Contents

2-1 : image, video

• Image read, video read
• 영상, 비디오 읽기

OpenCV Lecture - 2. AboutMat (1/9) : image, video load and show

2-2 : Mat basic functions

• Mat copy, copyto, clone, range or region copy
• LUT, LookUpTable, apply Color Map
• Mat 에서 Mat으로 복사하는 여러가지 방법 소개

OpenCV Lecture - 2. AboutMat (2/9) : Mat Basic functions(copy, copyTo, clone, range and region copy)

💡 cvtColor, FastLUT, copy, copyTo, clone, range, region

2-3 : pixel RGB structure

• Image data structure
• Index computing the desired x, y position in a one-dimensional array(B/W and color case)
• 영상 데이터 구조에 대한 기본 개념 설명
• 영상에서 내가 원하는 위치의 픽셀값은 어떻게 가져오나?

OpenCV Lecture - 2. AboutMat (3/9) : pixel rgb structure in image

2-4 : pixel access

• How to access pixel data in Mat (using data, at operator)
• Mat 데이터 접근 방법 (data, at을 이용하는 방법)

OpenCV Lecture - 2. AboutMat (4/9) : pixel access using data, at operator

2-5 : pixel access

• How to access pixel data in Mat (using ptr, iterator operator)
• Assignment #1
• Mat 데이터 접근 방법 (data, at을 이용하는 방법)
• 과제 2-1 !!

OpenCV Lecture - 2. AboutMat (5/9) : pixel access using ptr, iterator operator

💡 ptr, iterator, data, at

2-6 : mat write

• Image, video write
• 영상, 비디오 쓰기(저장)

OpenCV Lecture - 2. AboutMat (6/9) : mat write to imge file

2-7 : linear algebra operation

• Matrix, Vector operation
• Matrix, Vector 연산 살펴보자
• inner product, cross product, vector, inverse, trace, determinant

OpenCV Lecture - 2. AboutMat (7/9) : linear algebra(inner/cross, inverse, trace, determinant)

2-8 : linear algebra operation

• Matrix, Solve non-homogeneous equations
• Matrix, eigenvalue, eigenvector
• Matrix, SVD(Sigular Value Decomposition)
• 비동차 방정식 해 구하기
• Matrix, 고유값, 고유벡터 구하기
• Matrix, SVD 구하기

OpenCV Lecture - 2. AboutMat (8/9) : linear algebra operation( solver, eigen value, vector, SVD)

2-9 : gpuMat example

• Understanding CPU and GPU differences
• Studying GpuMat, Practice with Coding
• Assignment 2-2, Bonus Challenge b-1 (difficult problem)
• CPU, GPU 차이 알기
• GpuMat 공부하기, 코딩으로 실습
• 과제 2-2!, 보너스 과제 b-1 (어려운 문제)

OpenCV Lecture - 2. AboutMat (9/9) : gpuMat example

Mat example source code

• Video play(비디오 재생): http://study.marearts.com/2013/09/opencv-video-file-load-and-display.html
• Key Code example : http://study.marearts.com/2016/11/keycode-and-ascii-code.html
• copyTo, Clone, ROI example : http://study.marearts.com/2016/06/opencv-mat-copyto-clone-roi-example-code.html
• Mat data access : http://study.marearts.com/2016/06/opencv-pixel-access-at-ptr-data.html

Linear Algebra Example source code

• inhomogeneous linear system solver example(비동차 방정식 솔버) : http://study.marearts.com/2016/12/inhomogeneous-linear-system-solver-in.html
• Eigen Vector, Eigen Value example(고유값 고유벡터 구하기) : http://study.marearts.com/2016/12/eigen-analysisof-symmetric-matrix-in.html
• singular value decomposition(SVD 특이값 분해) : http://study.marearts.com/2016/12/svd-singular-value-decomposition.html

GpuMat Example source code

• Speep Measurement(속도 측정) : http://study.marearts.com/2013/10/window-function-gettickcount-opencv.html
• GpuMat example 1 : http://study.marearts.com/2016/12/gpu-mat-cpu-mat-example-code-1.html
• GpuMat example 2: http://study.marearts.com/2016/12/gpu-mat-cpu-mat-example-2.html

🙇🏻 Thank you!

🎁 Source code, Material(pdf) and example images 👇
https://www.marearts.com/products/opencv-lecture-materials-1