#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 4500 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 4522 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 4505 of file processor.h.
References NAME.
04506 { 04507 return NAME; 04508 }
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 4515 of file processor.h.
References EMAN::TypeDict::put(), and EMAN::EMObject::STRING.
04516 { 04517 TypeDict d; 04518 d.put("axis", EMObject::STRING, "'x', 'y', or 'z' axis. 'x' means horizonal flip; 'y' means vertical flip;"); 04519 return d; 04520 }
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 4246 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.
04247 { 04248 ENTERFUNC; 04249 if (!image) { 04250 LOGWARN("NULL Image"); 04251 return; 04252 } 04253 string axis = (const char*)params["axis"]; 04254 #ifdef EMAN2_USING_CUDA 04255 if (image->gpu_operation_preferred()) { 04256 float array[12] = {1.0, 0.0, 0.0, 0.0, 04257 0.0, 1.0, 0.0, 0.0, 04258 0.0, 0.0, 1.0, 0.0}; 04259 if (axis == "x" || axis == "X") { // horizontal flip 04260 array[0] = -1.0; 04261 }else if (axis == "y" || axis == "Y") { // vertical flip 04262 array[5] = -1.0; 04263 } 04264 else if (axis == "z" || axis == "Z") { // vertical flip 04265 array[10] = -1.0; 04266 } 04267 Transform t(array); 04268 Dict params("transform",(Transform*)&t); 04269 image->process_inplace("xform",params); 04270 EXITFUNC; 04271 return; 04272 } 04273 #endif 04274 04275 04276 float *d = image->get_data(); 04277 int nx = image->get_xsize(); 04278 int ny = image->get_ysize(); 04279 int nz = image->get_zsize(); 04280 04281 size_t nxy = nx * ny; 04282 04283 04284 // Note in all cases the origin is nx/2, ny/2 and nz/2 04285 // This means when flipping even sized dimensions that some pixels are redundant. 04286 // Here redundant pixels are set to zero, however, should this change to something 04287 // like the mean. 04288 if (axis == "x" || axis == "X") { // Horizontal flip 04289 int offset = (nx%2 == 0); 04290 size_t idx1, idx2; 04291 for(int z = 0; z < nz; ++z) { 04292 for(int y = 0; y < ny; ++y) { 04293 if (offset != 0 ) { 04294 idx1 = z*nxy + y*nx; 04295 d[idx1] = 0; // Here's where you'd make it the mean 04296 } 04297 for(int x = offset; x < nx / 2; ++x) { 04298 idx1 = z*nxy + y*nx + x; 04299 idx2 = z*nxy + y*nx + (nx-x-1+offset); 04300 std::swap(d[idx1], d[idx2]); 04301 } 04302 04303 } 04304 } 04305 } 04306 04307 else if (axis == "y" || axis == "Y") { // vertical flip 04308 int offset = (ny%2 == 0); 04309 for(int z=0; z<nz; ++z) { 04310 if (offset != 0) { 04311 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) 04312 } 04313 for(int y=offset; y<ny/2; ++y) { 04314 for(int x=0; x<nx; ++x) { 04315 std::swap(d[z*nxy + y*nx +x], d[z*nxy + (ny -y -1+offset)*nx +x]); 04316 } 04317 } 04318 } 04319 } 04320 else if (axis == "z" || axis == "Z") { //z axis flip 04321 int offset = (nz%2 == 0); 04322 if (offset != 0) { 04323 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) 04324 } 04325 size_t idx1, idx2; 04326 for(int z=offset; z<nz/2; ++z) { 04327 for(int y=0; y<ny; ++y) { 04328 for(int x=0; x<nx; ++x) { 04329 idx1 = z*nxy + y*nx + x; 04330 idx2 = (nz-z-1+offset)*nxy + y*nx + x; 04331 std::swap(d[idx1], d[idx2]); 04332 } 04333 } 04334 } 04335 } 04336 04337 image->update(); 04338 EXITFUNC; 04339 }
const string FlipProcessor::NAME = "xform.flip" [static] |