Screenshot with mplayer

To take screenshots with mplayer, you need to first run mplayer with a special flag.

mplayer -vf screenshot movie001.mp4

Then once the movie is playing you can screen shot any frame by hitting the 's' key. mplayer will name the files starting with shot0001.png.

When I first tried …

more ...

Making time lapses

Instructions

  1. Make a new directory and copy only the images that are used for the timelapse.
mkdir /tmp/tl
cp timelapse*.jpg /tmp/tl/
  1. Resize the images to a certain size. (Optional):

    for i in *.JPG; do echo -e "$i...\c"; convert "$i" -resize 1920x1080 "$i"; echo done; done
    
  2. Create …

more ...

Watermarking with Image Magick

I decided to try and start signing my pictures.

composite -watermark 15% -gravity southeast sign-1.png $i $i;

It needs more tweaking but that will do for now.

To convert all files in a directory:

for i in *.JPG; do
        echo -e "$i... \c";
        composite -watermark 15% -gravity southeast sign-1 …
more ...