(as someone else said, imagemagick is a separate suite that needs to be installed on your machine, whereas rmagick is just a ruby wrapper for it) permalink embed It is divided into 4 parts. The first is this page. The second part is a user's guide covering both RMagick and ImageMagick usage and conventions. The third part is a reference guide to the ImageList, Image, and Draw classes.
This guide includes many examples. The fourth part covers Ruby Vector Graphics (RVG). The ImageList class is a subclass of the Array class, so you can use most Array methods to change the images in the imagelist. For example, you can use the method to add an image to the list. Going back to the example, let's make one modification. 1. require 'RMagick' 2. include Magick 3. 4. Ruby bindings for ImageMagick. Contribute to rmagickrmagick development by creating an account on GitHub.
Skip to content. RMagick is an interface between the Ruby programming language and the ImageMagick image processing library. You can find more sample RMagick programs in the example directory.
imagemagick rmagick If you've upgraded imagemagick to version with homebrew recently, you may've noticed that rmagick gem won't work or install anymore. RMagick is an awesome Ruby interface to ImageMagick. RMagick has the ability to write text to an image by creating a 'draw' object and using the annotate method. In general, it is pretty easy to programmatically place the text where you want, but in my Big A Calendar I needed to place white text exactly in the middle of the black dots.
ImageMagick Examples Introductory Notes What is ImageMagick? A NoHoldsBarred Summary ImageMagick is designed for batch processing of images. That is, it allow you to combine image processing operations in a script (shell, DOS, Perl, PHP, etc. ) so the operations can be applied to many images, or as a subsystem of some other tool, There are ImageMagick examples in the the chapter on using nonRuby programs, including its use in batch opticalcharacter recognition.
Programming is so textbased that it's hard to imagine how it possibly conncects to the the world of visuallyfeatured applications such as Photoshop, even though we know that such applications MiniMagick.
A ruby wrapper for ImageMagick or GraphicsMagick command line. Why? I was using RMagick and loving it, but it was eating up huge amounts of memory. Even a simple script would use over 100MB of RAM.
For example, you can enforce memory or execution time limits by setting the following variables in your application's process How to find the" entropy" with imagemagick, preferably minimagic, in Ruby? I need this as part of a larger project, finding" interestingness" in an image so to crop it. I found a good example in Resizing an image with minimagick. You'd just use the resize method from MiniMagick, there's an example on the Github page: Browse other questions tagged rubyonrails ruby imagemagick minimagick or ask your own question.
asked. 6 years, 10 months ago. viewed. 8, 769 times To learn more about what ImageMagick can do, see the ImageMagick documentation and also see the ImageMagick examples page. Installing ImageMagick. If ImageMagick is not installed on your computer yet, skip to the end of this post to see how to install ImageMagick on either Linux, Windows, or Mac OS X.