take a X pictures with Y seconds between every image

[ladiko]

I would like fswebcam to have a 2 seconds initialization delay, then take 6 images with different names and a delay of 0.5 seconds between each image and then quit. From reading the man page, i think i can only start an infinite loop and each image gets overwriten by the next one.

Right now i am using http://linux.die.net/man/1/streamer with streamer -c /dev/video0 -q -s 1920x1080 -t 10 -r 2 -j 100 -o ~/00.ppm to create 00.ppm to 09.ppm, delete the first 4 (too dark or broken) and convert the last 6 to JPG. If i use streamer to directly create JPGs, there are strange artefacts in red colored image parts, which doesnt happen when using PPM. Maybe its related to MJPG vs. YUYV !? So streamer doesnt support an initial delay nor produce usable JPGs.

[roygbyte]

If you have the option to run this as a bash script, you could do this:

#!/bin/bash

INDEX=0
COUNT=3
DELAY=1
RES='1024x786'

while [[ $INDEX < $COUNT ]]; do	
	IMAGE="$INDEX".jpg
  	fswebcam -r $RES $IMAGE
	echo "Image saved to $IMAGE"
  	sleep $DELAY
  	INDEX=$(($INDEX + 1))
done