Create a nice ‘where is Charlie/Waldo/Wally’ poster with removing the background automatically in windows
Tools used
Recent Posts
How to create a matrix of image automatically with ImageMagick even from different sizes
Goal is to create a matrix of image to have an overview or whatever you want with.
How to fix git error ‘this exceeds GitHub’s file size limit of 100.00 MB’ or ‘this is larger than GitHub’s recommended maximum file size of 50.00 MB’
I will not explain the all detail why and how because I just do not know. I just post what fixed this on my case:
Real time animation with krita
I wanted to create an animation with krita which is pretty easy AND add some real time animation where I am drawing. I did not find a way to do it with krita...
Use Lua script in windows
How to use lua in windows:
How to find the longest common string in a vector in R
To get the longest common string on a vector of strings in R, I adapted the answer of @Rich Scriven to my purpose. The goal is to find in a vector the longes...
Extract the first letter of each word in string via R
```r library(data.table)
Export coordinates to gpx via R
```r library(data.table) library(rgdal) library(ggmap)
Create a simple world map with the borders of countries with R
```r library(ggmap) library(data.table) library(ggplot2)
Replace the Nth occurrence of a string via regex (and in R) or all the occurences after the Nth occurence
Via R using Regex expression (meaning almost any languages) you can replace the Nth occurrence of a character in a string (source). Here a code example that ...
Convert csv to gpx via GPSBabel
I was getting some coordinate on the web and wanted to create gpx waypoints in order to import this on my Handy via Locus.
Extract text from image or pdf
How can you effectively extract text from a pdf or an image ? commmonly called OCR (optical character recognition). I found 2 extremly powerfull tools based ...
How to normalize audio easily from a video via ffmpeg and ffmpeg-normalize
I was actually looking to normalize the audio from a video and realized that this is not so easy. By going through internet I found a pretty nice solution : ...
Create a pdf from a batch of photos, batch convertion jpg to pdf, scan a book with a camera
This technique may be used for special occasion but I do not recommend to do it for scanning an entire book.
Batch file using FFmpeg to reduce video quality depending on user choice
I use often FFmpeg with batch script that I did. I usually create videos from GoPro footages in few minutes without having to pass through any software. This...
Export Samsung Notes to txt, jpg, Google Keep
If you buy a new Handy which is not a Samsung and you wanna restore your notes on this one using Google Keep or either export them all in txt files and get t...
Use the function list menu with Notepad++ with markdown
I always wanted to have a way to go rapidly through the structure of long markdown files in Notepad++. Because this is a great little, simple, fast software...
A static comment system for Jekyll using Github Issues API
I looked few times for such solution and found a pretty satisfying one and easy to install on a github page. All the comment will stay on your website and yo...
Add a context menu to reduce quality of a scanned pdf (or pdf)
I have already done 2 posts for adding a context menu for convertir jpeg to pdf and word to pdf. Right now I found something interesting to reduce the qualit...
Update join data.table: How to update variable of a data.table base on another data.table
Goal is to update values from 1 or several variables from a data.table (X) with values of variables from another data.table (Y).