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Bitmap mesh.

Thu Jan 21, 2016 2:56 am

Been toying with converting bitmaps to topological wireframes of late. Below's the steps I used for the Crinkle only result.

ref: http://www.fontplay.com/freephotos/sixt ... 06-042.jpg

First I start with creating the convolution layer (don't have too, but for crinkle only result, it will yield a better result).

I first dup then run G'MIC's bilateral filter on top layer (created a custom preset, but bilateral filter is located under Repair):

Bilat.png
Bilat.png (209.73 KiB) Viewed 2784 times


I then set the result to Grain Extract; this is your convolution layer:

Re: Bitmap mesh.

Thu Jan 21, 2016 2:58 am

I then downsize:

downsize.png
downsize.png (28.83 KiB) Viewed 2783 times


Followed by a solid white layer set to 50% opacity (80% opacity if you use straight target image):

Re: Bitmap mesh.

Thu Jan 21, 2016 3:01 am

Now run the 3D Elevation preset (again used a custom preset but 3D Elevation is located under Rendering)

Create a solid white layer and set to Screen and merge down. Then create a solid black layer (as base layer) and merge down. Adjust contrast and levels until happy. I ran Freaky details as well for my final result.

Re: Bitmap mesh.

Thu Jan 21, 2016 8:10 am

Lyle you should consider writing this as a new filter in G'MIC (Artistic>Wireframe) :)

Re: Bitmap mesh.

Thu Jan 21, 2016 8:18 am

Hoping Diego can. :)

Re: Bitmap mesh.

Thu Jan 21, 2016 8:18 am

Rod, I've already written (with Lyle invitation) the filter, I posted the first result under the topic "Just the clinkers".
I'm waiting upon Lyle to be ready to test it.

Re: Bitmap mesh.

Thu Jan 21, 2016 8:19 am

Lyle, do you want me to post here the filter I wrote under your tut, in order for you to test it?

Re: Bitmap mesh.

Thu Jan 21, 2016 8:21 am

Whereever you want to post it Diego. About to have to leave though and won't be back for a little while. Others can beta test too; maybe they will like it as well. My bet is it can all be done withing G'MIC, but, however you decide to do the automation, it will be appreciated. :)

Re: Bitmap mesh.

Thu Jan 21, 2016 8:26 am

OK, here is the filter in its current status
The output keeps all the layer step by step (unless the user asks to flatten)
DIEGO_Wireframe_Map_Lyle.7z
(2.04 KiB) Downloaded 78 times

Re: Bitmap mesh.

Thu Jan 21, 2016 8:42 am

Here are my results with this image -
Image

Good stuff! :bigthup

Image

I kept everything default.
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