Added January 26, Type 3. A font editor that's easy to use for Windows and Mac. Added May 11, Added June 3, The source code is here.
Added Sept 22, Added Nov 29, Added Feb 11, Rasterbater 1. Added December 20, CR8tracer , by Allan Murray. DragPotrace , by Akira Sato. Added October 14, Web interfaces: Vectorization. An easy-to-use web interface to Potrace. An outline font editor that lets you create and edit postscript and truetype fonts, among others. This program can invoke Autotrace or Potrace for converting bitmaps to vector fonts. It used to be called "PfaEdit". Added Aug 21, An application that let you typeset beautiful sheet music. It uses Potrace indirectly via mftrace. Added Apr 22, A collection of scripts that convert any TeX font into a Type1.
The newest version 0. Inkscape , by various authors. This is an excellent SVG editor. Potrace has been integrated since release 0. Added Sep 16, Added Aug 24, An AppleScript for processing color images, using Potrace. Added Oct 28, A Potrace front end for BluffTitler users. Added Jun 21, See also here. An interactive editor for printed circuit boards.
Added Jul 1, A Photoshop script for creating custom shapes. Added Dec 1, Software and services that are similar to Potrace: Autotrace , by Martin Weber. This program performs a similar task as Potrace. In my opinion, the output is not as nice, but it supports a much larger number of file formats, and it has been integrated with a larger number of other software packages.
Vector Magic. A commercial tracing tool that is available through a web interface, for a fee. Unlike Potrace, Vector Magic works for color images. Vectorize Now.
Automatically Trace and Vectorize Your Bitmap Images on Mac with Super Vectorizer
A commercial vectorizing service where each image is redrawn by hand. Black-and-white or color. Added Oct 31, If the examples on the webpage are representative, then this is the most astonishingly good image regularization filter that I have ever seen. It is based on a non-linear diffusion technique. It can be used for noise and artifact removal, resizing, and inpainting which means filling in missing image regions.
It works on color photographs and cartoons. Added Feb 2, Here are some case studies by people who have used Potrace to do interesting things. I particularly love projects that use Potrace to create objects in the physical world, such as C. Scott Ananian's article on how to make stained glass windows from color scans, and Matt Parsons's project on creating a model airplane from old scanned blueprints. Automatic generation of stained glass from scanned photos by C. Scott Ananian.
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This is an article about how to create vectorized map data using Potrace. Matt Parsons's model airplane project. Constructing model airplanes from old scanned schematics. Fragmented , an art project by Toby Skinner. Here are some web articles, listings, blogs, and books that cover Potrace and its applications. Trying Potrace [ English ] by Exocert. Potrace, rad image vectorizer by Will Benton. Converting images from bitmap to vector format [ English ] by Mike Vargas.
How to create your own font [ English ] by B. The little things by daveg dorja. Open Source Alternatives by Anders Rasmussen. How to make slides from handwritten notes using Potrace by Vince Vatter.
Scott Horne, O'Reilly, This is a reference book on fonts, and also contains a brief section on Potrace. This article introduces a new vector graphics primitive for representing color images, with very impressive results. Some small part of the algorithm is inspired by Potrace. A very nice article about creating stencils for spray-painting. While the article does not mention tracing directly, it would be useful for this sort of application.
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Potrace alphamax 1. A blog post about Potrace's alphamax parameter. Describes a new technique to simplify sketch drawings that comes close to artists' "inking". After cleaning up the image using a neural network, Potrace is used to perform the final vectorization. A blog post in which the author describes how she used Potrace in her computerized sewing machine software. Important notice about ports.
If you are planning to modify Potrace, including making a port of Potrace to another programming language, please be aware of the following. While the source code of Potrace is licensed under the GNU General Public License, the name "Potrace" is my trademark, and may only be used with my permission. In practice, I will permit the use of the name "Potrace" in connection with a port of Potrace to another programming language, provided that the port complies with the term of the GNU General Public License and produces the same high quality vectorized output as the original Potrace.
Ports that are buggy or do not produce high quality output are not permitted to use the name "Potrace". To ensure compliance with this policy, please run your port by me before making it public. Also, if you use the "Potrace" name or any derivative, such as "MyPotrace" , you must provide a name and email address where I can reach you. No autotracer can do that. What it does is give you a set of curves which you can use as a resource for your drawing. Potrace interprets a black and white bitmap, and produces a set of curves. For Potrace, we currently have three types of input filters to convert from the raw image to something that Potrace can use.
Generally the more dark pixels in the intermediate bitmap, the more tracing that Potrace will perform.
How To Convert JPG, PNG, GIF Images to PDF, SVG, EPS Vectors
It is suggested that the user experiment with lighter intermediate images first, getting gradually darker to get the desired proportion and complexity of the output path. This merely uses the sum of the red, green and blue or shades of gray of a pixel as an indicator of whether it should be considered black or white. The threshold can be set from 0. This uses the edge detection algorithm devised by J. Canny as a way of quickly finding isoclines of similar contrast. This will produce an intermediate bitmap that will look less like the original image than does the result of Brightness Threshold, but will likely provide curve information that would otherwise be ignored.
The threshold setting here 0. This setting can adjust the darkness or thickness of the edge in the output. The result of this filter will produce an intermediate image that is very different from the other two, but is very useful indeed. Instead of showing isoclines of brightness or contrast, this will find edges where colors change, even at equal brightness and contrast.
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