From e8268332983d8c7c28f868467c0e82f5b35e8511 Mon Sep 17 00:00:00 2001 From: "N.N." Date: Mon, 12 Oct 2009 22:56:45 +0000 Subject: passed everything to c++ for opencv 2.0 svn path=/trunk/externals/pdp_opencv/; revision=12584 --- pdp_opencv_dft.cc | 397 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 397 insertions(+) create mode 100755 pdp_opencv_dft.cc (limited to 'pdp_opencv_dft.cc') diff --git a/pdp_opencv_dft.cc b/pdp_opencv_dft.cc new file mode 100755 index 0000000..e9f72b2 --- /dev/null +++ b/pdp_opencv_dft.cc @@ -0,0 +1,397 @@ +/* + * Pure Data Packet module. + * Copyright (c) by Tom Schouten + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include +#include +#include +#include +#include + +#include "pdp.h" + +#ifndef _EiC +#include "cv.h" +#endif + +typedef struct pdp_opencv_dft_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + t_outlet *x_outlet1; + int x_packet0; + int x_packet1; + int x_packet2; + int x_dropped; + int x_queue_id; + + int x_width; + int x_height; + int x_size; + int x_calculate; + int dft_M; + int dft_N; + + // The output and temporary images + IplImage *image; + IplImage *gray; + IplImage *input_re; + IplImage *input_im; + IplImage *input_co; + CvMat *dft_A; + IplImage *image_re; + IplImage *image_im; + IplImage *image_mout; + IplImage *image_pout; + +} t_pdp_opencv_dft; + +// rearrange the quadrants of Fourier image so that the origin is at +// the image center + +void pdp_opencv_dft_shift_dft(CvArr * src_arr, CvArr * dst_arr ) +{ + CvMat *tmp=NULL; + CvMat q1stub, q2stub; + CvMat q3stub, q4stub; + CvMat d1stub, d2stub; + CvMat d3stub, d4stub; + CvMat * q1, * q2, * q3, * q4; + CvMat * d1, * d2, * d3, * d4; + + CvSize size = cvGetSize(src_arr); + CvSize dst_size = cvGetSize(dst_arr); + int cx, cy; + + if(dst_size.width != size.width || + dst_size.height != size.height){ + error( "pdp_opencv_dft : source and destination arrays must have the same size" ); + } + + if(src_arr==dst_arr){ + tmp = cvCreateMat(size.height/2, size.width/2, cvGetElemType(src_arr)); + } + + cx = size.width/2; + cy = size.height/2; // image center + + q1 = cvGetSubRect( src_arr, &q1stub, cvRect(0,0,cx, cy) ); + q2 = cvGetSubRect( src_arr, &q2stub, cvRect(cx,0,cx,cy) ); + q3 = cvGetSubRect( src_arr, &q3stub, cvRect(cx,cy,cx,cy) ); + q4 = cvGetSubRect( src_arr, &q4stub, cvRect(0,cy,cx,cy) ); + d1 = cvGetSubRect( src_arr, &d1stub, cvRect(0,0,cx,cy) ); + d2 = cvGetSubRect( src_arr, &d2stub, cvRect(cx,0,cx,cy) ); + d3 = cvGetSubRect( src_arr, &d3stub, cvRect(cx,cy,cx,cy) ); + d4 = cvGetSubRect( src_arr, &d4stub, cvRect(0,cy,cx,cy) ); + + if(src_arr!=dst_arr){ + if( !CV_ARE_TYPES_EQ( q1, d1 )){ + error( "pdp_opencv_dft : source and destination arrays must have the same format" ); + } + cvCopy(q3, d1, 0); + cvCopy(q4, d2, 0); + cvCopy(q1, d3, 0); + cvCopy(q2, d4, 0); + } + else{ + cvCopy(q3, tmp, 0); + cvCopy(q1, q3, 0); + cvCopy(tmp, q1, 0); + cvCopy(q4, tmp, 0); + cvCopy(q2, q4, 0); + cvCopy(tmp, q2, 0); + } + if(src_arr==dst_arr){ + cvReleaseMat( &tmp ); + } +} + +static void pdp_opencv_dft_process_rgb(t_pdp_opencv_dft *x) +{ + t_pdp *header = pdp_packet_header(x->x_packet0); + short int *data = (short int *)pdp_packet_data(x->x_packet0); + t_pdp *newheader = pdp_packet_header(x->x_packet1); + short int *newdata = (short int *)pdp_packet_data(x->x_packet1); + t_pdp *phaseheader = pdp_packet_header(x->x_packet2); + short int *phasedata = (short int *)pdp_packet_data(x->x_packet2); + CvMat tmp; + double m,M; + int px,py; + + if ((x->x_width != (t_int)header->info.image.width) || + (x->x_height != (t_int)header->info.image.height)) + { + post("pdp_opencv_dft :: resizing"); + + x->x_width = header->info.image.width; + x->x_height = header->info.image.height; + x->x_size = x->x_width*x->x_height; + + //Destroy cv_images + cvReleaseImage( &x->image ); + //cvReleaseImage( &x->gray ); + cvReleaseImage( &x->input_re ); + cvReleaseImage( &x->input_im ); + cvReleaseImage( &x->input_co ); + cvReleaseMat( &x->dft_A ); + //cvReleaseImage( &x->image_re ); + //cvReleaseImage( &x->image_im ); + //cvReleaseImage( &x->image_mout ); + //cvReleaseImage( &x->image_pout ); + + x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3); + x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1); + x->input_re = cvCreateImage( cvGetSize(x->image), IPL_DEPTH_64F, 1); + x->input_im = cvCreateImage( cvGetSize(x->image), IPL_DEPTH_64F, 1); + x->input_co = cvCreateImage( cvGetSize(x->image), IPL_DEPTH_64F, 2); + x->dft_M = cvGetOptimalDFTSize( x->gray->height - 1 ); + x->dft_N = cvGetOptimalDFTSize( x->gray->width - 1 ); + x->dft_A = cvCreateMat( x->dft_M, x->dft_N, CV_64FC2 ); + x->image_re = cvCreateImage( cvSize(x->dft_N, x->dft_M), IPL_DEPTH_64F, 1); + x->image_im = cvCreateImage( cvSize(x->dft_N, x->dft_M), IPL_DEPTH_64F, 1); + x->image_mout = cvCreateImage( cvSize(x->image->width, x->image->height), IPL_DEPTH_8U, 1); + x->image_pout = cvCreateImage( cvSize(x->image->width, x->image->height), IPL_DEPTH_8U, 1); + } + + newheader->info.image.encoding = PDP_BITMAP_GREY; + newheader->info.image.width = x->x_width; + newheader->info.image.height = x->x_height; + + memcpy( x->image->imageData, data, x->x_size*3 ); + cvCvtColor(x->image, x->gray, CV_BGR2GRAY); + + if ( x->x_calculate ) + { + // discrete fourier transform + cvScale(x->gray, x->input_re, 1.0, 0.0); + cvZero(x->input_im); + cvMerge(x->input_re, x->input_im, NULL, NULL, x->input_co); + + // copy A to dft_A and pad dft_A with zeros + cvGetSubRect( x->dft_A, &tmp, cvRect(0,0, x->gray->width, x->gray->height)); + cvCopy( x->input_co, &tmp, NULL ); + if( x->dft_A->cols > x->gray->width ) + { + cvGetSubRect( x->dft_A, &tmp, cvRect(x->gray->width,0, x->dft_A->cols - x->gray->width, x->gray->height)); + cvZero( &tmp ); + } + + // no need to pad bottom part of dft_A with zeros because of + // use nonzero_rows parameter in cvDFT() call below + cvDFT( x->dft_A, x->dft_A, CV_DXT_FORWARD, x->input_co->height ); + + // Split Fourier in real and imaginary parts + cvSplit( x->dft_A, x->image_re, x->image_im, 0, 0 ); + + // calculate phase + for( py=0; pyimage_re->height; py++ ) { + double* ptrr = (double*) ( x->image_re->imageData + py * x->image_re->widthStep); + double* ptri = (double*) ( x->image_im->imageData + py * x->image_im->widthStep); + float* ptrp = (float*) ( x->image_pout->imageData + py * x->image_pout->widthStep); + for( px=0; pximage_re->width; px++ ) { + (*(ptrp+px)) = cvFastArctan( (float)*(ptri+px), (float)*(ptrr+px) ); + } + } + + // Compute the magnitude of the spectrum Mag = sqrt(Re^2 + Im^2) + cvPow( x->image_re, x->image_re, 2.0); + cvPow( x->image_im, x->image_im, 2.0); + cvAdd( x->image_re, x->image_im, x->image_re, NULL); + cvPow( x->image_re, x->image_re, 0.5 ); + + // Compute log(1 + Mag) + cvAddS( x->image_re, cvScalarAll(1.0), x->image_re, NULL ); // 1 + Mag + cvLog( x->image_re, x->image_re ); // log(1 + Mag) + + // Rearrange the quadrants of Fourier image so that the origin is at + // the image center + pdp_opencv_dft_shift_dft( x->image_re, x->image_re ); + + // normalize image + cvMinMaxLoc(x->image_re, &m, &M, NULL, NULL, NULL); + cvScale(x->image_re, x->image_re, 255.0/(M-m), 255.0*(-m)/(M-m)); + + for( py=0; pyimage_re->height; py++ ) { + double* ptri = (double*) ( x->image_re->imageData + py * x->image_re->widthStep); + unsigned char* ptrp = (unsigned char*) ( x->image_mout->imageData + py * x->image_mout->widthStep); + for( px=0; pximage_re->width; px++ ) { + if ( *(ptrp+px) > 255.0 ) post( "pdp_opencv_dft : error value over 255" ); + (*(ptrp+px)) = (unsigned char)( (*(ptri+px)) ); + } + } + + x->x_calculate=0; + } + + cvCvtColor(x->image_mout, x->image, CV_GRAY2RGB); + memcpy( newdata, x->image->imageData, x->x_size*3 ); + cvCvtColor(x->image_pout, x->image, CV_GRAY2RGB); + memcpy( phasedata, x->image->imageData, x->x_size*3 ); + + return; +} + +static void pdp_opencv_dft_sendpacket(t_pdp_opencv_dft *x) +{ + /* release the packet */ + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = -1; + + /* unregister and propagate if valid dest packet */ + pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1); + + /* unregister and propagate if valid dest packet */ + pdp_packet_pass_if_valid(x->x_outlet1, &x->x_packet2); + + pdp_packet_mark_unused(x->x_packet1); + pdp_packet_mark_unused(x->x_packet2); +} + +static void pdp_opencv_dft_process(t_pdp_opencv_dft *x) +{ + int encoding; + t_pdp *header = 0; + + /* check if image data packets are compatible */ + if ( (header = pdp_packet_header(x->x_packet0)) + && (PDP_BITMAP == header->type)){ + + /* pdp_opencv_dft_process inputs and write into active inlet */ + switch(pdp_packet_header(x->x_packet0)->info.image.encoding){ + + case PDP_BITMAP_RGB: + x->x_packet1 = pdp_packet_clone_rw(x->x_packet0); + x->x_packet2 = pdp_packet_clone_rw(x->x_packet0); + pdp_queue_add(x, (void*)pdp_opencv_dft_process_rgb, (void*)pdp_opencv_dft_sendpacket, &x->x_queue_id); + break; + + default: + /* don't know the type, so dont pdp_opencv_dft_process */ + break; + + } + } + +} + +static void pdp_opencv_dft_calculate(t_pdp_opencv_dft *x) +{ + x->x_calculate=1; +} + +static void pdp_opencv_dft_input_0(t_pdp_opencv_dft *x, t_symbol *s, t_floatarg f) +{ + /* if this is a register_ro message or register_rw message, register with packet factory */ + + if (s == gensym("register_rw")) + x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym((char*)"bitmap/rgb/*") ); + + if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)) + { + /* add the process method and callback to the process queue */ + pdp_opencv_dft_process(x); + } +} + +static void pdp_opencv_dft_free(t_pdp_opencv_dft *x) +{ + int i; + + //destroy cv structures + cvReleaseImage( &x->image ); + //cvReleaseImage( &x->gray ); + cvReleaseImage( &x->input_re ); + cvReleaseImage( &x->input_im ); + cvReleaseImage( &x->input_co ); + cvReleaseMat( &x->dft_A ); + //cvReleaseImage( &x->image_re ); + //cvReleaseImage( &x->image_im ); + //cvReleaseImage( &x->image_mout ); + //cvReleaseImage( &x->image_pout ); + + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); + +} + +t_class *pdp_opencv_dft_class; + + +void *pdp_opencv_dft_new(t_floatarg f) +{ + int i; + + t_pdp_opencv_dft *x = (t_pdp_opencv_dft *)pd_new(pdp_opencv_dft_class); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + x->x_outlet1 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_packet1 = -1; + x->x_packet2 = -1; + x->x_queue_id = -1; + + x->x_width = 320; + x->x_height = 240; + x->x_size = x->x_width * x->x_height; + + x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3); + x->gray = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 1); + x->input_re = cvCreateImage( cvGetSize(x->image), IPL_DEPTH_64F, 1); + x->input_im = cvCreateImage( cvGetSize(x->image), IPL_DEPTH_64F, 1); + x->input_co = cvCreateImage( cvGetSize(x->image), IPL_DEPTH_64F, 2); + x->dft_M = cvGetOptimalDFTSize( x->gray->height - 1 ); + x->dft_N = cvGetOptimalDFTSize( x->gray->width - 1 ); + x->dft_A = cvCreateMat( x->dft_M, x->dft_N, CV_64FC2 ); + x->image_re = cvCreateImage( cvSize(x->dft_N, x->dft_M), IPL_DEPTH_64F, 1); + x->image_im = cvCreateImage( cvSize(x->dft_N, x->dft_M), IPL_DEPTH_64F, 1); + x->image_mout = cvCreateImage( cvSize(x->dft_N, x->dft_M), IPL_DEPTH_8U, 1); + x->image_pout = cvCreateImage( cvSize(x->dft_N, x->dft_M), IPL_DEPTH_8U, 1); + + // calculate first dft + x->x_calculate=1; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_opencv_dft_setup(void) +{ + + post( " pdp_opencv_dft"); + pdp_opencv_dft_class = class_new(gensym("pdp_opencv_dft"), (t_newmethod)pdp_opencv_dft_new, + (t_method)pdp_opencv_dft_free, sizeof(t_pdp_opencv_dft), 0, A_DEFFLOAT, A_NULL); + + class_addmethod(pdp_opencv_dft_class, (t_method)pdp_opencv_dft_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_opencv_dft_class, (t_method)pdp_opencv_dft_calculate, gensym("bang"), A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1