[GRASS-user] Matching Histograms for Aerial Photography?

[Jeshua Lacock]

> On Jun 20, 2017, at 6:02 AM, Moritz Lennert <mlennert at club.worldonline.be> wrote:
> 
> You can try the addon: i.histo.match. You can install it with g.extension.

Hi Moritz,

Thanks for the suggestion. Currently the data is raster - I assume I will have to convert it to imagery?

I tried installing the extension, but it fails with an SSL certificate error. I don’t see anyway to ignore or use a non-secure transfer.

Here is the output:

GRASS 7.2.1 (naipWest):~ > g.extension extension=i.histo.match

Fetching <i.histo.match> from GRASS GIS Addons repository (be patient)...
Traceback (most recent call last):
  File "/opt/local/share/grass-7.2.1/scripts/g.extension", line 1733, in <module>
    sys.exit(main())
  File "/opt/local/share/grass-7.2.1/scripts/g.extension", line 1712, in main
    install_extension(source=source, url=url, xmlurl=xmlurl)
  File "/opt/local/share/grass-7.2.1/scripts/g.extension", line 683, in install_extension
    source=source, url=url)
  File "/opt/local/share/grass-7.2.1/scripts/g.extension", line 1146, in install_extension_std_platforms
    outdev=outdev, directory=srcdir, tmpdir=TMPDIR)
  File "/opt/local/share/grass-7.2.1/scripts/g.extension", line 1094, in download_source_code
    f, h = urlretrieve(url, zip_name)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 98, in urlretrieve
    return opener.retrieve(url, filename, reporthook, data)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 245, in retrieve
    fp = self.open(url, data)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 213, in open
    return getattr(self, name)(url)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 443, in open_https
    h.endheaders(data)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 1038, in endheaders
    self._send_output(message_body)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 882, in _send_output
    self.send(msg)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 844, in send
    self.connect()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 1263, in connect
    server_hostname=server_hostname)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ssl.py", line 363, in wrap_socket
    _context=self)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ssl.py", line 611, in __init__
    self.do_handshake()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ssl.py", line 840, in do_handshake
    self._sslobj.do_handshake()
IOError: [Errno socket error] [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:661)



Best,

Jeshua Lacock
Founder/Engineer
<3DTOPO.com>
GlassPrinted.com