IplImage* SimpleFilter::process( IplImage* frame )
{
IplImage* gray = 0;
gray = cvCreateImage( cvGetSize(frame), IPL_DEPTH_8U, 1 );
cvCvtColor( frame, gray, CV_RGB2GRAY );
cvThreshold( gray, gray, 135, 255, CV_THRESH_BINARY );
//cvLaplace( gray, gray, 1 );
/*
for( int i = 0; i < gray->width; ++i )
{
for( int j = 0; j < gray->height; ++j )
{
if( gray->imageData[ i + gray->widthStep * j] < 130 )
{
gray->imageData[ i + gray->widthStep * j] = 255;
}
else
{
gray->imageData[ i + gray->widthStep * j] = 0;
}
}
}
*/
//return gray;
//cvErode( gray, gray, NULL, 1 );
//if( gray->imageData[ i + gray->widthStep * j] == 0)
//cvLaplace( gray, gray, 1 );
//return gray;
//return gray;
CvMemStorage* storage = cvCreateMemStorage( 0 );
CvSeq* root = NULL;
cvFindContours( gray, storage, &root, sizeof( CvContour ), CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, cvPoint( 0, 0 ) );
QVector<CvSeq*> contours = collectContours( root );
QVector<Vertex> qrCodes = findQrCode( contours );
drawDebugInfo( frame, qrCodes, contours );
cvReleaseImage( &gray );
cvReleaseMemStorage( &storage );
return frame;
}
void SceneDisplayCallback(void) {
// Setup viewing transformation
glLoadIdentity();
glScalef(scale, scale, scale);
glTranslatef(translation[0], translation[1], 0.0);
// Set projection transformation
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0, (GLfloat) GLUTwindow_width / (GLfloat) GLUTwindow_height, 0.1, 100.0);
// Set camera transformation
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(translation[0], translation[1], translation[2]);
glScalef(scale, scale, scale);
glRotatef(rotation[0], 1.0, 0.0, 0.0);
glRotatef(rotation[1], 0.0, 1.0, 0.0);
glRotatef(rotation[2], 0.0, 0.0, 1.0);
glTranslatef(-center[0], -center[1], -center[2]);
// Clear window
glClearColor(0.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Set lights
glLightfv(GL_LIGHT0, GL_POSITION, difflight_position);
glLightfv(GL_LIGHT0, GL_DIFFUSE, difflight_color);
static GLfloat light1_position[] = {-3.0, -4.0, -5.0, 0.0};
glLightfv(GL_LIGHT1, GL_POSITION, light1_position);
// Draw stuff
drawScene();
drawDebugInfo();
processAnimation();
// Swap buffers
glutSwapBuffers();
}
void drawScene(void) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glLoadIdentity();
glTranslatef(-1, -1, 0);
glPushMatrix();
glScalef((GLfloat) 2 / MATRIX_SIZE, (GLfloat) 2 / MATRIX_SIZE, 0);
glColor3f(0.7f, 0.7f, 0.7f);
for (int i = 0; i < MATRIX_SIZE; i++) {
for (int j = 0; j < MATRIX_SIZE; j++) {
glPushMatrix();
glTranslatef((GLfloat) i, (GLfloat) j, 0);
drawSquareBorder();
glPopMatrix();
}
}
glPopMatrix();
/* making sure we have both points set */
if (linex1 * liney1 * linex2 * liney2 > 0) {
drawBresenhamLine();
drawLine();
}
drawLinePoints();
drawDebugInfo();
glFlush();
}
