 } 04412 } 04413 04414 else if (axis == "y" || axis == "Y") { // vertical flip 04415 int offset = (ny%2 == 0); 04416 for(int z=0; z<nz; ++z) { 04417 if (offset != 0) { 04418 std::fill(d+z*nxy,d+z*nxy+nx,0); // So if we have change it to the mean it's easy to do so. (instead of using memset) 04419 } 04420 for(int y=offset; y<ny/2; ++y) { 04421 for(int x=0; x<nx; ++x) { 04422 std::swap(d[z*nxy + y*nx +x], d[z*nxy + (ny -y -1+offset)*nx +x]); 04423 } 04424 } 04425 } 04426 } 04427 else if (axis == "z" || axis == "Z") { //z axis flip 04428 int offset = (nz%2 == 0); 04429 if (offset != 0) { 04430 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) 04431 } 04432 size_t idx1, idx2; 04433 for(int z=offset; z<nz/2; ++z) { 04434 for(int y=0; y<ny; ++y) { 04435 for(int x=0; x<nx; ++x) { 04436 idx1 = z*nxy + y*nx + x; 04437 idx2 = (nz-z-1+offset)*nxy + y*nx + x; 04438 std::swap(d[idx1], d[idx2]); 04439 } 04440 } 04441 } 04442 } 04443 04444 image->update(); 04445 EXITFUNC; 04446 }
const string FlipProcessor::NAME = "xform.flip" [static] |