| 46 | } |
| 47 | |
| 48 | bool IPLIFFT::processInputData(IPLData* data , int, bool) |
| 49 | { |
| 50 | IPLComplexImage* complexImageData = data->toComplexImage(); |
| 51 | if (NULL == complexImageData) { |
| 52 | // TODO write an error message |
| 53 | return false; |
| 54 | } |
| 55 | _complexImage = new IPLComplexImage(*complexImageData); |
| 56 | |
| 57 | // delete previous result |
| 58 | delete _result; |
| 59 | _result = NULL; |
| 60 | |
| 61 | int width = _complexImage->width(); |
| 62 | int height = _complexImage->height(); |
| 63 | |
| 64 | _result = new IPLImage(IPL_IMAGE_GRAYSCALE, width, height); |
| 65 | |
| 66 | // get properties |
| 67 | //int mode = getProcessPropertyInt("mode"); |
| 68 | |
| 69 | int progress = 0; |
| 70 | int maxProgress = height; |
| 71 | |
| 72 | _complexImage->IFFT(); |
| 73 | |
| 74 | float dc = _complexImage->real(0,0); |
| 75 | |
| 76 | float min = _complexImage->minReal(); |
| 77 | float max = _complexImage->maxReal(); |
| 78 | |
| 79 | float diff = max-min; |
| 80 | |
| 81 | for(int y=0; y<height; y++) |
| 82 | { |
| 83 | // progress |
| 84 | notifyProgressEventHandler(100*progress++/maxProgress); |
| 85 | for(int x=0; x<width; x++) |
| 86 | { |
| 87 | float value = (_complexImage->real(x,y) - min) / diff; |
| 88 | value = (value < 0) ? 0 : value; |
| 89 | value = (value > 1) ? 1 : value; |
| 90 | _result->plane(0)->p(x, y) = value; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | std::stringstream s; |
| 95 | s << "DC: "; |
| 96 | s << dc; |
| 97 | addInformation(s.str()); |
| 98 | |
| 99 | return true; |
| 100 | } |
| 101 | |
| 102 | IPLData* IPLIFFT::getResultData( int ) |
| 103 | { |