#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 3184 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 3206 of file processor.h. 03207 { 03208 return "Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels. Mystery processor."; 03209 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 3189 of file processor.h. Referenced by process_inplace(). 03190 {
03191 return NAME;
03192 }
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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 3198 of file processor.h. References EMAN::TypeDict::put(). 03199 { 03200 TypeDict d; 03201 d.put("value1", EMObject::FLOAT, "val1 is dx/dy"); 03202 d.put("value2", EMObject::FLOAT, "val2 is lowpass freq cutoff in pixels"); 03203 return d; 03204 }
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Definition at line 3193 of file processor.h. 03194 { 03195 return new CutoffBlockProcessor(); 03196 }
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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 1822 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. 01823 { 01824 if (!image) { 01825 LOGWARN("NULL Image"); 01826 return; 01827 } 01828 int nz = image->get_zsize(); 01829 01830 if (nz > 1) { 01831 LOGERR("%s Processor doesn't support 3D", get_name().c_str()); 01832 throw ImageDimensionException("3D model not supported"); 01833 } 01834 01835 int nx = image->get_xsize(); 01836 int ny = image->get_ysize(); 01837 01838 float value1 = params["value1"]; 01839 float value2 = params["value2"]; 01840 01841 int v1 = (int) value1; 01842 int v2 = (int) value2; 01843 if (v2 > v1 / 2) { 01844 LOGERR("invalid value2 '%f' in CutoffBlockProcessor", value2); 01845 return; 01846 } 01847 01848 if (v2 <= 0) { 01849 v2 = v1; 01850 } 01851 01852 float *data = image->get_data(); 01853 int y = 0, x = 0; 01854 for (y = 0; y <= ny - v1; y += v1) { 01855 for (x = 0; x <= nx - v1; x += v1) { 01856 01857 EMData *clip = image->get_clip(Region(x, y, v1, v1)); 01858 EMData *fft = clip->do_fft(); 01859 01860 float *fft_data = fft->get_data(); 01861 float sum = 0; 01862 int nitems = 0; 01863 01864 for (int i = -v2; i < v2; i++) { 01865 for (int j = 0; j < v2; j++) { 01866 if (j == 0 && i == 0) { 01867 continue; 01868 } 01869 01870 #ifdef _WIN32 01871 if (_hypot(j, i) < value2) { 01872 #else 01873 if (hypot(j, i) < value2) { 01874 #endif 01875 int t = j * 2 + (i + v1 / 2) * (v1 + 2); 01876 sum += (fft_data[t] * fft_data[t] + fft_data[t + 1] * fft_data[t + 1]); 01877 nitems++; 01878 } 01879 } 01880 } 01881 01882 if( clip ) 01883 { 01884 delete clip; 01885 clip = 0; 01886 } 01887 01888 float mean = sum / nitems; 01889 01890 for (int i = y; i < y + v1; i++) { 01891 for (int j = x; j < x + v1; j++) { 01892 data[i * nx + j] = mean; 01893 } 01894 } 01895 } 01896 } 01897 01898 memset(&data[y * nx], 0, (ny - y) * nx * sizeof(float)); 01899 01900 for (int i = 0; i < ny; i++) { 01901 memset(&data[i * nx + x], 0, (nx - x) * sizeof(float)); 01902 } 01903 01904 image->update(); 01905 }
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Definition at line 122 of file processor.cpp. |