From: Callum Date: Mon, 28 Oct 2013 14:59:58 +0000 (+0800) Subject: Wrote code to implement camera X-Git-Url: https://git.ucc.asn.au/?p=matches%2FMCTX3420.git;a=commitdiff_plain;h=591b9856255a646365935a89e9fbe2835e1e43c6 Wrote code to implement camera --- diff --git a/server/dilatometer.c b/server/dilatometer.c index 544c358..83cdc4c 100644 --- a/server/dilatometer.c +++ b/server/dilatometer.c @@ -72,14 +72,14 @@ void Dilatometer_Cleanup() { if (g_capture != NULL) cvReleaseCapture(&g_capture); - if (g_srcRGB != NULL) - cvReleaseMat(&g_srcRGB); + if (frame != NULL) + cvReleaseImageHeader(&frame); + //if (g_srcRGB != NULL) + // cvReleaseMat(&g_srcRGB); // Causing run time error in cvReleaseMat if (g_srcGray != NULL) cvReleaseMat(&g_srcGray); if (g_edges != NULL) cvReleaseMat(&g_edges); - if (frame != NULL) - cvReleaseImageHeader(&frame); } /** @@ -89,11 +89,17 @@ static bool Dilatometer_GetImage() { bool result = true; // If more than one camera is connected, then input needs to be determined, however the camera ID may change after being unplugged - g_capture = cvCreateCameraCapture(0); - //If cvCreateCameraCapture returns NULL there is an error with the camera if( g_capture == NULL) - result = false; - + { + g_capture = cvCreateCameraCapture(0); + //If cvCreateCameraCapture returns NULL there is an error with the camera + if( g_capture == NULL) + { + result = false; + return; + } + } + // Get the frame and convert it to CvMat frame = cvQueryFrame(g_capture); CvMat stub; @@ -129,19 +135,18 @@ void CannyThreshold() //Save the image //cvSaveImage("test_blurred.jpg",g_edges,0); - printf("what about here?\n"); - cvShowImage("display", g_edges); - cvWaitKey(0); + //cvShowImage("display", g_edges); + //cvWaitKey(0); + // Find the edges in the image cvCanny( g_edges, g_edges, lowThreshold, lowThreshold*ratio, kernel_size ); //Save the image //cvSaveImage("test_edge.jpg",g_edges,0); - cvShowImage("display", g_edges); - cvWaitKey(0); - printf("hopeful\n"); + //cvShowImage("display", g_edges); + //cvWaitKey(0); } @@ -276,11 +281,10 @@ int main(int argc, char ** argv) double edge; Dilatometer_GetEdge(&edge,20000); //For testing purposes, overlay the given average line over the image - Draw_Edge(edge); + //Draw_Edge(edge); cvDestroyWindow("display"); Dilatometer_Cleanup(); - } diff --git a/server/dilatometer.h b/server/dilatometer.h index b3b7348..7bb9447 100644 --- a/server/dilatometer.h +++ b/server/dilatometer.h @@ -6,9 +6,12 @@ #include "common.h" //Threshold to determine the edge of the can -#define THRES 200 +#define THRES 230 + +//Number of samples of the image to take +#define SAMPLES 600 extern void Dilatometer_Init(); // Initialise the dilatometer extern void Dilatometer_Cleanup(); // Cleanup -extern double Dilatometer_Read( int samples); // Read the dilatometer +extern bool Dilatometer_Read( double * value); // Read the Dilatometer diff --git a/server/sensors/Makefile b/server/sensors/Makefile index a412f7c..58a1fd8 100644 --- a/server/sensors/Makefile +++ b/server/sensors/Makefile @@ -1,9 +1,8 @@ # Makefile for server software CXX = gcc -FLAGS = -std=c99 -Wall -pedantic -g -I../ -#-I/usr/include/opencv -I/usr/include/opencv2/highgui For OpenCV +FLAGS = -std=c99 -Wall -pedantic -g -I../ -I/usr/include/opencv -I/usr/include/opencv2/highgui #For OpenCV LIB = -lpthread -OBJ = strain.o resource.o pressure.o +OBJ = strain.o resource.o pressure.o dilatometer.o HEADERS = $(wildcard *.h) RM = rm -f diff --git a/server/sensors/dilatometer.c b/server/sensors/dilatometer.c index 0aa8fbb..684a425 