#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 3265 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 3287 of file processor.h. 03288 { 03289 return "Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels. Mystery processor."; 03290 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 3270 of file processor.h. Referenced by process_inplace(). 03271 {
03272 return NAME;
03273 }
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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 3279 of file processor.h. References EMAN::TypeDict::put(). 03280 { 03281 TypeDict d; 03282 d.put("value1", EMObject::FLOAT, "val1 is dx/dy"); 03283 d.put("value2", EMObject::FLOAT, "val2 is lowpass freq cutoff in pixels"); 03284 return d; 03285 }
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Definition at line 3274 of file processor.h. 03275 { 03276 return new CutoffBlockProcessor(); 03277 }
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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 1863 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. 01864 { 01865 if (!image) { 01866 LOGWARN("NULL Image"); 01867 return; 01868 } 01869 int nz = image->get_zsize(); 01870 01871 if (nz > 1) { 01872 LOGERR("%s Processor doesn't support 3D", get_name().c_str()); 01873 throw ImageDimensionException("3D model not supported"); 01874 } 01875 01876 int nx = image->get_xsize(); 01877 int ny = image->get_ysize(); 01878 01879 float value1 = params["value1"]; 01880 float value2 = params["value2"]; 01881 01882 int v1 = (int) value1; 01883 int v2 = (int) value2; 01884 if (v2 > v1 / 2) { 01885 LOGERR("invalid value2 '%f' in CutoffBlockProcessor", value2); 01886 return; 01887 } 01888 01889 if (v2 <= 0) { 01890 v2 = v1; 01891 } 01892 01893 float *data = image->get_data(); 01894 int y = 0, x = 0; 01895 for (y = 0; y <= ny - v1; y += v1) { 01896 for (x = 0; x <= nx - v1; x += v1) { 01897 01898 EMData *clip = image->get_clip(Region(x, y, v1, v1)); 01899 EMData *fft = clip->do_fft(); 01900 01901 float *fft_data = fft->get_data(); 01902 float sum = 0; 01903 int nitems = 0; 01904 01905 for (int i = -v2; i < v2; i++) { 01906 for (int j = 0; j < v2; j++) { 01907 if (j == 0 && i == 0) { 01908 continue; 01909 } 01910 01911 #ifdef _WIN32 01912 if (_hypot(j, i) < value2) { 01913 #else 01914 if (hypot(j, i) < value2) { 01915 #endif 01916 int t = j * 2 + (i + v1 / 2) * (v1 + 2); 01917 sum += (fft_data[t] * fft_data[t] + fft_data[t + 1] * fft_data[t + 1]); 01918 nitems++; 01919 } 01920 } 01921 } 01922 01923 if( clip ) 01924 { 01925 delete clip; 01926 clip = 0; 01927 } 01928 01929 float mean = sum / nitems; 01930 01931 for (int i = y; i < y + v1; i++) { 01932 for (int j = x; j < x + v1; j++) { 01933 data[i * nx + j] = mean; 01934 } 01935 } 01936 } 01937 } 01938 01939 memset(&data[y * nx], 0, (ny - y) * nx * sizeof(float)); 01940 01941 for (int i = 0; i < ny; i++) { 01942 memset(&data[i * nx + x], 0, (nx - x) * sizeof(float)); 01943 } 01944 01945 image->update(); 01946 }
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Definition at line 123 of file processor.cpp. |