The LaTeX writer handles embedded images as standard images

Images are always embedded in the output PDF file, so embedded images
can be handled like normal images.

docutils_extended/_version.py

-__version_info__ = (0, 1, 5)
+__version_info__ = (0, 1, 6)
 __version__ = '.'.join(map(str, __version_info__))

docutils_extended/writers/rst2latex_extended.py

@@ -19,6 +19,7 @@ except:
 
 from docutils.core import publish_cmdline
 from docutils.parsers.rst import directives
+from docutils.parsers.rst.directives.images import Image
 from ..directives import CodeBlock, Tikz, TikzFigure, set_output_mode
 
 
@@ -36,6 +37,7 @@ def main():
     set_output_mode("latex")
     for directive_name in ("code", "code-block"):
         directives.register_directive(directive_name, CodeBlock)
+    directives.register_directive("embedded-image", Image)
     directives.register_directive("tikz", Tikz)
     directives.register_directive("tikz-figure", TikzFigure)
     publish_cmdline(writer_name="latex", description=description)