We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.
Index › Programming Questions & Help › Video Capture,  Movie Playback,  Vision Libraries › Sequence of images. Video or individual pics
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
Sequence of images. Video or individual pics? (Read 868 times)
nickdatz
Sequence of images. Video or individual pics?
Oct 25th, 2006, 4:40pm  
Hi all,
I'd like to be able to control a sequence of images. I should be able to show a particular image out of something like 8000 images, and change very fast from one image to the other. The reads will be almost exclusively of consecutive images, but not necessarily ordered in an ascending way (show image 1,2,3,4,...,2000,stop. show image 2000,1999,1998, stop. show image 1998,1999,...3000 stop). This sequence will vary in speed, but I should be able to get at least 15fps in peaks.

What's the recommended way of doing that (speed is essential)? Should I use a video and then jump() to the point in time corresponding to that image? Should I use an array of already loaded pics (i guess this is too memory-consuming)? Should I load the pics dinamically from disk? (i think this should be quite slow)

I don't know yet about the resolution of the images but probably 640x480 in order to get a "decent" image when projected.
Back to top
 
Signatures are displayed at the bottom of each post or instant message. YaBBC code may be be used in your signature.
WWW  
JohnG
Re: Sequence of images. Video or individual pics?
Reply #1 - Oct 25th, 2006, 7:41pm  
8000 640x480 images would take up about 10 GIG of memory if all loaded at the same time, so that really isn't going to be an option.

A movie might be possible, but I don't know if it can provide the speed you want,the only way to find out is to try it...
Back to top
 
 
nickdatz
Re: Sequence of images. Video or individual pics?
Reply #2 - Oct 25th, 2006, 8:52pm  
Thanks John. I'm on my way to doing exactly that. I'll let you know in a while...
Back to top
 
Signatures are displayed at the bottom of each post or instant message. YaBBC code may be be used in your signature.
WWW  
Page Index Toggle Pages: 1
‹ Previous Topic | Next Topic ›