Skip to content

Instantly share code, notes, and snippets.

View renlight10's full-sized avatar

renlight10

View GitHub Profile
@dannguyen
dannguyen / face-boxer-usage.md
Last active July 29, 2023 22:05
A face-detection script in Python

This face-boxer.py script is more-or-less the same code that you'll find in the OpenCV tutorial: Face Detection using Haar Cascades. For another variation, with more explanation, check out RealPython's tutorial.

Usage

The face-boxer.py script is designed to be run from the command-line. It has two required arugments:

  1. The path to a XML file containing a Haar-cascade of visual features. In this example, it will be the features that make up a face.
  2. The path to an image file that you want to perform face-detection on. You can pass in more than one image file as space-separated arguments.
@sourceperl
sourceperl / th_pinger.py
Last active August 12, 2025 09:58
Python script for do multi-threaded ping
#!/usr/bin/env python
# ping a list of host with threads for increase speed
# use standard linux /bin/ping utility
from threading import Thread
import subprocess
try:
import queue
except ImportError:
import Queue as queue
@jdiscar
jdiscar / gist:9144764
Last active November 11, 2020 06:07
RGB Value to Nearest Color Name (Python)
"""
Original Author Ernesto P. Adorio, Ph.D
Original Source: http://my-other-life-as-programmer.blogspot.com/2012/02/python-finding-nearest-matching-color.html
Modifed By: JDiscar
This class maps an RGB value to the nearest color name it can find. Code is modified to include
ImageMagick names and WebColor names.
1. Modify the minimization criterion to use least sum of squares of the differences.
2. Provide error checking for input R, G, B values to be within the interval [0, 255].
@burtlo
burtlo / sample_entry.markdown
Created October 16, 2013 21:13
Developers are using Octopress to deliver information to other developers. It is important that we consider those other developers when creating our content and how that content is displayed. Defining a custom liquid tag helps you represent your content in a way that is easy to understand. The following gist contains all the content you need to …

To get started with Rails we need to install the gem. From the terminal type:

{% terminal %}
$ gem install rails
Fetching: i18n-0.6.1.gem (100%)
Fetching: multi_json-1.3.6.gem (100%)
Fetching: activesupport-3.2.8.gem (100%)
...
{% endterminal %}
@mganss
mganss / SkinScanner.md
Last active July 15, 2019 08:14
Simple human skin color detection

C# port of a simple skin color detection algorithm. Python original by SpliFF here. See also this Stack Overflow question.

Produces a lot of false positives but is great for quickly filtering a large set of unknown images.

@aras-p
aras-p / preprocessor_fun.h
Last active March 20, 2026 15:26
Things to commit just before leaving your job
// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,
@psdtohtml5
psdtohtml5 / gist:6090113
Last active September 5, 2021 16:09
PHP : Auto expire session / Auto logout after specific time
<?php
//on pageload
session_start();
$idletime=60;//after 60 seconds the user gets logged out
if (time()-$_SESSION['timestamp']>$idletime){
session_destroy();
session_unset();
}else{
@dmy3k
dmy3k / imsim.py
Last active February 1, 2017 10:11
Image similarity detection
'''
Bunch of functions to do basic image similarity detection
See:
http://www.gossamer-threads.com/lists/python/python/901273
http://sourceforge.net/projects/imsim/?source=dlp
'''
from PIL import Image
from PIL import ImageStat
@christianroman
christianroman / test.py
Created May 30, 2013 16:02
Bypass Captcha using 10 lines of code with Python, OpenCV & Tesseract OCR engine
import cv2.cv as cv
import tesseract
gray = cv.LoadImage('captcha.jpeg', cv.CV_LOAD_IMAGE_GRAYSCALE)
cv.Threshold(gray, gray, 231, 255, cv.CV_THRESH_BINARY)
api = tesseract.TessBaseAPI()
api.Init(".","eng",tesseract.OEM_DEFAULT)
api.SetVariable("tessedit_char_whitelist", "0123456789abcdefghijklmnopqrstuvwxyz")
api.SetPageSegMode(tesseract.PSM_SINGLE_WORD)
tesseract.SetCvImage(gray,api)
print api.GetUTF8Text()
@mvsantos
mvsantos / remove-image-background.sh
Created May 10, 2013 14:16
Remove/strip image background - rough mode - requires ImageMagick
# Requires ImageMagick
# Converting the source from JPEG to PNG - if necessary
convert my_src_image.jpg my_src_image.png
# Option A
# - Requires a temporary intermediate file
# - Drill more than 10 might result in poor results