Ben Pierre wrote this -
http://www.nukepedia.com/plugins/colour/imagetool/
works live as well but wont return pixel position
Howard
>________________________________
> From: Stephen Newbold <[email protected]>
>To: Nuke Python discussion <[email protected]>
>Sent: Thursday, 12 July 2012, 15:00
>Subject: Re: [Nuke-python] Max velocity from a scan line
>
>Hmm, not really as I say it needs to be in a self-contained python script
>embedded in the scanline renderer itself. You can get a decent 'live' min/max
>using the dilate/erode trick or just write a custom plugin to do this nice and
>fast but I can't go there for this.
>
>Steve
>
>Hugo Léveillé wrote:
>> Lazy answer but would using to curve tool to extract max data be an
>> option instead of looping pixels?
>>
>> On Thu, Jul 12, 2012, at 13:46, Stephen Newbold wrote:
>>
>>> Hi, I have a tool that needs to obtain the maximum velocity value from a
>>> scanline renderer. Currently I am finding the max pixel value of the
>>> motion channel generated by the scanline renderer by iterating through each
>>> pixel of the motion channel and returning the max(). A basic but
>>> inaccurate optimisation is to skip x pixels to speed this up but I was
>>> hoping there might be a more cunning way of doing this?
>>>
>>> I'm presuming the Scanline Renderer itself doesn't store min/max velocities
>>> in a hidden knob or something else accessible?
>>>
>>> I was hoping to keep this process live and contained in an embedded python
>>> script, so using NDK or a node tree (dilate to value of width of image
>>> worked well enough if I went this method) so any suggestions are welcome.
>>>
>>> Steve
>>>
>>> -- Stephen Newbold
>>> Compositing Lead - Film
>>> MPC
>>> 127 Wardour Street
>>> Soho, London, W1F 0NL
>>> Main - + 44 (0) 20 7434 3100
>>> www.moving-picture.com
>>>
>>> _______________________________________________
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>>>
>>
>>
>>
>
>
>-- Stephen Newbold
>Compositing Lead - Film
>MPC
>127 Wardour Street
>Soho, London, W1F 0NL
>Main - + 44 (0) 20 7434 3100
>www.moving-picture.com
>
>_______________________________________________
>Nuke-python mailing list
>[email protected], http://forums.thefoundry.co.uk/
>http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python
>
>
>
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