1) Taking so many pictures (10 to 20 a minute) , will I reach then EOL of the shutter?
2) Can CHDK take pictures w/o releasing the mechanical shutter?
3) Can CHDK scripting manage the SD storage card?4) Can CHDK erase the oldest pictures autonomously?
5) Can CHDK detect when the card is full?
Now I'm wondering if meta data or overlay text can be included into the images? Can CHDK do that?
Ah, in that case CHDK suits you fine,,,,<cut>...The quality of video from these cameras is surprisingly good if there's enough light. It can be triggered using motion detection too to avoid filling up the card too soon. S series cameras (bigger and more expensive) are even able to shoot stills while recording video, which I think might be perfect for your purpose. A script can of course do that too, but there will be a fairly long pause between the video clips.
...<cut>...Quote from: st2000 on 09 / February / 2009, 16:19:13Now I'm wondering if meta data or overlay text can be included into the images? Can CHDK do that?Well, we do have a datestamp patch somewhere, but it's not in current CHDK and AFAIK it doesn't allow custom text to be burned to the image. But I believe arbitrary embedded text is possible by modifying that patch. We don't currently know how to touch JPEG metadata (EXIF) from the camera.The easiest approach for metadata output (DNG aside, that's too slow for you and fills the card quickly), readily available in CHDK is to write whatever text you may wish to store to a text file. If need be, you can later take text from that log file and embed it to your images on a PC.
Hum, documentation yes, video ... well, I was thinking stills. I would have thought it better for a number of reasons. Mostly because stills probably take up less space. But also because you can manage storage by erasing the oldest stills. And, I'm interested in autonomous operation in a car looking out the front. The camera, if in a video-recording-mode would most likely operate non-stop.
So, is it possible to accumulate stills w/o using the shutter (which has a finite life) based on motion detection?Also, will these stills, if possible to create, be compressed or raw?
I asked about the embedded text because what I really want is to log current data with the pictures (i.e. speed for instance). It sounds like that feature, if possible, is in need of a developer. But what I should really have been asking is how to get that data into the camera. I just assumed the USB port was available for this.
Along those lines, can the USB port power the camera?
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