static void
gst_zbar_init (GstZBar * zbar)
{
zbar->cache = DEFAULT_CACHE;
zbar->message = DEFAULT_MESSAGE;
zbar->scanner = zbar_image_scanner_create ();
}
static void
gst_skor_sink_init (GstSkorSink * filter)
{
filter->cache = DEFAULT_CACHE;
filter->message = DEFAULT_MESSAGE;
filter->attach_frame = DEFAULT_ATTACH_FRAME;
filter->data_consumer = NULL;
filter->scanner = zbar_image_scanner_create ();
}
const char* rho_barcode_barcode_recognize(const char* filename) {
void* img_buf = 0;
int img_width;
int img_height;
rho_platform_image_load_grayscale(filename, &img_buf, &img_width, &img_height);
if (img_buf != 0)
{
zbar_image_scanner_t* zbar_img_scanner = zbar_image_scanner_create();
zbar_image_t* zbar_img = zbar_image_create();
const zbar_symbol_t* zbar_symbol = 0;
zbar_image_scanner_set_config(zbar_img_scanner, ZBAR_NONE, ZBAR_CFG_ENABLE, 1);
zbar_image_set_format(zbar_img, zbar_fourcc('Y','8','0','0'));
zbar_image_set_size(zbar_img, img_width, img_height);
//zbar_image_set_data(zbar_img, img_buf, img_width * img_height, zbar_image_free_data);
zbar_image_set_data(zbar_img, img_buf, img_width * img_height, 0);
zbar_scan_image(zbar_img_scanner, zbar_img);
// get result
//zbar_symbol_set_t* zbar_symbols = zbar_image_get_symbols(zbar_img);
zbar_symbol = zbar_image_first_symbol(zbar_img);
if (zbar_symbol != 0) {
//printf(zbar_symbol_get_data(zbar_symbol));
//sprintf(strbuf, "IMG [%d x %d ]\nCODE = %s",img_width, img_height, zbar_symbol_get_data(zbar_symbol));
strcpy(strbuf, zbar_symbol_get_data(zbar_symbol));
}
else {
//sprintf(strbuf, "IMG [%d x %d ]\nCODE IS UNRECOGNIZED ",img_width, img_height);
strcpy(strbuf, "");
}
zbar_image_destroy(zbar_img);
zbar_image_scanner_destroy(zbar_img_scanner);
}
else {
//sprintf(strbuf, "NO IMG TO RECOGNIZE",img_width, img_height);
strcpy(strbuf, "");
}
if (img_buf) {
rho_platform_image_free(img_buf);
}
return strbuf;
}
static void qr_detect_init()
{
zscn = zbar_image_scanner_create();
zbar_image_scanner_set_config(zscn, 0, ZBAR_CFG_ENABLE, 1);
zbar_image_scanner_set_config(zscn, 0, ZBAR_CFG_X_DENSITY, 1);
zbar_image_scanner_set_config(zscn, 0, ZBAR_CFG_Y_DENSITY, 1);
zimg = zbar_image_create();
zbar_image_set_size(zimg, 640, 360);
zbar_image_set_format(zimg, zbar_fourcc('G','R','E','Y'));
}
JNIEXPORT jlong JNICALL
Java_net_sourceforge_zbar_ImageScanner_create (JNIEnv *env,
jobject obj)
{
zbar_image_scanner_t *zscn = zbar_image_scanner_create();
if(!zscn) {
throw_exc(env, "java/lang/OutOfMemoryError", NULL);
return(0);
}
stats.ImageScanner_create++;
return((intptr_t)zscn);
}
JNIEXPORT jstring JNICALL Java_com_acdd_qrcode_BarCode_decodeCrop(
JNIEnv *env,jclass clazz, jbyteArray img, jint width, jint height,
jint x, jint y, jint cropw, jint croph) {
zbar_image_scanner_t *scanner;
zbar_image_t *zimage;
zbar_image_t *zgrayimage;
jbyte *pixbuf;
jstring s = NULL;
zbar_set_verbosity(10); // XXX
pixbuf = (*env)->GetByteArrayElements(env, img, 0);
zimage = zbar_image_create();
if (zimage == NULL) {
(*env)->ReleaseByteArrayElements(env, img, pixbuf, 0);
return NULL;
}
zbar_image_set_format(zimage, *(unsigned long *) "Y800");
zbar_image_set_size(zimage, width, height);
