08-03-2017, 11:38 AM
08-03-2017, 11:58 AM
Not directly
First thoughts:
1. Render some solid noise Filters -> Render -> Clouds -> Solid Noise screenshot: http://i.imgur.com/RbjLuxE.jpg
2. You might have to tweak the brightness http://i.imgur.com/a9D8PQQ.jpg
3. Filters -> Blur -> Pixelise
First thoughts:
1. Render some solid noise Filters -> Render -> Clouds -> Solid Noise screenshot: http://i.imgur.com/RbjLuxE.jpg
2. You might have to tweak the brightness http://i.imgur.com/a9D8PQQ.jpg
3. Filters -> Blur -> Pixelise
08-04-2017, 09:13 AM
Another method:
[attachment=655]
- Start with a small image (you will blow it up by the size of your squares to if you need 16x16 squares in a 800x800 image, start with a 50x50 image/layer).
- Fill 50% gray HSV=0,0,50% or RGB=127,127,127
- Filter>Noise>HSV noise: Hue=0, Saturation=0, Value=128, Holdness=1. If you have all of this right, Windows>Dockable dialog>Histogram should show a horizontal (but jagged) line, indicating an equal spread of the grays.
- Image>Scale image (or Layer>Scale layer): Size=1600%, interpolation=None
[attachment=655]
08-06-2017, 11:47 AM
Is it possbile to make random sized rectangles ?
08-06-2017, 12:19 PM
You come up with some interesting questions.
No solution but this might be a starting point. The G'mic blockism filter
http://i.imgur.com/xdHuQxW.jpg
And steps leading to that, noise -> posterise -> gmic
http://i.imgur.com/6gmfoez.jpg
Hopefully, someone will come up with more suggestions.
No solution but this might be a starting point. The G'mic blockism filter
http://i.imgur.com/xdHuQxW.jpg
And steps leading to that, noise -> posterise -> gmic
http://i.imgur.com/6gmfoez.jpg
Hopefully, someone will come up with more suggestions.
08-06-2017, 12:56 PM
(08-03-2017, 11:58 AM)rich2005 Wrote: [ -> ]Not directly
First thoughts:
1. Render some solid noise Filters -> Render -> Clouds -> Solid Noise screenshot: http://i.imgur.com/RbjLuxE.jpg
2. You might have to tweak the brightness http://i.imgur.com/a9D8PQQ.jpg
3. Filters -> Blur -> Pixelise
Second thoughts:
- The Solid Noise histogram is not spread evenly over all the range of values, so even if you use Levels or Brightness/Contrast to extend the range, you still have more gray than anything else
- The larger the squares in Colors>Pixellize, the more you average values, and the more your squares end up gravitating around 50% gray. This problem would show up whatever the initial noise rendering technique. So at that point you need a second shot of brightness/contrast to re-extend the range of values.
08-06-2017, 01:33 PM
(08-06-2017, 12:19 PM)rich2005 Wrote: [ -> ]You come up with some interesting questions.
No solution but this might be a starting point. The G'mic blockism filter
http://i.imgur.com/xdHuQxW.jpg
And steps leading to that, noise -> posterise -> gmic
http://i.imgur.com/6gmfoez.jpg
Under noise filter I don't have posterize and I don't have blockism in G'Mic. Where did you find it ?
08-06-2017, 04:10 PM
Posterise is in the colors menu: http://i.imgur.com/r5kDdr2.jpg
You have the QT vesion of g'mic. I saw your post on GC, you got G'mic installed but you need to update the filters.
Enable Internet, click on the update icon.
The search does work. (As a note there is a Gimp standard blockism filter which is very different.)
gmic screenshot: http://i.imgur.com/khCSPP9.jpg
You have the QT vesion of g'mic. I saw your post on GC, you got G'mic installed but you need to update the filters.
Enable Internet, click on the update icon.
The search does work. (As a note there is a Gimp standard blockism filter which is very different.)
gmic screenshot: http://i.imgur.com/khCSPP9.jpg
08-06-2017, 04:15 PM
Thanks. I have version 2.02 installed.
08-07-2017, 08:36 AM
(08-06-2017, 04:15 PM)grit Wrote: [ -> ]Thanks. I have version 2.02 installed.
That was updating the filters not the G'mic version. Should always do a refresh after installation and if you keep the internet unchecked, enable it and update now-and-again.
A-new-day and playing with that gmic blockism filter. Some interesting patterns possible.
This one starting with a radial colour gradient, with sawtooth repetition, interesting colourful pattern, which can desaturate if grey needed. http://i.imgur.com/rcfejQ9.jpg