similar to: Using Paperclip::Processor and RMagick to sharpen my thumbnails

I''m working on a photo gallery and I''m using File_column to handle the uploads of the files and create my thumbnails, but does anyone here have any idea how to have a watermark (opaque text maybe) placed over one of the versions? Any ideas on how to go about this would be great. Even if it''s just straight RMagick code, that would be fine too. Thanks in advance for the

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

I''ve based my code on the Agile example for uploading files, pages 362-365. I''ve successfully loaded the Picture object to the database, but I come unstuck when trying to replicate this for a thumbnail version of the original image: thumbnail = Thumbnail.new thumbnail.name = ''thumbnail_'' + @picture.name.to_s

Hi, I need to create a preview of a PDF upload to a CMS I''m building. Does anyone know how to create a thumbnail of the first page of a PDF using RMagick? Any ideas welcome, ~ Mark -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk"

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 see that the SVN version of the excellent file_column plug-in can create thumbnails using the url_for_image_column helper. This uses Rmagick to create the thumbnail... Quick question... Let''s say the file is a TIFF image - can the helper create a JPG version of the thumbnail for display in the browser? Curious if the plug-in can handle that transform with some creative use of the

hi guys, I have been trying to install Rmagick on ubuntu karmic koala for a day. Yes, ImageMagicK has already been installed and works great with paperclip and a few other perl scripts I have (which uses Image::Magick). The following is what the execution looks like when I tried to install rmagick ( " gem install rmagick" ): -------------------- Extract start

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 have desperately searched the web about how to apply watermarks to images in RoR Has anyone been able to apply watermarks to pictures using ruby? Any tips are very much welcomed, Thanks, Roland -- Posted via http://www.ruby-forum.com/.

Hi, everyone! I have been recently hit by ImageMagick/Rmagick memory leak issues. I know I can lesson the problem by manually starting up GC each time I use Rmagick library but ImageMagick seems to use way too much memory nevertheless. (on shared hosting setup anyway) Is there a decent replacement for ImageMagick library? I used to think ImageMagick was quite efficient because its

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 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

Hi, Currently I''m using the file_column plugin to upload images and save multiple copies of each at 3 different resoltions: file_column :name, :magick => { :versions => { "thumb96" => "96x150>", "medium250" => "250x400>", "large480" => "480X640>" } } I am wondering if

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 know that Zed has made mention of the fact that using RMagick with mongrel and rails is a bad thing. I''m currently using FlexImage (which in turn uses RMagick) on my application and really haven''t had too many problems. We get a restart for memory usage every 8-10 hours on one mongrel of twelve running, but I''m not sure if that''s an RMagick issue. Either way,

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

I read the 13th recipe in the book "Rails Recipes" from Chad Fowler. I install with gem the gruff-library (gem install gruff). After the installation, I download the "rmagick-win32-1.13.0_IM-6.2.9-3.zip" file and install it on my win32-machine. It was successfully! So, I create a controller with script/generate. In a method, which I wrote after the creation, I''ll make

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...

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 =

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