[Image-SIG] PIL Bug while converting EPS files to PNG

Brandon George brandon.j.george at gmail.com
Fri Dec 7 19:46:03 CET 2012

I wrote a simple implementation of PIL to convert a list of EPS files to
PNG. The output PNG files are at a much lower resolution than required. And
there seems to be no way to fix it.

Looking at /usr/lib64/python2.7/site-packages/PIL/EpsImagePlugin.py this is
implemented by calling ghostscript:

# Build ghostscript command

command = ["gs",

           "-q",                    # quite mode

           "-g%dx%d" % size,        # set output geometry (pixels)

           "-dNOPAUSE -dSAFER",     # don't pause between pages, safe mode

           "-sDEVICE=ppmraw",       # ppm driver

           "-sOutputFile=%s" % file,# output file

           "- >/dev/null 2>/dev/null"]

the size option only changes the output figure size but does not rescale
it, I can make the output image larger, but not higher resolution because
the EPS file is being imported at a low resolution.

Any help would be appreciated.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/image-sig/attachments/20121207/26d5976e/attachment-0001.html>

More information about the Image-SIG mailing list