#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 3222 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 3244 of file processor.h. 03245 { 03246 return "Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels. Mystery processor."; 03247 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 3227 of file processor.h. Referenced by process_inplace(). 03228 {
03229 return NAME;
03230 }
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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 3236 of file processor.h. References EMAN::TypeDict::put(). 03237 { 03238 TypeDict d; 03239 d.put("value1", EMObject::FLOAT, "val1 is dx/dy"); 03240 d.put("value2", EMObject::FLOAT, "val2 is lowpass freq cutoff in pixels"); 03241 return d; 03242 }
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Definition at line 3231 of file processor.h. 03232 { 03233 return new CutoffBlockProcessor(); 03234 }
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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 1850 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. 01851 { 01852 if (!image) { 01853 LOGWARN("NULL Image"); 01854 return; 01855 } 01856 int nz = image->get_zsize(); 01857 01858 if (nz > 1) { 01859 LOGERR("%s Processor doesn't support 3D", get_name().c_str()); 01860 throw ImageDimensionException("3D model not supported"); 01861 } 01862 01863 int nx = image->get_xsize(); 01864 int ny = image->get_ysize(); 01865 01866 float value1 = params["value1"]; 01867 float value2 = params["value2"]; 01868 01869 int v1 = (int) value1; 01870 int v2 = (int) value2; 01871 if (v2 > v1 / 2) { 01872 LOGERR("invalid value2 '%f' in CutoffBlockProcessor", value2); 01873 return; 01874 } 01875 01876 if (v2 <= 0) { 01877 v2 = v1; 01878 } 01879 01880 float *data = image->get_data(); 01881 int y = 0, x = 0; 01882 for (y = 0; y <= ny - v1; y += v1) { 01883 for (x = 0; x <= nx - v1; x += v1) { 01884 01885 EMData *clip = image->get_clip(Region(x, y, v1, v1)); 01886 EMData *fft = clip->do_fft(); 01887 01888 float *fft_data = fft->get_data(); 01889 float sum = 0; 01890 int nitems = 0; 01891 01892 for (int i = -v2; i < v2; i++) { 01893 for (int j = 0; j < v2; j++) { 01894 if (j == 0 && i == 0) { 01895 continue; 01896 } 01897 01898 #ifdef _WIN32 01899 if (_hypot(j, i) < value2) { 01900 #else 01901 if (hypot(j, i) < value2) { 01902 #endif 01903 int t = j * 2 + (i + v1 / 2) * (v1 + 2); 01904 sum += (fft_data[t] * fft_data[t] + fft_data[t + 1] * fft_data[t + 1]); 01905 nitems++; 01906 } 01907 } 01908 } 01909 01910 if( clip ) 01911 { 01912 delete clip; 01913 clip = 0; 01914 } 01915 01916 float mean = sum / nitems; 01917 01918 for (int i = y; i < y + v1; i++) { 01919 for (int j = x; j < x + v1; j++) { 01920 data[i * nx + j] = mean; 01921 } 01922 } 01923 } 01924 } 01925 01926 memset(&data[y * nx], 0, (ny - y) * nx * sizeof(float)); 01927 01928 for (int i = 0; i < ny; i++) { 01929 memset(&data[i * nx + x], 0, (nx - x) * sizeof(float)); 01930 } 01931 01932 image->update(); 01933 }
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Definition at line 128 of file processor.cpp. |