#include <processor.h>
Inheritance diagram for EMAN::CutoffBlockProcessor:
Public Member Functions | |
void | process_inplace (EMData *image) |
To process an image in-place. | |
string | get_name () const |
Get the processor's name. | |
TypeDict | get_param_types () const |
Get processor parameter information in a dictionary. | |
string | get_desc () const |
Get the descrition of this specific processor. | |
Static Public Member Functions | |
Processor * | NEW () |
Static Public Attributes | |
const string | NAME = "eman1.filter.blockcutoff" |
Mystery processor.
value1 | val1 is dx/dy | |
value2 | val2 is lowpass freq cutoff in pixels |
Definition at line 3263 of file processor.h.
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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 3285 of file processor.h. 03286 { 03287 return "Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels. Mystery processor."; 03288 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 3268 of file processor.h. Referenced by process_inplace(). 03269 {
03270 return NAME;
03271 }
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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 3277 of file processor.h. References EMAN::TypeDict::put(). 03278 { 03279 TypeDict d; 03280 d.put("value1", EMObject::FLOAT, "val1 is dx/dy"); 03281 d.put("value2", EMObject::FLOAT, "val2 is lowpass freq cutoff in pixels"); 03282 return d; 03283 }
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Definition at line 3272 of file processor.h. 03273 { 03274 return new CutoffBlockProcessor(); 03275 }
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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 1861 of file processor.cpp. References data, EMAN::EMData::do_fft(), EMAN::EMData::get_clip(), EMAN::EMData::get_data(), get_name(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), ImageDimensionException, LOGERR, LOGWARN, nx, ny, t, EMAN::EMData::update(), x, and y. 01862 { 01863 if (!image) { 01864 LOGWARN("NULL Image"); 01865 return; 01866 } 01867 int nz = image->get_zsize(); 01868 01869 if (nz > 1) { 01870 LOGERR("%s Processor doesn't support 3D", get_name().c_str()); 01871 throw ImageDimensionException("3D model not supported"); 01872 } 01873 01874 int nx = image->get_xsize(); 01875 int ny = image->get_ysize(); 01876 01877 float value1 = params["value1"]; 01878 float value2 = params["value2"]; 01879 01880 int v1 = (int) value1; 01881 int v2 = (int) value2; 01882 if (v2 > v1 / 2) { 01883 LOGERR("invalid value2 '%f' in CutoffBlockProcessor", value2); 01884 return; 01885 } 01886 01887 if (v2 <= 0) { 01888 v2 = v1; 01889 } 01890 01891 float *data = image->get_data(); 01892 int y = 0, x = 0; 01893 for (y = 0; y <= ny - v1; y += v1) { 01894 for (x = 0; x <= nx - v1; x += v1) { 01895 01896 EMData *clip = image->get_clip(Region(x, y, v1, v1)); 01897 EMData *fft = clip->do_fft(); 01898 01899 float *fft_data = fft->get_data(); 01900 float sum = 0; 01901 int nitems = 0; 01902 01903 for (int i = -v2; i < v2; i++) { 01904 for (int j = 0; j < v2; j++) { 01905 if (j == 0 && i == 0) { 01906 continue; 01907 } 01908 01909 #ifdef _WIN32 01910 if (_hypot(j, i) < value2) { 01911 #else 01912 if (hypot(j, i) < value2) { 01913 #endif 01914 int t = j * 2 + (i + v1 / 2) * (v1 + 2); 01915 sum += (fft_data[t] * fft_data[t] + fft_data[t + 1] * fft_data[t + 1]); 01916 nitems++; 01917 } 01918 } 01919 } 01920 01921 if( clip ) 01922 { 01923 delete clip; 01924 clip = 0; 01925 } 01926 01927 float mean = sum / nitems; 01928 01929 for (int i = y; i < y + v1; i++) { 01930 for (int j = x; j < x + v1; j++) { 01931 data[i * nx + j] = mean; 01932 } 01933 } 01934 } 01935 } 01936 01937 memset(&data[y * nx], 0, (ny - y) * nx * sizeof(float)); 01938 01939 for (int i = 0; i < ny; i++) { 01940 memset(&data[i * nx + x], 0, (nx - x) * sizeof(float)); 01941 } 01942 01943 image->update(); 01944 }
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Definition at line 123 of file processor.cpp. |