potok/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2026-07-30 07:43:03 +04:00
Code Packages Releases Wiki Activity

Merge pull request #18652 from OrestChura:oc/morphologyEx

Browse Source 
[G-API]: morphologyEx() Standard Kernel Implementation

* cv::gapi::morphologyEx() kernel
 - implemented (without separate 3x3 version)
 - tests added: check only different operations, not kernels/borders

* Address comments: add `const` where needed

* Replaced fundamental tyeps -> enums where needed
 - added operator<< overload for cv::MorphTypes for tests output
This commit is contained in:
Orest Chura
2020-11-10 21:57:52 +03:00
committed by GitHub
parent e12adcdf08
commit 5f1ca33c6f
7 changed files with 126 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/gapi/include/opencv2/gapi/imgproc.hpp
+40 -1
View File
@@ -78,6 +78,14 @@ namespace imgproc {
}
};
G_TYPED_KERNEL(GMorphologyEx, <GMat(GMat,MorphTypes,Mat,Point,int,BorderTypes,Scalar)>,
"org.opencv.imgproc.filters.morphologyEx") {
static GMatDesc outMeta(const GMatDesc &in, MorphTypes, Mat, Point, int,
BorderTypes, Scalar) {
return in;
}
};
G_TYPED_KERNEL(GSobel, <GMat(GMat,int,int,int,int,double,double,int,Scalar)>, "org.opencv.imgproc.filters.sobel") {
static GMatDesc outMeta(GMatDesc in, int ddepth, int, int, int, double, double, int, Scalar) {
return in.withDepth(ddepth);
@@ -521,7 +529,7 @@ anchor is at the element center.
@param iterations number of times erosion is applied.
@param borderType pixel extrapolation method, see cv::BorderTypes
@param borderValue border value in case of a constant border
@sa dilate
@sa dilate, morphologyEx
*/
GAPI_EXPORTS GMat erode(const GMat& src, const Mat& kernel, const Point& anchor = Point(-1,-1), int iterations = 1,
int borderType = BORDER_CONSTANT,
@@ -596,6 +604,37 @@ GAPI_EXPORTS GMat dilate3x3(const GMat& src, int iterations = 1,
int borderType = BORDER_CONSTANT,
const Scalar& borderValue = morphologyDefaultBorderValue());
/** @brief Performs advanced morphological transformations.
The function can perform advanced morphological transformations using an erosion and dilation as
basic operations.
Any of the operations can be done in-place. In case of multi-channel images, each channel is
processed independently.
@note Function textual ID is "org.opencv.imgproc.filters.morphologyEx"
@param src Input image.
@param op Type of a morphological operation, see #MorphTypes
@param kernel Structuring element. It can be created using #getStructuringElement.
@param anchor Anchor position within the element. Both negative values mean that the anchor is at
the kernel center.
@param iterations Number of times erosion and dilation are applied.
@param borderType Pixel extrapolation method, see #BorderTypes. #BORDER_WRAP is not supported.
@param borderValue Border value in case of a constant border. The default value has a special
meaning.
@sa dilate, erode, getStructuringElement
@note The number of iterations is the number of times erosion or dilatation operation will be
applied. For instance, an opening operation (#MORPH_OPEN) with two iterations is equivalent to
apply successively: erode -> erode -> dilate -> dilate
(and not erode -> dilate -> erode -> dilate).
*/
GAPI_EXPORTS GMat morphologyEx(const GMat &src, const MorphTypes op, const Mat &kernel,
const Point &anchor = Point(-1,-1),
const int iterations = 1,
const BorderTypes borderType = BORDER_CONSTANT,
const Scalar &borderValue = morphologyDefaultBorderValue());
/** @brief Calculates the first, second, third, or mixed image derivatives using an extended Sobel operator.
In all cases except one, the \f$\texttt{ksize} \times \texttt{ksize}\f$ separable kernel is used to