zbar_image_set_data(zimage, pixbuf, (*env)->GetArrayLength(env, img),
zbar_image_free_data);
zbar_image_set_crop(zimage, x, y, cropw, croph);
zgrayimage = zbar_image_convert(zimage, *(unsigned long *) "Y800");
if (zgrayimage == NULL) {
(*env)->ReleaseByteArrayElements(env, img, pixbuf, 0);
return NULL;
}
zbar_image_destroy(zimage);
scanner = zbar_image_scanner_create();
zbar_image_scanner_set_config(scanner, 0, ZBAR_CFG_ENABLE, 1);
zbar_scan_image(scanner, zgrayimage);
const zbar_symbol_t *sym;
sym = zbar_image_first_symbol(zgrayimage);
if (sym != NULL) {
const char *sym_data;
sym_data = zbar_symbol_get_data(sym);
__android_log_print(ANDROID_LOG_DEBUG, "zbar", "url: %s", sym_data);
s = (*env)->NewStringUTF(env, sym_data);
}
(*env)->ReleaseByteArrayElements(env, img, pixbuf, 0);
return s;
}
JNIEXPORT jstring JNICALL Java_trikita_obsqr_Zbar_process
(JNIEnv *env, jobject obj, jint w, jint h, jbyteArray img) {
zbar_image_scanner_t *scanner;
zbar_image_t *zimage;
zbar_image_t *zgrayimage;
jbyte *pixbuf;
jstring s = NULL;
zbar_set_verbosity(10); // XXX
pixbuf = (*env)->GetByteArrayElements(env, img, 0);
zimage = zbar_image_create();
if (zimage == NULL) {
(*env)->ReleaseByteArrayElements(env, img, pixbuf, 0);
return NULL;
}
zbar_image_set_format(zimage, *(unsigned long *) "Y800");
zbar_image_set_size(zimage, w, h);
zbar_image_set_data(zimage, pixbuf, (*env)->GetArrayLength(env, img),
zbar_image_free_data);
zgrayimage = zbar_image_convert(zimage, *(unsigned long *) "Y800");
if (zgrayimage == NULL) {
(*env)->ReleaseByteArrayElements(env, img, pixbuf, 0);
return NULL;
}
zbar_image_destroy(zimage);
scanner = zbar_image_scanner_create();
zbar_image_scanner_set_config(scanner, 0, ZBAR_CFG_ENABLE, 1);
zbar_scan_image(scanner, zgrayimage);
const zbar_symbol_t *sym;
sym = zbar_image_first_symbol(zgrayimage);
if (sym != NULL) {
const char *sym_data;
sym_data = zbar_symbol_get_data(sym);
__android_log_print(ANDROID_LOG_DEBUG, "zbar", "url: %s", sym_data);
s = (*env)->NewStringUTF(env, sym_data);
}
(*env)->ReleaseByteArrayElements(env, img, pixbuf, 0);
return s;
}
zbar_processor_t *zbar_processor_create (int threaded)
{
zbar_processor_t *proc = calloc(1, sizeof(zbar_processor_t));
if(!proc)
return(NULL);
err_init(&proc->err, ZBAR_MOD_PROCESSOR);
proc->scanner = zbar_image_scanner_create();
if(!proc->scanner) {
free(proc);
return(NULL);
}
proc->threaded = !_zbar_mutex_init(&proc->mutex) && threaded;
_zbar_processor_init(proc);
return(proc);
}
int main (int argc, char **argv)
{
if(argc < 2) return(1);
/* create a reader */
scanner = zbar_image_scanner_create();
/* configure the reader */
zbar_image_scanner_set_config(scanner, 0, ZBAR_CFG_ENABLE, 1);
/* obtain image data */
int width = 1920, height = 1080;
void *raw = NULL;
get_yuv_data(argv[1], &width, &height, &raw);
/* wrap image data */
zbar_image_t *image = zbar_image_create();
zbar_image_set_format(image, *(int*)"Y800");
zbar_image_set_size(image, width, height);
zbar_image_set_data(image, raw, width * height, zbar_image_free_data);
/* scan the image for barcodes */
int n = zbar_scan_image(scanner, image);
if(0==n||-1==n)
{
