160     CV_CALL( p_model->prev_frame = cvCloneImage(first_frame));  in cvCreateFGDStatModel()
204         cvReleaseImage( &model->prev_frame );  in icvReleaseFGDStatModel()
219 cvChangeDetection( IplImage*  prev_frame,  in cvChangeDetection()  argument
226     if( !prev_frame  in cvChangeDetection()
229     ||   prev_frame->nChannels  != 3  in cvChangeDetection()
232     ||   prev_frame->depth  != IPL_DEPTH_8U  in cvChangeDetection()
235     ||   prev_frame->width  != curr_frame->width  in cvChangeDetection()
236     ||   prev_frame->height != curr_frame->height  in cvChangeDetection()
237     ||   prev_frame->width  != change_mask->width  in cvChangeDetection()
238     ||   prev_frame->height != change_mask->height  in cvChangeDetection()
246     for (b=0 ; b<prev_frame->nChannels ; b++) {  in cvChangeDetection()
256             uchar* rowStart2 = (uchar*)prev_frame->imageData + y * prev_frame->widthStep + b;  in cvChangeDetection()
257 … ; x<curr_frame->width ; x++, rowStart1+=curr_frame->nChannels, rowStart2+=prev_frame->nChannels) {  in cvChangeDetection()
294         for (y=0 ; y<prev_frame->height ; y++)  in cvChangeDetection()
297             uchar* rowStart2 = (uchar*)(prev_frame->imageData) + y * prev_frame->widthStep + b;  in cvChangeDetection()
300                 rowStart2+=prev_frame->nChannels, rowStart3+=change_mask->nChannels) {  in cvChangeDetection()
333     IplImage*      prev_frame = model->prev_frame;  in icvUpdateFGDStatModel()  local
351     cvChangeDetection( prev_frame, curr_frame, model->Ftd );  in icvUpdateFGDStatModel()
370                 uchar* prev_data = (uchar*)(prev_frame->imageData) + i*prev_frame->widthStep + j*3;  in icvUpdateFGDStatModel()
495             uchar *prev_data = (uchar*)(prev_frame->imageData)+i*prev_frame->widthStep+j*3;  in icvUpdateFGDStatModel()
735     cvCopy( curr_frame, model->prev_frame );  in icvUpdateFGDStatModel()