Video io, 'get' not working with OpenCv

Pieter Holtzhausen holtzhau at gmail.com
Thu Dec 22 05:40:39 EST 2011


Seems like the python bindings disabled that functionality
https://code.ros.org/trac/opencv/changeset/6358

On Thu, Dec 22, 2011 at 12:31 PM, Pieter Holtzhausen <holtzhau at gmail.com> wrote:
> Hello
>
> Yeah opencv made their python bindings work a bit less well with 2.3.1
> A workaround is to use cv.fromarray(img_mat) instead of img_mat
> wherever it complains in video.py. It is strange since automatic
> conversion was one of the cool features of the binding system...but
> I'll investigate a bit further.
>
> Regards
> Pieter
>
> On Thu, Dec 22, 2011 at 10:51 AM, robbert <superslimme at netscape.net> wrote:
>> On 17-12-11 23:55, Stéfan van der Walt wrote:
>>>
>>> Hi Robbert
>>>
>>> On Sat, Dec 17, 2011 at 7:50 AM, robbert<superslimme at netscape.net>  wrote:
>>>>
>>>> I've wrote a little test program to a extract a frame of a video file
>>>> (for
>>>> processing), but I can't get it work.
>>>
>>> Thanks for the report.  This works using GStreamer, so tomorrow I'll
>>> compile OpenCV and determine what the problem is.
>>
>>
>> Thanks Stéfan & Christoph for your responses.
>> If this problem is solved, I've probably all the necessary toolboxes to
>> leave matlab behind!
>>
>> In the meanwhile I tried to install the alternative back-end, GStreamer, but
>> without success.
>> The python demo's (of GStreamer) wont work, so there is no point in posting
>> the error that scikits-image generates.
>>
>> kind regards,
>>
>> Robbert



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