mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.0 KiB
115 lines
3.0 KiB
Image Blenders |
|
============== |
|
|
|
.. highlight:: cpp |
|
|
|
detail::Blender |
|
--------------- |
|
.. ocv:class:: detail::Blender |
|
|
|
Base class for all blenders. :: |
|
|
|
class CV_EXPORTS Blender |
|
{ |
|
public: |
|
virtual ~Blender() {} |
|
|
|
enum { NO, FEATHER, MULTI_BAND }; |
|
static Ptr<Blender> createDefault(int type, bool try_gpu = false); |
|
|
|
void prepare(const std::vector<Point> &corners, const std::vector<Size> &sizes); |
|
virtual void prepare(Rect dst_roi); |
|
virtual void feed(const Mat &img, const Mat &mask, Point tl); |
|
virtual void blend(Mat &dst, Mat &dst_mask); |
|
|
|
protected: |
|
Mat dst_, dst_mask_; |
|
Rect dst_roi_; |
|
}; |
|
|
|
detail::Blender::prepare |
|
------------------------ |
|
|
|
Prepares the blender for blending. |
|
|
|
.. ocv:function:: void detail::Blender::prepare(const std::vector<Point> &corners, const std::vector<Size> &sizes) |
|
|
|
:param corners: Source images top-left corners |
|
|
|
:param sizes: Source image sizes |
|
|
|
detail::Blender::feed |
|
--------------------- |
|
|
|
Processes the image. |
|
|
|
.. ocv:function:: void detail::Blender::feed(const Mat &img, const Mat &mask, Point tl) |
|
|
|
:param img: Source image |
|
|
|
:param mask: Source image mask |
|
|
|
:param tl: Source image top-left corners |
|
|
|
detail::Blender::blend |
|
---------------------- |
|
|
|
Blends and returns the final pano. |
|
|
|
.. ocv:function:: void detail::Blender::blend(Mat &dst, Mat &dst_mask) |
|
|
|
:param dst: Final pano |
|
|
|
:param dst_mask: Final pano mask |
|
|
|
detail::FeatherBlender |
|
---------------------- |
|
.. ocv:class:: detail::FeatherBlender |
|
|
|
Simple blender which mixes images at its borders. :: |
|
|
|
class CV_EXPORTS FeatherBlender : public Blender |
|
{ |
|
public: |
|
FeatherBlender(float sharpness = 0.02f) { setSharpness(sharpness); } |
|
|
|
float sharpness() const { return sharpness_; } |
|
void setSharpness(float val) { sharpness_ = val; } |
|
|
|
void prepare(Rect dst_roi); |
|
void feed(const Mat &img, const Mat &mask, Point tl); |
|
void blend(Mat &dst, Mat &dst_mask); |
|
|
|
// Creates weight maps for fixed set of source images by their masks and top-left corners. |
|
// Final image can be obtained by simple weighting of the source images. |
|
Rect createWeightMaps(const std::vector<Mat> &masks, const std::vector<Point> &corners, |
|
std::vector<Mat> &weight_maps); |
|
|
|
private: |
|
/* hidden */ |
|
}; |
|
|
|
.. seealso:: :ocv:class:`detail::Blender` |
|
|
|
detail::MultiBandBlender |
|
------------------------ |
|
.. ocv:class:: detail::MultiBandBlender |
|
|
|
Blender which uses multi-band blending algorithm (see [BA83]_). :: |
|
|
|
class CV_EXPORTS MultiBandBlender : public Blender |
|
{ |
|
public: |
|
MultiBandBlender(int try_gpu = false, int num_bands = 5); |
|
int numBands() const { return actual_num_bands_; } |
|
void setNumBands(int val) { actual_num_bands_ = val; } |
|
|
|
void prepare(Rect dst_roi); |
|
void feed(const Mat &img, const Mat &mask, Point tl); |
|
void blend(Mat &dst, Mat &dst_mask); |
|
|
|
private: |
|
/* hidden */ |
|
}; |
|
|
|
.. seealso:: :ocv:class:`detail::Blender`
|
|
|