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comicsforblind [2019/02/19 07:32]
einarpetersen [Automatic 2D extraction to 3D]
comicsforblind [2019/05/22 09:31] (current)
einarpetersen [Automatic 2D extraction to 3D]
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 ===== Automatic 2D extraction to 3D ===== ===== Automatic 2D extraction to 3D =====
  
-Imagine a grayscale image. You would load the image into a slicer - for example Cura, there you will be given an option to go from dark to light, or from light to dark.+Imagine a grayscale image. You would load the image into a slicer - for exampleCura, there you will be given an option to go from dark to light, or from light to dark.
  
-Once you choose an option Cura will create a 3D rendition of what it thinks the image should look like in 3D.+Once you choose an optionCura will create a 3D rendition of what it thinks the image should look like in 3D.
  
 This enables you to take the 2D grayscale image and convert it to 3D form, this you can then work on in a modeling tool. This enables you to take the 2D grayscale image and convert it to 3D form, this you can then work on in a modeling tool.
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 Something similar can be done with a flat SVG image that you would like to create in relief form. Something similar can be done with a flat SVG image that you would like to create in relief form.
  
-You would simply ​the import the SVG into a tool like TinkerCAD and then extrude to your intended depth.+You would merely ​the import the SVG into a tool like TinkerCAD ​(from https://​tinkercad.com ) and then extrude to your intended depth.
  
 +As mentioned a tool to use for this process is something like Cura 4.0 or better, the following is a short description on how I just took 23 pages plus cover, front and back and created the raw 3D pages for my sci-fi comic book Implant!
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 +So first I darkened the images to remove edges around images as images become own walls - So to anyone wanting to convert their comic books to a format readable by the blind and looking at converting pages into a 3D format remember to save work in panels without the panels outline on the actual image, I only had the finished page to work with so I had to do a lot of cleaning up in order to produce these raw files. Anyway this is how I did it!
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 +Load image into Cura 4.0
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 +Cura will automatically ask how you want to import in order to generate a height map based on either light to dark extrusion of pixels from the image or dark to light extrusion.
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 +These values here is what you are presented with and what I choose for the initial generation of pages for Implant!
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 +...
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 +Height (mm) 10
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 +Base (mm) 1
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 +Width (mm) 84.xxxxx
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 +Depth (mm) 120.0
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 +Lighter is higher / Darker is higher (save as lighter or darker) - (My choice Lighter is higher)
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 +Smoothing (slider scale) - (using preset smoothing)
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 +
 +...
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 +After finishing the generation and saving in OBJ and m3f (cura format) I have proceeded on an outreach campaign to the 3D printing community to see if I can find an available collaboration partner in order to make the files better suitable for 3D printing.
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 +Here is a PDF explaining how this process worked including descriptive images: https://​www.dropbox.com/​s/​ctrz54s0fnoidyb/​2Dto3D_raw_page_extraction.pdf?​dl=1
  
 ===== Laser engraving ===== ===== Laser engraving =====
comicsforblind.1550590379.txt.gz ยท Last modified: 2019/02/19 07:32 by einarpetersen