njanirudh

#----- XOR Patterns --------
# https://www.reddit.com/r/math/comments/bpfq1w/weird_prime_pattern/
# https://medium.com/biffures/part-2-the-beauty-of-bitwise-and-or-cdf1d8d87891

import numpy as np
import cv2 as cv2

# Width and height of the image
width = 1000
height = 1000

njanirudh

import cv2
import glob
import os
import random
import numpy as np


def create_composite_image(_fg_image , _bg_image):
    """
    Creates composite images from a given set of foreground and background images

njanirudh

# The below command will copy all the libraries that are required by an executable
# It runs 'ldd' command on the executable name.
# Replace the <file> with your exec path and <path> with the folder where the libs should be copied.

ldd <file> | grep "=> /" | awk '{print $3}' | xargs -I '{}' cp -v '{}' <path>

# The below command changes the rpath for the exectable to the required path of the copied libraries.

chrpath -r '$ORIGIN/<path>' <file> 

njanirudh

#include <stdio.h>
#include <dirent.h>
#include <sys/types.h>

static void list_dir(const char *path)
{
    struct dirent *entry;
    DIR *dir = opendir(path);
    if (dir == NULL) {
        return;

njanirudh

##Using Android OpenCV-Java and Native C++

Create a new android Project with Include C++ Support.
Download the android sdk from http://opencv.org/releases.html.
Import OpenCV4Android as a module dependency of your app. In your Android Studio Project, select File -> New -> Import Module.. . Then in the New Module dialog, navigate to the path of OpenCV4Android Java SDK. For instance path is 
<Path to Downloads>/opencv-android-sdk/sdk/java .
Go to File -> Project Structure  .Select app -> dependencies . Press + and select Module Dependency.  Press Ok.
Now we need to add native JNI libraries in our project. These libraries should be added in jniLibs directory. Create a new jniLibs directory in app-> src -> main.
 
Open the extracted OpenCV SDK directory. Switch to  “opencv-android-sdk/sdk/native/libs” directory.

njanirudh

Tested on :-
	
ARToolKit5-bin-5.3.2r1-Linux-x86_64
Linux 16.04

Installation Steps :- 

1. Download and extract the AR-Toolkit from the Official website .(https://archive.artoolkit.org/download-artoolkit-sdk)
2. Go to <ARToolKit5 Root Directory>/bin and run  ./nftSimple 
3. You might get an error regarding missing 'libglut.so'

njanirudh

//Function To sort the points
inline void sortPoints(std::vector < cv::Point > &pointList)
{
    std::sort(pointList.begin(),pointList.end(),Local());
}

//Comparator funtion for sorting the points
struct Local {

    bool operator () (const cv::Point & p1, const cv::Point & p2)