When I run raspistill -o image.jpg for several days ago, I got image files of size 640*480 which is about 200K.
Then I run some python codes which invoke picamera module in the past two days
Today I run apt-get update and then installed uv4l driver according to http://www.linux-projects.org/modules/s ... e&artid=14
Now when I run same raspistill command to capture a image file, the file size is changed to about 2M and the file size becomes 2592*1944.
If I run raspistill command with -w 640 -h 480 parameters, it generates image files of similar size as what I got several days ago.
It looks like the default image size generated by raspstill is changed from 640*480 to 2592*1944.
1. What's the cause of the default image file size change?
2. Is there any way I can change the default image file size back to 640*480?