slide

Simple, lightweight slideshow selecting random images from specified directory. This slideshow is designed to compile and run also on a Raspberry Pi, for example to turn it into a digital picture frame.

Tested versions:

• Raspberry Pi 3 running Raspbian Stretch.
• Raspberry Pi 3 running Raspbian Buster.

Screen background is filled with a scaled version of the image to prevent pure black background.

Usage

slide [-t rotation_seconds] [-o background_opacity(0..255)] [-b blur_radius] -p image_folder -r

• image_folder: where to search for images (.jpg files)
• -r for recursive traversal of image_folder
• -s for shuffle instead of random image rotation
• -S for sorted rotation (files ordered by name, first images then subfolders)
• rotation_seconds(default=30): time until next random image is chosen from the given folder
• background_opacity(default=150): opacity of the background filling image between 0 (black background) and 255
• blur_radius(default=20): blur radius of the background filling image

Dependencies

• libexif
• qt5

sudo apt install libexif12 qt5-default

Build

dev libs needed to build slide on from source:

sudo apt install libexif-dev

mkdir -p make
cd make
qmake ../src/slide.pro
make
sudo make install

macOS

Prerequisite: brew

brew install qt5
brew install libexif
mkdir -p build
cd build
qmake ../src/slide.pro
make

Article on using slides

This article has more helpful ways that you could use this repo as a picture frame
https://opensource.com/article/19/2/wifi-picture-frame-raspberry-pi

Removing black border

if you find that you have a black border around your screen you can remove it by disabling overscan. This is done by editing /boot/config.txt and uncommenting disable_overscan=1