Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Introduction                The absolute basics   Let’s get a little more advanced                                  Introd...
Introduction                The absolute basics   Let’s get a little more advanced         1 Introduction         2 The ab...
Introduction                The absolute basics   Let’s get a little more advanced Introduction         ImageMagick®      ...
Introduction                The absolute basics   Let’s get a little more advanced Did I mention extremely versatile?     ...
Introduction                The absolute basics   Let’s get a little more advanced Overview of some of the binaries       ...
Introduction                The absolute basics   Let’s get a little more advanced Conversion of file formats         Binar...
Introduction                The absolute basics   Let’s get a little more advanced Identifying images         Binary to us...
Introduction                The absolute basics   Let’s get a little more advanced Changing the size of an image         B...
Introduction                The absolute basics   Let’s get a little more advanced Adding a frame to an image         Agai...
Introduction               The absolute basics  Let’s get a little more advanced Making a screenshot          For making s...
Introduction               The absolute basics  Let’s get a little more advanced A real story          For a project, we n...
Introduction               The absolute basics  Let’s get a little more advanced A real story          But we only had .pd...
Introduction               The absolute basics  Let’s get a little more advanced A real story          So for each .pdf-fil...
Introduction               The absolute basics  Let’s get a little more advanced The time saving script          Now what ...
Introduction               The absolute basics  Let’s get a little more advanced References               http://imagemagi...
Upcoming SlideShare
Loading in …5
×

Getting started with Imagemagick

3,442 views

Published on

A very quick introductory course on ImageMagick. Part of our standard training courses for offshore software developers at Zeropoint.IT

Published in: Technology, Art & Photos
  • Dating for everyone is here: ❶❶❶ http://bit.ly/2Q98JRS ❶❶❶
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • Sex in your area is here: ❤❤❤ http://bit.ly/2Q98JRS ❤❤❤
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here

Getting started with Imagemagick

  1. 1. Introduction The absolute basics Let’s get a little more advanced Introduction to ImageMagick Bart Van Loon 2nd February 20121 / 13 Bart Van Loon Introduction to ImageMagick
  2. 2. Introduction The absolute basics Let’s get a little more advanced 1 Introduction 2 The absolute basics 3 Let’s get a little more advanced2 / 13 Bart Van Loon Introduction to ImageMagick
  3. 3. Introduction The absolute basics Let’s get a little more advanced Introduction ImageMagick® ImageMagick is an Open Source software suite to create, edit, compose, or convert bitmap images. ImageMagick: mind the spelling, and camel-case Open Source: Apache 2.0 license (GPLv3 compatible) software suite: more than ten binaries create, edit, compsose or convert: extremely versatile tools bitmap images: over 100 formats supported, but all bitmaps3 / 13 Bart Van Loon Introduction to ImageMagick
  4. 4. Introduction The absolute basics Let’s get a little more advanced Did I mention extremely versatile? features : translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bezier curves, . . . bindings : MagickCore (C), MagickWand (C), ChMagick (Ch), Magick++ (C++), JMagick (Java), L-Magick (Lisp), PascalMagick (Pascal), PerlMagick (Perl), MagickWand for PHP (PHP), PythonMagick (Python), RMagick (Ruby), TclMagick (Tcl/TK), ... platforms : runs on all major operating systems We will focus on simple command line usage.4 / 13 Bart Van Loon Introduction to ImageMagick
  5. 5. Introduction The absolute basics Let’s get a little more advanced Overview of some of the binaries animate : animates an image or image sequence compare : annotates the difference between images composite : overlaps one image over another conjure : executes scripts in the Magick Scripting Language convert : converts between image formats and much more display : displays an image or image sequence identify : describes the characteristics of image files import : saves any visible area and outputs it as an image file mogrify : is like convert but works on the original image file montage : creates an image by combining several images5 / 13 Bart Van Loon Introduction to ImageMagick
  6. 6. Introduction The absolute basics Let’s get a little more advanced Conversion of file formats Binary to use is convert. Example: $ convert image.png image.jpg It guesses the required format from the target filename extension.6 / 13 Bart Van Loon Introduction to ImageMagick
  7. 7. Introduction The absolute basics Let’s get a little more advanced Identifying images Binary to use is identify. Examples: $ identify pic.jpg pic.jpg JPEG 170x100 170x100+0+0 8-bit DirectClass 7.75KB 0.000u 0:00.000 $ identify pic.png pic.png PNG 960x191 960x191+0+0 8-bit DirectClass 104KB 0.000u 0:00.0007 / 13 Bart Van Loon Introduction to ImageMagick
  8. 8. Introduction The absolute basics Let’s get a little more advanced Changing the size of an image Binary to use is convert or mogrify. The switch is -scale: $ convert -scale 100x250 pic.png png small.png or $ mogrify -scale 100x250 pic.png The -scale switch takes a “geometry” as argument. A simple “geometry” looks like <W>x<H> where <W> is a width; and <H> is a height. One of both can be ommitted!8 / 13 Bart Van Loon Introduction to ImageMagick
  9. 9. Introduction The absolute basics Let’s get a little more advanced Adding a frame to an image Again, convert (or mogrify) can take care of this. Example: $ convert -border 2 -bordercolor black pic.png frame.png More sexy example: $ convert -caption "My latest Polaroid" pic.png -gravity center -background black +polaroid polaroid.png9 / 13 Bart Van Loon Introduction to ImageMagick
  10. 10. Introduction The absolute basics Let’s get a little more advanced Making a screenshot For making screenshots, import is a great tool. Example uses: $ import window.jpg # now click on a window with your mouse $ import -rotate 30 area.png # now draw a rectangle with your mouse $ sleep 5; import -window root all.tiff10 / 13 Bart Van Loon Introduction to ImageMagick
  11. 11. Introduction The absolute basics Let’s get a little more advanced A real story For a project, we needed drawings of various pieces of clothing. Our script expected a bunch of .png-files like11 / 13 Bart Van Loon Introduction to ImageMagick
  12. 12. Introduction The absolute basics Let’s get a little more advanced A real story But we only had .pdf-documents that looked like Hundreds of them. . .11 / 13 Bart Van Loon Introduction to ImageMagick
  13. 13. Introduction The absolute basics Let’s get a little more advanced A real story So for each .pdf-file we had to: convert the .pdf-files to the .png-format; cut the original images in two to separate the drawings of the front side from those of the back side of the clothing; set all the images on a transparent background; and fix the filenames of the resulting .png images. We did this with a simple ImageMagick script (the loop and file renaming was taken care of by bash) which saved both a developer and a designer a day of boring, repetitive work.11 / 13 Bart Van Loon Introduction to ImageMagick
  14. 14. Introduction The absolute basics Let’s get a little more advanced The time saving script Now what would this script have looked like, you think?12 / 13 Bart Van Loon Introduction to ImageMagick
  15. 15. Introduction The absolute basics Let’s get a little more advanced References http://imagemagick.org http://www.soton.ac.uk/~fangohr/computing/imagemagick.html13 / 13 Bart Van Loon Introduction to ImageMagick

×