On 2017-02-03, Dave Liquorice  wrote:
> On Fri, 3 Feb 2017 08:07:53 -0000 (UTC), sean wrote:
>
>> I see the pictures are all in focus ...
>
> A Pi camera has a tiny aperture, it's almost a pin hole camera so
> depth of field is from about a few feet to infinity.
>
>> and did pretty well with the white balance, although that's probably
>> because you're inside a well lit area. Any experience outside?
>
> I had one showing an outside scene and time lapsed that. The white
> balance set to auto worked very well.
>

Do you se the white balance with the python picamera module? Is that the
same thing Larry referenced earlier?

>> Once you have all the images, you load them up on your machine and use
>> what to put the time lapse together?
>
> Imaging taking uses python picamera module. For processing of stills,
> adding date/time etc, "convert" from imagemagick and python-pil to
> analyse the image to determine if it's dark or not (timelapse of
> black stills is a bit boring) and to render the stills into a time
> lapse movie mencoder.

Just curious, are you processing the stills on the pi or copying them
over to x86?

Do you have any you're willing to share?

If you're doing a time-lapse outside, do you set a time frame of when it
doesn't need to snap pictures?

>
>> Any concerns of SD card wear? Again, SD cards are cheap and that
>> possibility could happen with gopros as well.
>
> My Pi time lapse would kill a card or USB stick in about 6 weeks. But
> all image processing was being done on the Pi. A full HD still every
> 30 seconds (1920 x 1080, 1.5 MB ish, 2,880 times/day), checked to see
> if it's dark, if not add date/time, averge of another 1440 writes. So
> something of the order of 4 to 5,000 writes/pay. 8 GB card could hold
> about 20 days of still images and 8 timelapses on a FIFO basis.
>

Ah, so you're using imagemagick on the raspberry pi? Wow, that's quite a
long time-lapse. Since it sounds like you're doing these outside, how
are you powering the pi?
Do you use the raspberry pi camera version 1 or 2?

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