This presentation is about the Image processing done using C++ in Open Computer Vision. You can find code here: https://github.com/Crazz-Zaac/Image_processing_in-OpenCV_C-

1. OOP
IMPLEMENTATION IN
OPENCV PROJECT
1
Presented by: Rabin BK
BSc.CSIT 3rd Semester

2.  Introduction
 Image capturing and saving
 Processing image
 References
2

3. 
Introduction
3

4.  The constructors available in VideoCapture class opens the video file and
initialize the VideoCapture cap( ) object for reading the video stream from the
specified file.
 The destructor of this class will de-allocate any associated memory and need
not be done explicitly.
 The class provides C++ an API for capturing video from cameras or for
reading video files and image sequences.
 The imwrite( ) saves the image that takes argument as, source image and
name.
Image capturing and saving
4

5.  The header file opencv2/highgui contains a member function
cvtColor ( InputArray src, OutputArray dst, int code, int dstCn = 0 )
 Arguments are passed to this function that processes the image and transforms
the image to what we want.
 We use this function through function resolution operator (::) and access the
member function defined in the library.
 Accessing the function helps us transform image to various other forms like
HSV(Hue Saturation Vector), Grayscale, etc.

Processing image
5

6. References
• https://docs.opencv.org/3.3.1/da/d6a/tutorial_trackbar.html
• https://docs.opencv.org/3.3.1/d2/de8/group__core__array.html#gafafb25
13349db3bcff51f54ee5592a19
• https://docs.opencv.org/3.0-beta/doc/user_guide/ug_intelperc.html
• http://answers.opencv.org/question/1/how-can-i-get-frames-from-my-
webcam/
• https://www.learnopencv.com/opencv-threshold-python-cpp/
6

7. Queries
7