Data stored in OpenCV cv::Mats are not always continuous in memory, which can be verified via API Mat::isContinuous(). Instead, it follows the following rules:

1. Matrices created by imread(), clone(), or a constructor will always be continuous.
2. The only time a matrix will not be continuous is when it borrows data from an existing matrix (i.e. created out of an ROI of a big mat), with the exception that the data borrowed is continuous in the big matrix, including
   • borrow a single row;
   • borrow multiple rows but with full original width.

I recently moved my blog here using Hexo instead of previous Jekyll, though the old version is still available. Hexo is a fast, simple & powerful blog framework. Compared with Jekyll, Hexo is more flexible in terms of setup, post writing via Markdown, tags, themes, content searching, 3rd-part plugin support, etc.

This post summarizes the setup steps of Hexo in Windows 10, which I hope will somehow help those who want to blog using Hexo as well.

Setup

Install Windows Subsystem for Linux (WSL)

1. Settings -> Turn Windows features on or off -> check on Windows Subsystem for Linux -> Reboot.

2. If has error Windows Subsystem for Linux has no installed distributions, run in cmd

   1	lxrun /install

   Note: in Windows 10 1803 and later, lxrun is deprecated, will need to install it via Windows App Store following the link showing on the screen.

In VS, memory leaks can be detected by using C Run-Time (CRT) libraries [1]. A typical example of enabling this feature can be like:

We often encounter problems of showing Chinese bookmarks during using Latex, take the following MWE, i.e. main.tex as an example:

CMakeLists.txt for Lib project:

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# add path of headers to include_directories
include_directories(include)

# STATIC for static lib, and SHARED for dynamic
FILE(GLOB SOURCES
	src/*.h
    src/*.cpp
)
add_library(mylib STATIC ${SOURCES})

# link libs, list all of them
target_link_libraries(mylib
    -lib-name-.lib
)

C

• everything is pass-by-value
• cannot declare functions inside struct

There are two ways in VC++ to call MATLAB:

1. distribute MATLAB code into MATLAB independent C++ shared library. Refer to the previous blog for details.

2. call MATLAB directly in VC++.

This blog will focus on the second approach (also the easier one).

Install

1. Install Anaconda. (e.g. by default in C:\Users\tommyhu\anaconda3)
2. Add the following paths to Path:
   • C:\Users\tommyhu\anaconda3
   • C:\Users\tommyhu\anaconda3\Scripts

Implementation:

Implementation of 10 sorting algorithms can be found here, including

1. SelectionSort
2. InsertSort
3. ShellSort
4. BubbleSort
5. HeapSort
6. QuickSort
7. MergeSort
8. CountingSort
9. RadixSort
10. BucketSort