potrace | Tool for tracing a bitmap

I have multiple png files and I'm trying to get the polygon contour coordinates. That is the simplified coordinates, only each outer corner (not a convex hull polygon).

The program that will do this at the moment is python and opencv. But another program is oke I did try to fix this using npm packages, imagemagick, potrace, Lua. It will be uses as a shell command in a 'build polygons from images' process.

This was the last test under python.

The problem now is the that some edges are 'not' correct in the example below.

I did the following steps

• Convert the alpha to black and white
• Trace the contour
• Get the coordinates

1. The original png file contains black lines (keep them).

1. Converted black and white image (you can't see the top line, because this website have a white background)

In my flutter app I'm using a FutureBuilder to run a Future but nevertheless it blocks the main UI thread. This is the code I'm using:

I have a custom library I'm trying to build with Browserify. The library uses fabric.js, extends it with some custom classes and exposes it globally to be used in the browser and in node.js. This is the main entry point for the library:

I'm currently trying to convert BMP files to SVG files using Python. I'm trying to find a Python library that will enable me to convert BMP/PNG/JPEG files to SVG files.

I've already tried using Potrace but the quality is awful. I need the end results to be fairly high-quality. I can't use online converters and must be able to do these conversions on my machine as I'm working with sensitive data.

Any suggestions would be greatly appreciated. Thank you!

Edit: I found out that I wasn't using the correct settings for Potrace in my testing. This is what yielded the "awful" result. Unfortunately, I've also learned that Potrace doesn't support color outputs. I've messed around with Inkscape and Vector Magic and I think they're my best bet at the moment.

I'm developer, but need to do a quick design with SVG image. And came across an issue. My svg image file is as following:

I'm not particularly clear on the ins and outs of rendering svg in html. I have loaded an svg file via svg-inline-loader, and the data appears to be present, but nothing is rendering. I imagine I'm missing something rather basic here, but I can't see what, and I haven't been able to find any resources on what may cause this.

I would like to install Potrace on my Windows 10 Computer and I will be using it with python 2.7.5. I am following the installation instruction from this site.( https://pypi.python.org/pypi/pypotrace) for Windows.

I installed MinGW – following these YouTube instructions [https://www.youtube.com/watch?v=DHekr3EtDOA]

I also download Agg-2.5 and potrace-1.15.win64 and put these 2 folders inside C:/src (see Picture 1)

However, I am stuck at this specific point of the installation instructions. It says:

I extracted both packages in my C:\src folder. Both are easy to build by executing ./configure; make and ./autogen.sh; make respectively, on MSYS prompt.

I have no idea how what that means or how to do it. I did find MSYS prompt but I have no idea what to write in the prompt to complete this step (see Picture 2).

I want to use Potrace for a C++ project on Windows in Visual Studio, but I have no clue of how to include Potrace into my project. I have tried to compile the C files using Cygwin, and that way create an .a file and then link to it in visual studio, but that didn’t work. Visual Studio were able to recognize the the functions from Potrace, but when running a test program with Potrace(Calling potrace_version() ), Visual Studio got the error “LNK2019 unresolved external symbol _potrace_version referenced in function_main”

I have gotten it to work on Ubuntu by using the technique mentioned above, and then compiling my code with: g++ main.cpp backenddxf.cpp ImageManipulation.cpp ./libubuntu/libpotrace.a -o test.out 'pkg-config --cflags --libs opencv

Do I have to compile the source code(Called “source distribution” on the website) to a lib file, and then link it to my project, in that case, how do I do so? Or is there something I have missed. I am using Visual Studio 2017 on Windows 10.

I am not to proficient in the workings of C++ so a detailed explanation is greatly appreciated.

I have converted image to svg and get the path vector like below