#include <aligner.h>
Inheritance diagram for EMAN::RotatePrecenterAligner:
Public Member Functions | |
virtual EMData * | align (EMData *this_img, EMData *to_img, const string &cmp_name="dot", const Dict &cmp_params=Dict()) const |
To align 'this_img' with another image passed in through its parameters. | |
virtual EMData * | align (EMData *this_img, EMData *to_img) const |
virtual string | get_name () const |
Get the Aligner's name. | |
virtual string | get_desc () const |
virtual TypeDict | get_param_types () const |
Static Public Member Functions | |
static Aligner * | NEW () |
Static Public Attributes | |
static const string | NAME = "rotate_precenter" |
Definition at line 302 of file aligner.h.
virtual EMData* EMAN::RotatePrecenterAligner::align | ( | EMData * | this_img, | |
EMData * | to_img | |||
) | const [inline, virtual] |
Implements EMAN::Aligner.
Definition at line 308 of file aligner.h.
References align().
00309 { 00310 return align(this_img, to_img, "dot", Dict()); 00311 }
EMData * RotatePrecenterAligner::align | ( | EMData * | this_img, | |
EMData * | to_img, | |||
const string & | cmp_name = "dot" , |
|||
const Dict & | cmp_params = Dict() | |||
) | const [virtual] |
To align 'this_img' with another image passed in through its parameters.
The alignment uses a user-given comparison method to compare the two images. If none is given, a default one is used.
this_img | The image to be compared. | |
to_img | 'this_img" is aligned with 'to_img'. | |
cmp_name | The comparison method to compare the two images. | |
cmp_params | The parameter dictionary for comparison method. |
Implements EMAN::Aligner.
Definition at line 352 of file aligner.cpp.
References EMAN::Util::calc_best_fft_size(), EMAN::EMData::calc_ccfx(), data, EMAN::Util::find_max(), EMAN::EMData::get_data(), EMAN::EMData::get_ysize(), ny, EMAN::EMData::process(), EMAN::EMData::set_attr(), EMAN::Transform::set_rotation(), and EMAN::EMData::unwrap().
Referenced by align().
00354 { 00355 if (!to) { 00356 return 0; 00357 } 00358 00359 int ny = this_img->get_ysize(); 00360 int size = Util::calc_best_fft_size((int) (M_PI * ny * 1.5)); 00361 EMData *e1 = this_img->unwrap(4, ny * 7 / 16, size, 0, 0, 1); 00362 EMData *e2 = to->unwrap(4, ny * 7 / 16, size, 0, 0, 1); 00363 EMData *cf = e1->calc_ccfx(e2, 0, ny); 00364 00365 float *data = cf->get_data(); 00366 00367 float peak = 0; 00368 int peak_index = 0; 00369 Util::find_max(data, size, &peak, &peak_index); 00370 float a = (float) ((1.0f - 1.0f * peak_index / size) * 180. * 2); 00371 00372 Transform rot; 00373 rot.set_rotation(Dict("type","2d","alpha",(float)(a*180./M_PI))); 00374 EMData* rslt = this_img->process("xform",Dict("transform",&rot)); 00375 rslt->set_attr("xform.align2d",&rot); 00376 // 00377 // Transform* t = get_set_align_attr("xform.align2d",rslt,this_img); 00378 // t->set_rotation(Dict("type","2d","alpha",-a)); 00379 // 00380 // EMData* result this_img->transform(Dict("type","2d","alpha",(float)(a*180./M_PI))); 00381 // 00382 // cf->set_attr("xform.align2d",t); 00383 // delete t; 00384 // cf->update(); 00385 00386 if( e1 ) 00387 { 00388 delete e1; 00389 e1 = 0; 00390 } 00391 00392 if( e2 ) 00393 { 00394 delete e2; 00395 e2 = 0; 00396 } 00397 00398 if (cf) { 00399 delete cf; 00400 cf = 0; 00401 } 00402 return rslt; 00403 }
virtual string EMAN::RotatePrecenterAligner::get_desc | ( | ) | const [inline, virtual] |
Implements EMAN::Aligner.
Definition at line 318 of file aligner.h.
00319 { 00320 return "Performs rotational alignment and works accurately if the image is precentered"; 00321 }
virtual string EMAN::RotatePrecenterAligner::get_name | ( | ) | const [inline, virtual] |
virtual TypeDict EMAN::RotatePrecenterAligner::get_param_types | ( | ) | const [inline, virtual] |
static Aligner* EMAN::RotatePrecenterAligner::NEW | ( | ) | [inline, static] |
const string RotatePrecenterAligner::NAME = "rotate_precenter" [static] |