1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#include <stdlib.h>
#include <gtk/gtk.h>
#include <OpenCV/highgui.h>
#include <OpenCV/cv.h>
GtkWidget *window = NULL;
GtkImage *image_from_ocv(IplImage * img, int dst_w, int dst_h)
{
GtkImage *image = NULL;
GdkPixbuf *pix_src, *pix_dst;
pix_src = gdk_pixbuf_new_from_data((guchar*)img->imageData, GDK_COLORSPACE_RGB, FALSE, 8, img->width, img->height, img->widthStep, NULL, NULL);
pix_dst = gdk_pixbuf_scale_simple(pix_src, dst_w, dst_h, GDK_INTERP_BILINEAR);
image = (GtkImage*)gtk_image_new_from_pixbuf(pix_dst);
g_object_unref(pix_src);
g_object_unref(pix_dst);
return image;
}
void display_image(gpointer capture)
{
IplImage *ocv_image = NULL;
GtkImage *gtk_image = NULL;
if (!(ocv_image = cvQueryFrame(capture)))
exit(-1);
cvConvertImage(ocv_image, ocv_image, CV_CVTIMG_SWAP_RB);
gtk_image = image_from_ocv(ocv_image, window->allocation.width, window->allocation.height);
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(gtk_image));
gtk_widget_show(GTK_WIDGET(gtk_image));
}
int main(int argc, char **argv)
{
CvCapture *capture = NULL;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(window), 500, 500);
g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), NULL);
gtk_widget_show(window);
if (!(capture = cvCreateCameraCapture(0)))
return (EXIT_FAILURE);
g_timeout_add(100, display_image, capture);
gtk_main();
return EXIT_SUCCESS;
} |
