[Octave-bug-tracker] [bug #49228] imread logic to read image from a file vs a URL, always fall back or look for protocol prefix?

[Mike Miller]

URL:
  <http://savannah.gnu.org/bugs/?49228>

                 Summary: imread logic to read image from a file vs a URL,
always fall back or look for protocol prefix?
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Thu 29 Sep 2016 02:06:47 PM PDT
                Category: Octave Function
                Severity: 1 - Wish
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: Need Info
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

Following on from bug #49219, I notice that imread attempts to read any string
argument as if it's a local file first, then tries to read it using urlwrite,
regardless if the string looks like a valid URL or not.

Matlab help for imread hints that it will only attempt to read an image from a
URL if it starts with a protocol prefix (e.g. "http://";).

Should imread have some kind of pattern / regex logic on the argument to
determine whether it looks like a file or a URL?

Should imread attempt to read an argument of "http://foo.jpg"; as if it were a
local file first? Even if that file exists should it even try to read as a
local file or go straight to attempting to download it with urlwrite?

Should imread attempt to read from a URL if called with a simple name of
"gnu.org"?

What does Matlab do?




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?49228>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/