emctoo

// create random Mat
int rows = 10, cols = 10;
cv::Mat m = cv::Mat::zeros(rows, cols, CV_32F);
cv::RNG(cv::getTickCount().fill(m, cv::RNG::UNIFORM, cv::Scalar(0), cv::Scalar(1));

// or you can use randu and randn. I prefer RNG, because I can set the seed.
randu(m, cv::Scalar(0), cv::Scalr(1));

// change one line
cv::mat row = m.row(0);

emctoo

#! /usr/bin/env python

import os, shutil

def remove_files_dirs(dir = '.'):
	''' remove all files and dirs in cwd '''
	print "Current work dir: " + os.getcwd()
	judge = raw_input("remove all?[Y/n]")
	if judge == 'n': 
		exit()

emctoo

module Main where 

import qualified Random

main :: IO ()
main = do
	a <- randInt 0 100
	putStrLn $ show a

-- generate random number between [lo, hi]

emctoo

# -*- coding = utf-8 -*-

import urllib, urllib2, sys
from BeautifulSoup import BeautifulSoup # for html

def fetch_url(link):
	''' '''
	f = urllib.urlopen(link)
	contents = f.read()	
	f.close()

emctoo

module Main where 

import Control.Monad.State

type IntState = State Int

inc :: IntState ()
-- inc = get >>= put . (+1)
inc = do 
	v <- get 

emctoo

-- from Real World Haskell, Chapter 9

module RecursiveContents (getRecursiveContents) where

import Control.Monad (forM)
import System.Directory (doesDirectoryExist, getDirectoryContents, getCurrentDirectory)
import System.FilePath ((</>))

getRecursiveContents :: FilePath -> IO [FilePath]
getRecursiveContents topdir = do

emctoo

require "open-uri"

require "net/http"
Net::HTTP.version_1_2

uri = URI.parse("http://192.168.1.1")

http = Net::HTTP.new(uri.host, uri.port)

while true 

emctoo

#! /usr/bin/env python

import cv2

if __name__ == "__main__": 
	''' '''	
	camera = cv2.VideoCapture(0)
	while True:
		# cv2.VideoCapture return a tuple, (Bool, Numpy.ndarray) 
		_, im = camera.read()

emctoo

from distutils.core import setup

import py2exe

setup(
	options = {"py2exe": {"bundle_files": 1, "includes": "numpy"}},
	console=["readCamera.py"],
	zipfile = None,
	)

emctoo

// compile by: g++ hello.cxx -shared -fPIC -o hello.so -I/usr/include/python2.7 -lboost_python
#include <string>
#include <boost/python.hpp>

using std::string;
using namespace boost::python;

string hello() { return "Hello, world!"; }

// add a argument