Command line method for digitizing photos of whiteboards
About a month ago, after searching for an existing solution, I built a little script to take photo's of whiteboards and clean them up/make them into near perfect digital representations. Here's the script: #!/bin/bash convert $1 -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 $2 Example Input: Input 1: http://i.imgur.com/CTSIPwm.jpg Input 2: http://i.imgur.com/37GXrwo.jpg Example Output: Output 1: http://i.imgur.com/Qf3jkBW.png Output 2: http://i.imgur.com/oNueb0L.png The…
Command line method for digitizing photos of whiteboards launched on April 2, 2014 with 34 votes, #531 of 1,174 launches that month and more than 75% of that year's launches.
In plain words
This is a bash script that converts photographs of whiteboards into clean digital images using ImageMagick. It applies a series of image processing techniques including morphological operations, normalization, and level adjustments to enhance contrast and remove shadows. The tool is designed for anyone who needs to digitize whiteboard notes or sketches quickly from photos taken with a camera or phone.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
About a month ago, after searching for an existing solution, I built a little script to take photo's of whiteboards and clean them up/make them into near perfect digital representations. Here's the script: #!/bin/bash convert $1 -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel…
Does a similar job
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Digitizing photos of whiteboards using the command line2014 · gist.github.com · ▲186Whiteboard Picture Cleaner - Shell one-liner/script to clean up and beautify photos of whiteboards! - whiteboardCleaner.md
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