Files
slide/README.md
omegahack0 df931db436 Added info about fixing black border & more examples
Added how to disable over scan removing the black bar for your raspberry pi, as well as linked to an article that includes more examples on how to use the project.
2020-12-15 14:03:11 -05:00

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# 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.
![screenshot](doc/screen.jpg)
## 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
```