Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/ropensci/magick
Magic, madness, heaven, sin
https://github.com/ropensci/magick
image-magick image-manipulation image-processing imagemagick imagemagick-wrapper magick r r-package rstats
Last synced: 3 months ago
JSON representation
Magic, madness, heaven, sin
- Host: GitHub
- URL: https://github.com/ropensci/magick
- Owner: ropensci
- License: other
- Created: 2016-07-02T15:33:30.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2024-03-08T09:55:04.000Z (4 months ago)
- Last Synced: 2024-03-08T10:55:29.949Z (4 months ago)
- Topics: image-magick, image-manipulation, image-processing, imagemagick, imagemagick-wrapper, magick, r, r-package, rstats
- Language: R
- Homepage: https://docs.ropensci.org/magick
- Size: 15.8 MB
- Stars: 444
- Watchers: 24
- Forks: 64
- Open Issues: 78
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Lists
- awesome-r-dataviz - magick - Advanced Image-Processing in R. [[Tutorial]](https://cran.r-project.org/web/packages/magick/vignettes/intro.html) (Drawing & Rendering / Miscellaneous)
- jimsghstars - ropensci/magick - Magic, madness, heaven, sin (R)
README
# rOpenSci: The *magick* package
> Advanced Image-Processing in R
[](https://www.repostatus.org/#active)
[](https://cran.r-project.org/package=magick)
[](https://ropensci.r-universe.dev/magick)
[](https://cran.r-project.org/package=magick)
[](https://github.com/ropensci/magick/actions)
Bindings to ImageMagick: the most comprehensive open-source image
processing library available. Supports many common formats (png, jpeg, tiff,
pdf, etc) and manipulations (rotate, scale, crop, trim, flip, blur, etc).
All operations are vectorized via the Magick++ STL meaning they operate either
on a single frame or a series of frames for working with layers, collages,
or animation. In RStudio images are automatically previewed when printed to
the console, resulting in an interactive editing environment.
## Documentation
About the R package:
- [Getting started: The magick package: Advanced Image-Processing in R](https://docs.ropensci.org/magick/articles/intro.html)
- [rOpenSci Community Call (recording)](https://vimeo.com/channels/rocommunitycalls/180799058)
About the underlying library:
- [Magick++ Tutorial](https://www.imagemagick.org/Magick++/tutorial/Magick++_tutorial.pdf)
- [Magick++ STL Documentation](https://www.imagemagick.org/Magick++/STL.html)
## Hello World
**Run examples in RStudio** to see live previews of the images! If you do not use RStudio, use `image_browse` to open images. On Linux you can also use `image_display` to get an X11 preview.
```r
library(magick)
frink <- image_read("https://jeroen.github.io/images/frink.png")
image_trim(frink)
image_scale(frink, "200x200")
image_flip(frink)
image_rotate(frink, 45) ## <-- result of this is shown
image_negate(frink)
frink |>
image_background("green") |>
image_flatten() |>
image_border("red", "10x10")
```
```r
image_rotate(frink, 45) |> image_write("man/figures/frink-rotated.png")
```
Effects
```r
image_oilpaint(frink)
image_implode(frink)
image_charcoal(frink) ## <-- result of this is shown
image_blur(frink)
image_edge(frink)
```
```r
image_charcoal(frink) |> image_write("man/figures/frink-charcoal.png")
```
Create GIF animation:
```r
# Download images
oldlogo <- image_read("https://developer.r-project.org/Logo/Rlogo-2.png")
newlogo <- image_read("https://jeroen.github.io/images/Rlogo-old.png")
logos <- c(oldlogo, newlogo)
logos <- image_scale(logos, "400x400")
# Create GIF
(animation1 <- image_animate(logos))
image_write(animation1, "man/figures/anim1.gif")
# Morph effect <-- result of this is shown
(animation2 <- image_animate(image_morph(logos, frames = 10)))
image_write(animation2, "man/figures/anim2.gif")
```
Read GIF animation frames. See the [rotating earth example GIF](https://upload.wikimedia.org/wikipedia/commons/2/2c/Rotating_earth_%28large%29.gif).
```r
earth <- image_read("https://upload.wikimedia.org/wikipedia/commons/2/2c/Rotating_earth_%28large%29.gif")
length(earth)
earth[1]
earth[1:3]
earth1 <- rev(image_flip(earth)) ## How Austrialans see earth
image_write(earth1, "man/figures/earth1.gif") ## <-- result of this is shown
```
R logo with dancing banana
```r
logo <- image_read("https://www.r-project.org/logo/Rlogo.png")
banana <- image_read("https://jeroen.github.io/images/banana.gif")
front <- image_scale(banana, "300")
background <- image_scale(logo, "400")
frames <- lapply(as.list(front), function(x) image_flatten(c(background, x)))
image_write(image_animate(image_join(frames)), "man/figures/Rlogo-banana.gif")
```
## Use magick in Shiny Apps
This demo application shows how to use magick with shiny: https://github.com/jeroen/shinymagick
## Installation
Binary packages for __macOS__ or __Windows__ can be installed directly from CRAN:
```r
install.packages("magick")
```
Installation from source on Linux or OSX requires the imagemagick [`Magick++`](https://www.imagemagick.org/Magick++/Documentation.html) library. On __Debian or Ubuntu__ install [libmagick++-dev](https://packages.debian.org/testing/libmagick++-dev):
```
sudo apt-get install -y libmagick++-dev
```
On __Fedora__, __CentOS or RHEL__ we need [ImageMagick-c++-devel](https://src.fedoraproject.org/rpms/ImageMagick). However on CentOS the system version of ImageMagick is quite old. More recent versions are available from the [ImageMagick downloads](https://www.imagemagick.org/download/linux/CentOS/x86_64/) website.
```
sudo yum install ImageMagick-c++-devel
````
On __macOS__ use [imagemagick@6](https://github.com/Homebrew/homebrew-core/blob/master/Formula/[email protected]) from Homebrew.
```
brew install imagemagick@6
```
The unversioned homebrew formula`imagemagick` can also be used, however it has some unsolved OpenMP problems.
There is also a fork of imagemagick called graphicsmagick, but this doesn't work for this package.