Convert find>ls>sort output

[finn]

Hi.

I am trying to convert a subset of images in a directory into a movie. I have had success using the following command to process all images in a directory.

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$CONVERT -quality 90 -delay 10 `$LS -rt $DEST_PATH/*.jpg` $DEST_PATH/sunrise.mpg  2>&1| $TEE -a $LOG

Using a similar method, I tried to use a combination of find/ls/sort to achieve the desired result. When the next command is issued directly, it outputs the desired result.

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find $DEST_PATH/images/ -newer ${DEST_PATH}/newerstart ! -newer ${DEST_PATH}/newerend -exec ls {} \; | sort

[root@smt-web entire_day]# ./make_ravines_sunrise.sh
/home/data/webcams/ravines/entire_day/images/0690.jpg
/home/data/webcams/ravines/entire_day/images/0691.jpg
/home/data/webcams/ravines/entire_day/images/0692.jpg
/home/data/webcams/ravines/entire_day/images/0693.jpg
/home/data/webcams/ravines/entire_day/images/0694.jpg
...

Putting the "find" command in place of the "ls" command previously used, I receive the following:

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convert: unable to open image `none': No such file or directory.
convert: missing an image filename `/home/data/webcams/ravines/entire_day/sunrise.mpg'.

Does anyone know why this will not work and how to fix it?

Thanks for your help,
Finn

[anotherprogrammer123]

Hi Finn,

I do not know how to do this with ImageMagick, but I would highly recommend using AviSynth (an open source video processing framework) to do this.
Basically, you would use the ImageSource function and save to any video format you want with a small script like:

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ImageSource($DEST_PATH/%i.jpg)

And then just load it into VirtualDub and save as an .avi file.

Hope that helps.