mehdidc/pixel_to_svg

Simple unsupervised segmentation based method for turning a raster image into SVG using potrace.

This is a simple unsupervised segmentation based method for turning a raster image into SVG.

How to install?

You first need to install pypotrace.

Here are the steps to install pypotrace:

1. sudo apt-get install build-essential python-dev libagg-dev libpotrace-dev pkg-config
2. git clone https://github.com/mehdidc/pypotrace
3. cd pypotrace
4. git checkout to_xml
5. rm -f potrace/*.c potrace/*.cpp potrace/agg/*.cpp potrace/*.so potrace/agg/*.so
6. pip install .

Once pypotrace is available, you can install this repo. Here are the steps:

1. git clone https://github.com/mehdidc/pixel_to_svg
2. cd pixel_to_svg
3. python setup.py install

How to use ?

Please check the example in https://github.com/mehdidc/pixel_to_svg/tree/master/examples

pixel_to_svg's Issues

run simple.py

Dear Author：

$ python3 simple.py
Traceback (most recent call last):
  File "simple.py", line 25, in <module>
    svg = to_svg(img, seg)
  File "/usr/local/lib/python3.8/dist-packages/pixel_to_svg-0.1.0-py3.8.egg/pixel_to_svg/pixel_to_svg.py", line 35, in to_svg
  File "/usr/local/lib/python3.8/dist-packages/pixel_to_svg-0.1.0-py3.8.egg/pixel_to_svg/pixel_to_svg.py", line 121, in binary_image_to_svg2
  File "/usr/local/lib/python3.8/dist-packages/svgpathtools/svg_to_paths.py", line 217, in svg2paths2
    return svg2paths(svg_file_location=svg_file_location,
  File "/usr/local/lib/python3.8/dist-packages/svgpathtools/svg_to_paths.py", line 144, in svg2paths
    if os_path.dirname(svg_file_location) == '':
  File "/usr/lib/python3.8/posixpath.py", line 152, in dirname
    p = os.fspath(p)
TypeError: expected str, bytes or os.PathLike object, not _io.StringIO

When I run simple.py, the above error appears...

'potrace._potrace.Bitmap' object has no attribute 'to_xml'

Hey, your repo looks perfect but it has one problem! While running the potrace step, to_xml() method is not there! Please tell me how to tackle it?

Error installing pypotrace

Hi!
When I try to run pip install . in pypotrace
I get the following error:

 Error compiling Cython file:
    ------------------------------------------------------------
    ...
                self._data = value
                # Init potrace bitmap struct
                self.po_bitmap.w = self._data.shape[1]
                self.po_bitmap.h = self._data.shape[0]
                self.po_bitmap.dy = (self.po_bitmap.w + (
                    (N - (self.po_bitmap.w & (N - 1))) & (N - 1))) / N
                                                                   ^
    ------------------------------------------------------------
    
    potrace/_potrace.pyx:130:63: Cannot assign type 'double' to 'int'
    
    Error compiling Cython file:
    ------------------------------------------------------------
    ...
    cdef void setpixel(potrace_bitmap_s *bmp, int x, int y, int on):
        """
        Set a pixel on or off in a potrace_bitmap_s.
        """
        if on:
            bmp.map[y*bmp.dy + x/N] |=  (1uL << (N - 1 - x % N))
                   ^
    ------------------------------------------------------------
    
    potrace/_potrace.pyx:377:15: Invalid index type 'double'
    
    Error compiling Cython file:
    ------------------------------------------------------------
    ...
        Set a pixel on or off in a potrace_bitmap_s.
        """
        if on:
            bmp.map[y*bmp.dy + x/N] |=  (1uL << (N - 1 - x % N))
        else:
            bmp.map[y*bmp.dy + x/N] &= ~(1uL << (N - 1 - x % N))
                   ^
    ------------------------------------------------------------
    
    potrace/_potrace.pyx:379:15: Invalid index type 'double'
    

I think this is maybe due to version changes? I added an explicit cast to int at every line with issue, which resulted in a functioning installation.