Voronoi Stipple Approach to Mosaics.

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12516

See attached for quick an dirty tutorial.

ref: http://www.fontplay.com/freephotos/2nd5 ... 04-009.jpg

Additional utility required: Voronoi Stippler

Raw Result:

Attachment:

fpfree112604-009.png [ 466.77 KiB | Viewed 18037 times ]

Added some Morphology and Local Orientation steps along with grout to add dimension:

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

Thank you Lyle for this tutorial.
This will come in handy for my archviz 3d project. Will replace some of the "oil paintings"
I've made with realistic looking mosaics. :bigthup

Odinbc · **Posted:** Fri Dec 26, 2014 1:49 am **(#3)**

Cheers Lyle!

dinasset · **Posted:** Fri Dec 26, 2014 2:00 am **(#4)**

thanks, Lyle!

Marcello · **Joined:** Mar 10, 2014 **Posts:** 845

Thank you!

MosaiCat

MareroQ · **Posted:** Sat Dec 27, 2014 1:43 am **(#6)**

Thank you Lyle for this tutorial.
Only for convenience - launches Voronoi with GIMP menu.

VoronoiShwith.py

Code: Select all

#!/usr/bin/env python 
# -*- coding: utf-8 -*-

# Voronoi: http://www.saliences.com/projects/npr/stippling/index.html
# Only for convenience - launches Voronoi with GIMP menu: http://gimpchat.com/viewtopic.php?f=10&t=11690
# Example code by Lylejk: voronoi.exe -s 8000 -t .2 -n wilber.png wilber.svg 
# The idea taken from Rob Antonishen - Shellout: http://registry.gimp.org/node/24977

'''
License:
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
The GNU Public License is available at
http://www.gnu.org/copyleft/gpl.html
'''
from gimpfu import *
import shlex
import subprocess
import os, sys
import tempfile

def plugin_main(img, drawable):
  command = "\"C:\\voronoi\\vor.bat\""   # << - EDIT path to the directory of the program: voronoi.exe, vor.bat, stippler.dll
  args = shlex.split(command)
  child = subprocess.Popen(args, shell=False)

register(
        "python_fu_voronoi",
       "Only for convenience - launches Voronoi with GIMP menu",   
        "Call voronoi",
        "RobA/Lylejk/MrQ",
        "GPL",
        "2014",
        "<Image>/Tools/Call Voronoi...",
        "*", 
        [],
        [],
        plugin_main,
        )

main()

vor.bat

Code: Select all

@echo off
echo *** Do Not Close this Window ***
echo Temp File: %1
cd C:/Voronoi                  
start "C:/Voronoi/voronoi.exe"

code.txt

Code: Select all

voronoi.exe -s 8000 -t .2 -n wilber.png wilber.svg

dinasset · **Posted:** Sat Dec 27, 2014 5:34 am **(#7)**

Thanks MareroQ!
Followed your instructions and obtained the voronoi svg version of one of my pictures.
But, just for lazy chatters like me, I like to recall that -until Garry and David will find time to implement a G'MIC mosaic- there is still a very good script from Graechan:
cobblestone-mosaic
the outcomes -even if not totally competitive with Lyle's experiments with Voronoi, Opus musivum et alii- are IMO very pleasant.
Here an example:

Attachment:

DSCF0731_GC-Cobblestone.png [ 3.7 MiB | Viewed 17867 times ]

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12516

That's cool MareroQ.

Yes, Graechan's Cobblestone Mosaic script is a must have Dinasset.

MareroQ · **Posted:** Mon Dec 29, 2014 2:33 pm **(#9)**

A small change in VoronoiShwith.py

MareroQ · **Posted:** Sat Dec 15, 2018 2:02 pm **(#10)**

Small update for Gimp 2.10 and some changes in the plugin interface.

Note: for correct operation, edit (preferably in notepad ++) lines 33,37,44,46,62,96 in the Artistic VoronoiSwitch.py file and line 5 in the vorbw.bat and vorc.bat files to determine the correct path to the directory Voronoi.

MareroQ · **Posted:** Mon Oct 12, 2020 12:02 pm **(#11)**

New plugin solution [no *. bat] is only available here:
https://www.gimpscripts.net/2020/10/
(required during the gimpscripts.net promotional period) :mrgreen:

fjkp123 · **Joined:** Sep 16, 2020 **Posts:** 26

Cool effect!

mahvin · **Joined:** Oct 06, 2010 **Posts:** 4045

I'm guessing the patch and fix was applied to 2.10.20 and then the same problem arose in 2.10.22? This is like the 5th or 6th time?

MareroQ · **Posted:** Tue Oct 13, 2020 2:29 am **(#14)**

This bug was only fixed in Gimp-2.10.22 :hehe

Nidhogg · **Posted:** Tue Oct 13, 2020 4:20 am **(#15)**

Thanks MareroQ, this is great. :bigthup

I'm using the voronoi stippler from terminal on Linux, or The Evil Mad Scientist Laboratories StippleGen2.

Attachment:

beauty-model.-voronoi-stippler2.jpg [ 244.1 KiB | Viewed 4025 times ]

MareroQ · **Posted:** Tue Oct 13, 2020 6:58 am **(#16)**

Hi Nidhogg.
Unfortunately, I was unable to compile Voronoi Stipple again (requires a different - older version of boost?).
Good thing the old version still works for Win10.
Can you give an exact recipe for Linux?

Nidhogg · **Posted:** Tue Oct 13, 2020 1:13 pm **(#17)**

Hi MareroQ.
This is what I did to get voronoi stippler to work on Linux.
Note, it was on 18.04 LTS have not tried on 20.04 yet.

sudo apt-get install libboost-dev
sudo apt-get install libboost-all-dev
sudo apt-get install libomp-dev
make

Copied voronoi_stippler to /usr/bin

Then I keep a voronoi folder in home with configured batch files, for example:

#!/bin/sh
voronoi_stippler -n -p 2 -s 8000 -c -t .2 -z 1.0 pics/input.png pics/output.svg

MareroQ · **Posted:** Tue Oct 13, 2020 10:55 pm **(#18)**

Thank You Nidhogg. :hi5

I've updated (compiled) Gimp to version 2.10.22.
I completed the voronoi stippler.py code to the location (user / bin / voronoi_stippler) - and it works in Ubuntu 20.04.
This can be a bit of a hassle - but the console window isn't visible.

mahvin · **Joined:** Oct 06, 2010 **Posts:** 4045

On first use, the plugin produced an error because it couldn't find the voronoi.svg file. Future users need to know that all that they have to do if this happens is run the plugin a second time.

Nidhogg · **Posted:** Wed Oct 14, 2020 10:32 am **(#20)**

Had to build and compile again for MX Linux. Stipples are awesome! Lyle should enjoy this plug-in.

Attachment:

angry-animal-big-carnivore-302304-voronoi_Stipples.jpg [ 460.93 KiB | Viewed 3927 times ]

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