whiteboardCleaner.md

Description

This simple function will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

    function whiteboard(){
        convert $1 -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1  "${@:2}"     ${1%.*}.png
    }

Usage

Add to your .zshrc or .bashrc, and call it with whiteboard <input image> <optional additional ImageMagick args> Outputs <input_filename>_cleaned.png

Here's an example:

whiteboard example1.jpg would output a cleaned version called example1_cleaned.png

Results

Here are some of the input images:

And here are the results: