similar to: Reading image file field data directly into RMagick

Dear all, I have used RMagic to read and write a image while uploading. An animated gif was read from my local machine and was written in my images folder using RMagick. But the animated gif which i read was witten in my folder without animation. What should i do to write the gif image with animation. Here is my code to read and write image while uploading. image = params[:image][:blob]

I get the following error at the browser: ArgumentError in ImagesController#upload invalid geometry string `110×'' ... for the call to change_geometry with an explicit size (''110x'') as the geometry string: def make_thumb (the_img) require ''RMagick'' size = "110x" debugger if ENV[''RAILS_ENV''] ==

I am using RMagick in my app and am having problems in deployment. The deployment machine (Fedora Core 5) can''t find RMagick unless I change the "require" syntax from that used on the dev machine (OS X). And the dev machine doesn''t like the syntax that works on the deployment server! To wit: [OS X] $ script/console Loading development environment. >> require_gem

This piece of code takes an uploaded image and resizes it. It''s a bit nasty at the moment as I am still messing around with it. What I can''t understand is why it works for one iteration but then fails with: zero-length blob not permitted `'' On the line: img = Magick::Image.from_blob(self.image).first I am basically doing this in the controller and it fails on the

hey all, When I do this in script/console I get: >> require ''RMagick'' => true >> include Magick => Object >> f = Image.new(100,100) { self.background_color = "red" } => 100x100 DirectClass 16-bit >> f.crop_resized(50,50) => 50x50 DirectClass 16-bit But in my application I keep getting the same error as if rmagick was not

I''m going to be generating thumbnails from user uploaded images. I''m looking around at the libraries available to do this sort of thing and there are three that look promising. ImageScience -- http://seattlerb.rubyforge.org/ImageScience.html Mini-Magick -- http://rubyforge.org/projects/mini-magick/ RMagick -- http://rmagick.rubyforge.org/ It looks like a lot of people are

The RMagick 2.0.0 beta release has been available for about a month now (http://rubyforge.org/frs/?group_id=12). If you''ve installed it please let me know what your experience has been. I need to hear from users who have had a successful experience before I feel okay about promoting this to production status. Post a note on the RMagick forum at RubyForge

Hi Has anyone had success with setting image resolution with Rmagick. I am resizing an uploaded image with Rmagick, problem is it keeps the original images resolution and I want to change it to 72dpi. <<<<<< code example >>>>>>>>>> # these are the various techniques I have tried when and after reading the file, trying any or all of them does

I have a file rmg.rb: require ''RMagick'' include Magick cat = ImageList.new("prod.jpg") cat.display exit The file prod.jpg is in the same directory as this file above. I execute the following: ruby rmg.rb I get the following output: /usr/lib/ruby/1.8/RMagick.rb:1377:in `read'': unable to open image `'': No such file or directory:

I get the following error when I try to install Rmagic (via gem) on Linux. Do I need to install anyting before installing rmagic? This worked seamlessly on windows. What the best way to install it on Linux. I am on RedHat ES 3. /thanks -thila Attempting local installation of ''rmagick'' Local gem file not found: rmagick*.gem Attempting remote installation of

I''m having an odd problem with RMagick. Consider the following script: ############################################################ require ''rubygems'' require ''RMagick'' Magick::ImageList.new(''granite:'').display ############################################################ Under Linux (Debian in particular), this works fine and

I have successfully installed the following components in my centos server: Ruby 1.8.7 Rails 2.3.8 Gem 1.3.7 paperclip --version ''>= 2.3.3'' will_paginate --version ''>= 2.3.15'' tlsmail --version ''>= 0.0.1'' but facing problem at the time of installation of rmagick --version ''>= 2.13.1'' When I go for

I am having trouble getting Rmagick and File Column working on a new server. I thought I got everything installed but File Column is giving me errors: NameError (uninitialized constant Magick): /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.3/lib/active_support/dep endencies.rb:195:in `const_missing'' /vendor/plugins/file-column-0.3/lib/magick_file_column.rb:8:in

Gem::Ext::BuildError: ERROR: Failed to build gem native extension. /home/anil/.rvm/rubies/ruby-2.0.0-p481/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes checking for gcc... yes checking for Magick-config... no Can't install RMagick 2.13.2. Can't find Magick-config in

i have a rails app with a form that allows uploading an image file. I take the image file and read it into rmagick to verify that it''s an image. For some reason I can''t catch an exception thrown by rmagick inside the app. After an invalid image file is uploaded the process just hangs. I have to kill mongrel and restart to use the app again. img =

Hello, I''m trying to install/update rmagick on a Debian machine using: gem install --local rmagick-2.10.0.gem and get following error: /usr/local/bin/ruby extconf.rb install --local rmagick-2.10.0.gem checking for Ruby version >= 1.8.5... yes checking for gcc... yes checking for Magick-config... yes Warning: Found more than one ImageMagick installation. This could cause problems at

CentOS 4 - (RHEL 4 clone) I have ImageMagick and ImageMagick-development installed as well as libjpeg and libjpeg-devel installed and think that I have the necessary requirements in place. Installing the gem... gem install rmagick results in...(gem_make.out) ruby gem_config.rb install rmagick sh configure Configuring RMagick 1.12.0 checking for gcc... gcc checking for C compiler default

I am using rmagick to convert files stored as a tiff to either pdf or jpg for display to the user. A snippet of test code from the controller follows. It works OK. ( it does need a sanitizer ) require RMagick def pdf @sdoc = Sdoc.find(params[:id]) @fname = ''/var/www/images/'' + @sdoc.fname @nf = Magick::ImageList.new(@fname)

Hi all i copied rmagic gem in my local system cd rmagick-2.12.2.gem bash: cd: rmagick-2.12.2.gem: Not a directory *[root@localhost shyam]# gem install rmagick --local* Building native extensions. This could take a while... ERROR: Error installing rmagick: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes checking for gcc...

Hello All, I''m using FileColumn to store images for a model in my app. I use filecolumn to scale uploaded images to different sizes. This much works fine. I then created a Ruby class for annotating text on the uploaded image. I tested this class from the shell and it works as expected. I then created a plugin for this class and hooked it up to the model. Here''s where I start