printf("no symbols were found or -1 if an error occurs\n");
}
/* extract results */
const zbar_symbol_t *symbol = zbar_image_first_symbol(image);
for(; symbol; symbol = zbar_symbol_next(symbol)) {
/* do something useful with results */
zbar_symbol_type_t typ = zbar_symbol_get_type(symbol);
const char *data = zbar_symbol_get_data(symbol);
printf("decoded %s symbol \"%s\"\n",
zbar_get_symbol_name(typ), data);
}
/* clean up */
zbar_image_destroy(image);
zbar_image_scanner_destroy(scanner);
return(0);
}
void process_QR(IplImage* img, QR_Data * data, IplImage* outimg)
{
// Data extracted from the ZBar Image
int width = 0;
int height = 0;
void *raw = NULL;
// Data from the QR code and its position/angle
int qr_length = 0; // The length of the code in pixels
double qr_distance = 0; // How far the qr code is (altitude)
double qr_angle = 0; // Angle of the code from the right x-axis
double qr_angle_deg = 0;// Same as above but in degrees
double dis2Mid = 0; // Distance from the camera middle to code
double theta1 = 0; // the arctan of the y' and x' axes
double theta2 = 0; // the angle between the two axes
double theta2_deg = 0; // theta2 in radians
double x_d = 0;
double y_d = 0;
double x_ab = 0;
double y_ab = 0;
int qr_x, qr_y; // The data from the QR Code
char text[80];
// ZBar Scanner for C
zbar_image_scanner_t* scanner = zbar_image_scanner_create();
// configure the scanner
zbar_image_scanner_set_config(scanner, 0, ZBAR_CFG_ENABLE, 1);
// Extract data from the image
width = img->width;
height = img->height;
raw = (void *) img->imageData;
// Wrap the image data
zbar_image_t *image = zbar_image_create();
zbar_image_set_format(image, *(int*)"Y800");
zbar_image_set_size(image, width, height);
zbar_image_set_data(image, raw, width * height, zbar_image_free_data);
// Scan the image for QR
int n = zbar_scan_image(scanner, image);
/* extract results */
const zbar_symbol_t *symbol = zbar_image_first_symbol(image);
for(; symbol; symbol = zbar_symbol_next(symbol)) {
// Cycle through each symbol found
zbar_symbol_type_t typ = zbar_symbol_get_type(symbol);
const char *data = zbar_symbol_get_data(symbol);
printf("decoded %s symbol \"%s\"\n",
zbar_get_symbol_name(typ), data);
sscanf(data, "%d %d", &qr_x, &qr_y);
printf("QR_X: %i\n", qr_x);
printf("QR_Y: %i\n", qr_y);
// Find the angle between the lines
CvMemStorage* storage = cvCreateMemStorage(0);
CvSeq* ptseq = cvCreateSeq(CV_SEQ_KIND_GENERIC|CV_32SC2,
sizeof(CvContour), sizeof(CvPoint), storage);
CvPoint pts[4];
int i = 0;
for (i = 0; i < 4; ++i) {
CvPoint point = cvPoint(zbar_symbol_get_loc_x(symbol,i),
zbar_symbol_get_loc_y(symbol,i));
cvSeqPush(ptseq, &point);
pts[i] = point;
}
CvBox2D rect = cvMinAreaRect2(ptseq, 0);
// Draw the outline rectangle
for (i = 0; i < 4; ++i) {
cvLine(outimg, pts[i], pts[(i+1)%4],
CV_RGB(0, 0, 255), 5, 8, 0);
}
// Get the distance from the code to the camera
qr_length = sqrt(abs(pts[0].x * pts[0].x - pts[1].x * pts[1].x) +
abs(pts[0].y * pts[0].y - pts[1].y * pts[1].y));
qr_distance = qr_length * DISTANCE_M + DISTANCE_B;
printf("Length: %i\n", qr_length);
printf("Distance: %f\n", qr_distance);
// Find the relative location
