Programming and technology blog

There are two tools I tried on a  Mac to generate a movie from a sequence of jpg images: iMovie : very complete video editor, i.e. lots of interesting features such as adding sound to your video, titles and transitions. Works on jpg and png files. However, the video encoding is a slow process if applied on too many images (e.g. more than 1000). Official website . I tested with version 10.1.8 Time Lapse Assembler : very simple interface, i.e. a lot less features than iMovie.  Works on jpg files only. Great if you are only interested in generating a simple movie from a sequence of images without adding sound, titles, or transitions to your video. Application works great when applying it on lots of images (e.g. more than 1000). Official website . I tested with version 1.5.3 Contents    1. Mini-review #1: iMovie    2. Mini-review #2: Time Lapse Assembler    3.  Use case: Time Lapse Assembler applied to security camera images...

There are two tools I tested to make a split screen movie on a Mac: iMovie: video editor from Apple, official website . I tested with  version 10.1.8 OpenShot:  free and open source video editing software that works on FreeBSD/Linux/macOS/Windows, official website . I tested with version 2.4.1 Contents     1. Split screen layout selected     2. iMovie         2.1 Steps to make a split screen movie with iMovie     3. OpenShot         3.1 Steps to make a split screen movie with OpenShot Split screen layout selected More specifically, I wanted to create a split screen movie with the following layout having a 16:9 aspect ratio: Figure 1. Split screen layout: Movie 3 should take the right half of the screen My basic motion detection system generates 3 videos, and I wanted to combine them in a single movie for better visualization. Movie 3 should take the right half of the...

If you want to make a GIF from a video file on your Mac, and are looking for a free tool to do it, I recommend using PicGIF Lite (free version). You can load video file or a list of images. Don't make your GIFs too long (more than 5 seconds) or your GIF file could be too big (10 MB and more). Sample gif built from sequence of images in the SBMnet dataset As a side note , you can trim your MPEG-4 videos with Quicktime using the CMD+T command. If you are having difficulty with Quicktime reading your video file format (e.g. avi movie files), the OpenShot video editor will surely open your video file (it is based on the FFmpeg library), and let you trim it among many other things. Reference: check this  macworld's How-to article  for other GIF-making tools that allow you for example to create GIFs from Youtube or Vimeo videos, or from recording your screen.