100644 --- a/server/sensors/dilatometer.c +++ b/server/sensors/dilatometer.c @@ -21,7 +21,6 @@ int kernel_size = 3; static CvMat * g_srcRGB = NULL; // Source Image static CvMat * g_srcGray = NULL; // Gray scale of source image static CvMat * g_edges = NULL; // Detected Edges -static CvMat * g_data = NULL; /** Pointers for capturing image **/ static CvCapture * g_capture = NULL; @@ -59,11 +58,11 @@ void Dilatometer_TestImage() } } - if (g_data == NULL) + if (g_srcGray == NULL) { - g_data = cvCreateMat(g_srcRGB->rows,g_srcRGB->cols,CV_8UC1); + g_srcGray = cvCreateMat(g_srcRGB->rows,g_srcRGB->cols,CV_8UC1); } - cvCvtColor(g_srcRGB,g_data,CV_RGB2GRAY); + cvCvtColor(g_srcRGB,g_srcGray,CV_RGB2GRAY); } /** @@ -71,18 +70,16 @@ void Dilatometer_TestImage() */ void Dilatometer_Cleanup() { - if (g_data != NULL) - cvReleaseMat(&g_data); if (g_capture != NULL) cvReleaseCapture(&g_capture); - if (g_srcRGB != NULL) - cvReleaseMat(&g_srcRGB); + if (frame != NULL) + cvReleaseImageHeader(&frame); + //if (g_srcRGB != NULL) + // cvReleaseMat(&g_srcRGB); // Causing run time error in cvReleaseMat if (g_srcGray != NULL) cvReleaseMat(&g_srcGray); if (g_edges != NULL) cvReleaseMat(&g_edges); - if (frame != NULL) - cvReleaseImageHeader(&frame); } /** @@ -92,12 +89,17 @@ static bool Dilatometer_GetImage() { bool result = true; // If more than one camera is connected, then input needs to be determined, however the camera ID may change after being unplugged - g_capture = cvCreateCameraCapture(0); - - //If cvCreateCameraCapture returns NULL there is an error with the camera if( g_capture == NULL) - result = false; - + { + g_capture = cvCreateCameraCapture(0); + //If cvCreateCameraCapture returns NULL there is an error with the camera + if( g_capture == NULL) + { + result = false; + return; + } + } + // Get the frame and convert it to CvMat frame = cvQueryFrame(g_capture); CvMat stub; @@ -105,18 +107,20 @@ static bool Dilatometer_GetImage() if( g_srcRGB == NULL) result = false; - + + // Convert the image to grayscale + if (g_srcGray == NULL) + { + g_srcGray = cvCreateMat(g_srcRGB->rows,g_srcRGB->cols,CV_8UC1); + } + + cvCvtColor(g_srcRGB,g_srcGray,CV_RGB2GRAY); + return result; } void CannyThreshold() { - - if (g_data == NULL) - { - g_data = cvCreateMat(g_srcGray->rows,g_srcGray->cols,CV_8UC1); - } - if ( g_edges == NULL) { g_edges = cvCreateMat(g_srcGray->rows,g_srcGray->cols,CV_8UC1); @@ -133,8 +137,8 @@ void CannyThreshold() //cvSaveImage("test_blurred.jpg",g_edges,0); //cvShowImage("display", g_edges); - //cvWaitKey(0); - + //cvWaitKey(0); + // Find the edges in the image cvCanny( g_edges, g_edges, lowThreshold, lowThreshold*ratio, kernel_size ); @@ -143,7 +147,7 @@ void CannyThreshold() //cvShowImage("display", g_edges); //cvWaitKey(0); - + } /** @@ -247,10 +251,10 @@ void Draw_Edge(double edge) } cvShowImage("display", g_edges); cvWaitKey(0); - cvSaveImage("test_edge_avg.jpg",g_edges,0); + //cvSaveImage("test_edge_avg.jpg",g_edges,0); } -/*// Test algorithm +/* // Test algorithm static void Dilatometer_GetImageTest( ) { //Generates Test image @@ -272,16 +276,15 @@ static void Dilatometer_GetImageTest( ) Dilatometer_Init(); cvNamedWindow( "display", CV_WINDOW_AUTOSIZE); -// cvShowImage("display", g_data); -// cvWaitKey(0); - double width; + //double width; double edge; - Dilatometer_Read(&edge,20000); + Dilatometer_GetEdge(&edge,20000); //For testing purposes, overlay the given average line over the image - Draw_Edge(edge); - + //Draw_Edge(edge); + cvDestroyWindow("display"); + Dilatometer_Cleanup(); }*/