// Get the angle of the circled rectangle
qr_angle = -rect.angle;
if (pts[0].x > pts[3].x && pts[0].y > pts[3].y) qr_angle += 90;
else if (pts[0].x > pts[3].x && pts[0].y < pts[3].y) qr_angle += 180;
else if (pts[0].x < pts[3].x && pts[0].y < pts[3].y) qr_angle += 270;
else if (pts[0].x == pts[1].x && pts[0].y == pts[3].y) {
if (pts[0].x < pts[3].x && pts[0].y < pts[1].y)
qr_angle = 0;
else qr_angle = 180;
}
else if (pts[0].x == pts[3].x && pts[0].y == pts[1].y) {
if (pts[0].x < pts[1].x && pts[0].y > pts[3].y)
qr_angle = 90;
else qr_angle = 270;
}
printf("Angle: %f\n", qr_angle);
//Draw a line on the angle
qr_angle = qr_angle * 3.1415 / 180;
CvPoint mid = cvPoint((pts[0].x + pts[2].x) / 2,
(pts[0].y + pts[2].y)/2);
CvPoint p2 = cvPoint(mid.x + 25*cos(qr_angle),
mid.y - 25*sin(qr_angle));
cvLine(outimg,mid, p2, CV_RGB(0,255,0),5,8,0);
// Get the relative location based on the data of the QR code
// QR format: x y
// x and y are seperated by a single space
// Check if the QR is in the right format
cvLine(outimg,mid, cvPoint(MID_X,MID_Y), CV_RGB(255,0,0),5,8,0);
// Relative position (in pixel)
dis2Mid = sqrt((mid.x - MID_X) * (mid.x - MID_X) +
(mid.y - MID_Y) * (mid.y - MID_Y));
printf("Distance to Quad: %f\n", dis2Mid);
theta1 = atan2(MID_Y - mid.y, MID_X - mid.x) * 180 / MATH_PI;
qr_angle_deg = qr_angle * 180 / MATH_PI;
theta2_deg = 90 - theta1 - qr_angle_deg;
theta2 = theta2_deg * MATH_PI / 180;
x_d = dis2Mid * sin(theta2);
y_d = dis2Mid * cos(theta2);
// Display message onto the image
CvFont font;
cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, 0.5, 0.5, 0, 1, 8);
sprintf(text, "Attitude: %f", qr_distance);
cvPutText(outimg, text, cvPoint(30,30),
&font, cvScalar(255, 255, 255, 0));
sprintf(text, "Angle: %f", qr_angle_deg);
cvPutText(outimg, text, cvPoint(30,50),
&font, cvScalar(255, 255, 255, 0));
x_ab = x_d + qr_x;
y_ab = y_d + qr_y;
sprintf(text, "Abs. Pos: (%f, %f)", x_ab, y_ab);
cvPutText(outimg, text, cvPoint(30,70),
&font, cvScalar(255, 255, 255, 0));
}
}
int c_zbar(IMG(x), int*m, TBarcode* result) {
//printf("hello\n");
/* create a reader */
zbar_image_scanner_t * scanner = zbar_image_scanner_create();
/* configure the reader */
zbar_image_scanner_set_config(scanner, 0, ZBAR_CFG_ENABLE, 1);
/* obtain image data */
int width = xsc2+1, height = xsr2+1;
if (xsc1!=0 || xsr1!=0 || xsstep != width) {
printf("c1=%d c2=%d r1=%d r2=%d step=%d\n",xsc1,xsc2,xsr1,xsr2,xsstep);
return 1;
}
void *raw = xpSrc;
//get_data(argv[1], &width, &height, &raw);
/* wrap image data */
zbar_image_t *image = zbar_image_create();
zbar_image_set_format(image, *(int*)"Y800");
zbar_image_set_size(image, width, height);
zbar_image_set_data(image, raw, width * height, NULL);
//printf("after set\n");
/* scan the image for barcodes */
int n = zbar_scan_image(scanner, image);
//printf("scan_image code: %d\n",n);
/* extract results */
int k = 0;
const zbar_symbol_t *symbol = zbar_image_first_symbol(image);
for(; symbol; symbol = zbar_symbol_next(symbol)) {
/* do something useful with results */
zbar_symbol_type_t typ = zbar_symbol_get_type(symbol);
result[k].symbol_type = zbar_get_symbol_name(typ);
