diff options
| -rw-r--r-- | ext/opencv/gstcvsmooth.cpp | 87 | ||||
| -rw-r--r-- | ext/opencv/gstcvsmooth.h | 6 |
2 files changed, 88 insertions, 5 deletions
diff --git a/ext/opencv/gstcvsmooth.cpp b/ext/opencv/gstcvsmooth.cpp index c971ce666..baf0a1042 100644 --- a/ext/opencv/gstcvsmooth.cpp +++ b/ext/opencv/gstcvsmooth.cpp @@ -80,7 +80,11 @@ enum PROP_KERNELWIDTH, PROP_KERNELHEIGHT, PROP_COLORSIGMA, - PROP_SPATIALSIGMA + PROP_SPATIALSIGMA, + PROP_POSITION_X, + PROP_POSITION_Y, + PROP_WIDTH, + PROP_HEIGHT }; /* blur-no-scale only handle: gray 8bits -> gray 16bits @@ -118,6 +122,10 @@ gst_cv_smooth_type_get_type (void) #define DEFAULT_KERNELHEIGHT 3 #define DEFAULT_COLORSIGMA 0.0 #define DEFAULT_SPATIALSIGMA 0.0 +#define DEFAULT_POSITION_X 0 +#define DEFAULT_POSITION_Y 0 +#define DEFAULT_WIDTH G_MAXINT +#define DEFAULT_HEIGHT G_MAXINT G_DEFINE_TYPE (GstCvSmooth, gst_cv_smooth, GST_TYPE_OPENCV_VIDEO_FILTER); @@ -181,6 +189,26 @@ gst_cv_smooth_class_init (GstCvSmoothClass * klass) "Only used in bilateral type, means the spatial-sigma.", 0, G_MAXDOUBLE, DEFAULT_SPATIALSIGMA, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); + g_object_class_install_property (gobject_class, PROP_POSITION_X, + g_param_spec_int ("position-x", "starting x position for blur", + "Starting x position for blur (in pixels).", + 0, G_MAXINT, DEFAULT_POSITION_X, + (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); + g_object_class_install_property (gobject_class, PROP_POSITION_Y, + g_param_spec_int ("position-y", "starting y position for blur", + "Starting y position for blur (in pixels).", + 0, G_MAXINT, DEFAULT_POSITION_Y, + (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); + g_object_class_install_property (gobject_class, PROP_WIDTH, + g_param_spec_int ("width", "width of area to blur", + "Width of the area to blur (in pixels).", + 0, G_MAXINT, DEFAULT_WIDTH, + (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); + g_object_class_install_property (gobject_class, PROP_HEIGHT, + g_param_spec_int ("height", "height of area to blur", + "Height of the area to blur (in pixels).", + 0, G_MAXINT, DEFAULT_HEIGHT, + (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); gst_element_class_set_static_metadata (element_class, "cvsmooth", @@ -212,6 +240,10 @@ gst_cv_smooth_init (GstCvSmooth * filter) filter->kernelheight = DEFAULT_KERNELHEIGHT; filter->colorsigma = DEFAULT_COLORSIGMA; filter->spatialsigma = DEFAULT_SPATIALSIGMA; + filter->positionx = DEFAULT_POSITION_X; + filter->positiony = DEFAULT_POSITION_Y; + filter->width = DEFAULT_WIDTH; + filter->height = DEFAULT_HEIGHT; gst_opencv_video_filter_set_in_place (GST_OPENCV_VIDEO_FILTER_CAST (filter), TRUE); @@ -276,6 +308,18 @@ gst_cv_smooth_set_property (GObject * object, guint prop_id, case PROP_SPATIALSIGMA: filter->spatialsigma = g_value_get_double (value); break; + case PROP_POSITION_X: + filter->positionx = g_value_get_int (value); + break; + case PROP_POSITION_Y: + filter->positiony = g_value_get_int (value); + break; + case PROP_WIDTH: + filter->width = g_value_get_int (value); + break; + case PROP_HEIGHT: + filter->height = g_value_get_int (value); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; @@ -304,6 +348,18 @@ gst_cv_smooth_get_property (GObject * object, guint prop_id, case PROP_SPATIALSIGMA: g_value_set_double (value, filter->spatialsigma); break; + case PROP_POSITION_X: + g_value_set_int (value, filter->positionx); + break; + case PROP_POSITION_Y: + g_value_set_int (value, filter->positiony); + break; + case PROP_WIDTH: + g_value_set_int (value, filter->width); + break; + case PROP_HEIGHT: + g_value_set_int (value, filter->height); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; @@ -315,21 +371,42 @@ gst_cv_smooth_transform_ip (GstOpencvVideoFilter * base, GstBuffer * buf, IplImage * img) { GstCvSmooth *filter = GST_CV_SMOOTH (base); + Mat mat = cvarrToMat(img); + + if (filter->positionx != 0 || filter->positiony != 0 || + filter->width != G_MAXINT || filter->height != G_MAXINT) { + Size mat_size = mat.size(); + + /* if the effect would start outside the image, just skip it */ + if (filter->positionx >= mat_size.width + || filter->positiony >= mat_size.height) + return GST_FLOW_OK; + /* explicitly account for empty area */ + if (filter->width <= 0 || filter->height <= 0) + return GST_FLOW_OK; + + Rect mat_rect(filter->positionx, + filter->positiony, + MIN(filter->width, mat_size.width - filter->positionx), + MIN(filter->height, mat_size.height - filter->positiony)); + + mat = mat(mat_rect); + } switch (filter->type) { case CV_BLUR: - blur (cvarrToMat(img), cvarrToMat(img), Size (filter->kernelwidth, filter->kernelheight), + blur (mat, mat, Size (filter->kernelwidth, filter->kernelheight), Point (-1, -1)); break; case CV_GAUSSIAN: - GaussianBlur (cvarrToMat(img), cvarrToMat(img), Size (filter->kernelwidth, filter->kernelheight), + GaussianBlur (mat, mat, Size (filter->kernelwidth, filter->kernelheight), filter->colorsigma, filter->colorsigma); break; case CV_MEDIAN: - medianBlur (cvarrToMat(img), cvarrToMat(img), filter->kernelwidth); + medianBlur (mat, mat, filter->kernelwidth); break; case CV_BILATERAL: - bilateralFilter (cvarrToMat(img), cvarrToMat(img), -1, filter->colorsigma, 0.0); + bilateralFilter (mat, mat, -1, filter->colorsigma, 0.0); break; default: break; diff --git a/ext/opencv/gstcvsmooth.h b/ext/opencv/gstcvsmooth.h index 9735cca50..0e1f51bf4 100644 --- a/ext/opencv/gstcvsmooth.h +++ b/ext/opencv/gstcvsmooth.h @@ -73,6 +73,12 @@ struct _GstCvSmooth gint kernelheight; gdouble colorsigma; gdouble spatialsigma; + + /* coordinates to apply the effect to */ + gint positionx; + gint positiony; + gint width; + gint height; }; struct _GstCvSmoothClass |