const char *data = zbar_symbol_get_data(symbol);
result[k].symbol_value = data;
// printf("decoded %s symbol \"%s\"\n",zbar_get_symbol_name(typ), data);
int np = zbar_symbol_get_loc_size(symbol);
//printf("np=%d\n",np);
int j,x,y,r1,c1,r2,c2;
c1 = c2 = zbar_symbol_get_loc_x(symbol,0);
r1 = r2 = zbar_symbol_get_loc_y(symbol,0);
for (j=1; j<np; j++) {
x = zbar_symbol_get_loc_x(symbol,j);
y = zbar_symbol_get_loc_y(symbol,j);
if (y<r1) r1 = y;
if (y>r2) r2 = y;
if (x<c1) c1 = x;
if (x>c2) c2 = x;
//printf("j=%d\n",j);
}
result[k].bbr1 = r1;
result[k].bbr2 = r2;
result[k].bbc1 = c1;
result[k].bbc2 = c2;
k++;
if(k>=50) break;
}
/* clean up */
zbar_image_destroy(image);
*m = k;
return n;
}
static void *zbar_gtk_processing_thread (void *arg)
{
ZBarGtk *self = ZBAR_GTK(arg);
if(!self->_private)
return(NULL);
ZBarGtkPrivate *zbar = ZBAR_GTK_PRIVATE(self->_private);
g_object_ref(zbar);
g_assert(zbar->queue);
g_async_queue_ref(zbar->queue);
zbar->scanner = zbar_image_scanner_create();
g_assert(zbar->scanner);
/* thread side enabled state */
gboolean video_enabled = FALSE;
GValue *msg = NULL;
while(TRUE) {
if(!msg)
msg = g_async_queue_pop(zbar->queue);
g_assert(G_IS_VALUE(msg));
GType type = G_VALUE_TYPE(msg);
if(type == G_TYPE_INT) {
/* video state change */
int state = g_value_get_int(msg);
if(state < 0) {
/* terminate processing thread */
g_value_unset(msg);
g_free(msg);
msg = NULL;
break;
}
g_assert(state >= 0 && state <= 1);
video_enabled = (state != 0);
}
else if(type == G_TYPE_STRING) {
/* open new video device */
const char *video_device = g_value_get_string(msg);
video_enabled = zbar_gtk_video_open(self, video_device);
}
else if(type == GDK_TYPE_PIXBUF) {
/* scan provided image and broadcast results */
zbar_image_t *image = zbar_image_create();
GdkPixbuf *pixbuf = GDK_PIXBUF(g_value_dup_object(msg));
if(zbar_gtk_image_from_pixbuf(image, pixbuf))
zbar_gtk_process_image(self, image);
else
g_object_unref(pixbuf);
zbar_image_destroy(image);
}
else {
gchar *dbg = g_strdup_value_contents(msg);
g_warning("unknown message type (%x) passed to thread: %s\n",
(unsigned)type, dbg);
g_free(dbg);
}
g_value_unset(msg);
g_free(msg);
msg = NULL;
if(video_enabled) {
/* release reference to any previous pixbuf */
zbar_window_draw(zbar->window, NULL);
if(zbar_video_enable(zbar->video, 1)) {
zbar_video_error_spew(zbar->video, 0);
video_enabled = FALSE;
continue;
}
zbar_image_scanner_enable_cache(zbar->scanner, 1);
while(video_enabled &&
!(msg = g_async_queue_try_pop(zbar->queue))) {
zbar_image_t *image = zbar_video_next_image(zbar->video);
if(zbar_gtk_process_image(self, image) < 0)
video_enabled = FALSE;
if(image)
zbar_image_destroy(image);
}
zbar_image_scanner_enable_cache(zbar->scanner, 0);
if(zbar_video_enable(zbar->video, 0)) {
zbar_video_error_spew(zbar->video, 0);
video_enabled = FALSE;
}
/* release video image and revert to logo */
if(zbar->window) {
zbar_window_draw(zbar->window, NULL);
gtk_widget_queue_draw(GTK_WIDGET(self));
}
if(!video_enabled)
/* must have been an error while streaming */
zbar_gtk_video_open(self, NULL);
}
}
if(zbar->window)
zbar_window_draw(zbar->window, NULL);
g_object_unref(zbar);
return(NULL);
}
