Tag: imagemagick

Carrierwave RMagick没有删除转换为jpg的透明度: 我正在尝试上传PNG并保存一堆缩略图。缩略图都应该是JPG，没有任何透明度。不知何故，文件保存为jpg但它具有透明度…… 这是我的上传者： # encoding: utf-8 class WinePhotoUploader ‘jpg’ version :croppable, :if => :new_upload? do process :resize_and_pad => [1200, 1200, ‘white’] end version :show, :if => :new_upload? do process :resize_to_fit => [nil, ‘425’] end version :general, :from_version => :show, :if => :new_upload? do process :resize_and_pad => [150, 375, ‘white’] end version :thumb, :from_version => […]

Rails 4 – Imagemagickresize以填充空间: 我有缩略图产品图像，具有不同的宽高比和大小。这是一个市场应用程序，因此卖家将加载各种尺寸的图像。我想resize以使它们适合我所拥有的200×200缩略图网格。我在Rails 4，Paperclip 4.1，Imagemagick 6.8.9 基于早期版本的IM，这是我想要的效果 – http://www.imagemagick.org/Usage/resize/#space_fill – 填充空白以适应200×200网格。请在我的演示站点上查看对齐问题 – mktdemo.herokuapp.com 我的型号代码。我尝试使用一些IM选项，但没有让它按照我想要的方式对齐： has_attached_file :image, :styles => { :medium => “200×200”, :thumb => “100×100” }, :default_url => “” :convert_options => {:medium => ???} 我的html.erb有bootstrap的“缩略图”类。我不想在css中使用固定像素大小，因为它们没有响应。我也尝试了一些JS插件，但它们也没有按预期工作。

rmagick有一种方法可以在内存中转换图像: 来自Rmagick指南：将图像转换为另一种格式将图像转换为另一种格式就像将图像写入文件一样简单。 ImageMagick使用输出文件名suffix (“.jpg” for JPEG, “.gif” for GIF, for example)或prefix (“ps:” for PostScript, for example)以确定输出图像的格式。有没有办法在内存中转换图像？

在rails应用程序中使用rmagick时出错: 我在尝试运行rails应用程序时遇到以下错误： – /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/rmagick-2.12.2/lib/RMagick2.so:libMagickCore.so.4：无法打开共享对象文件：没有这样的文件或/opt/ruby-enterprise-1.8中的目录 – /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/rmagick-2.12.2/lib/RMagick2.so（LoadError）。 7-2010.02 / lib / ruby / site_ruby / 1.8 / rubygems / custom_require.rb:36:in require’ from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in require’from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/ dependencies.rb：354：in new_constants_in’ from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in来自/opt/ruby-enterprise-1.8.7的’from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/rmagick-2.12.2/lib/RMagick.rb:11 -2010.02 / lib / ruby / site_ruby / 1.8 / rubygems / custom_require.rb:36:in gem_original_require’ from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in gem_original_require’ from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in require’from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby /gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in require’ from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:354:in new_constants_in’from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib […]

回形针错误 – NotIdentifiedByImageMagickError: 我正在尝试用回形针将图像上传到aws s3，但是我收到了这个错误 Command :: file -b –mime ‘/var/folders/d_/k4_ps9hj5fj_3df5t210vjym0000gn/T/2611a2396a4af6938e5c5867c8bb409f20140515-7787-1u773ft.jpg’ Command :: identify -format ‘%wx%h,%[exif:orientation]’ ‘/var/folders/d_/k4_ps9hj5fj_3df5t210vjym0000gn/T/2611a2396a4af6938e5c5867c8bb409f20140515-7787-1rep3kt.jpg[0]’ 2>/dev/null [paperclip] An error was received while processing: # Command :: identify -format ‘%wx%h,%[exif:orientation]’ ‘/var/folders/d_/k4_ps9hj5fj_3df5t210vjym0000gn/T/2611a2396a4af6938e5c5867c8bb409f20140515-7787-1rep3kt.jpg[0]’ 2>/dev/null [paperclip] An error was received while processing: # Command :: file -b –mime ‘/var/folders/d_/k4_ps9hj5fj_3df5t210vjym0000gn/T/2611a2396a4af6938e5c5867c8bb409f20140515-7787-kfejir.jpg’ 在我的模型中，我设置了这些样式 has_attached_file :photo, :storage => :s3, :s3_credentials => “#{Rails.root}/config/s3.yml”, :path => […]

Rails Paperclip插件 – resize的样式选项: 所以，我想将图像调整为FIXED宽度，但比例高度。我一直在尝试各种各样的运营商： 380×242＃380×242> 380！x242 380×242 < 它们都没有达到预期的效果。有帮助吗？我希望它填充或resize为380宽度，然后调整高度/缩小高度，使其缩小或缩小图像大小为380宽度。

Windows 7上的Paperclip :: Errors :: NotIdentifiedByImageMagickError: 我将通过Mattan Griffel的“One Month Rails”（ http://onemonthrails.com/ ）课程。我正在尝试使用paperclip gem上传图像。初始安装和使用情况很好，直到他添加了一行来减少图像的大小。这被放置在app / models / pin.rb中，如他的教程中所示： has_attached_file :image, styles: { medium: “320×240>” } 它一直有效，直到样式：{}部分被添加。我还更新了我的部分传递：medium方法。我正在使用：paperclip（3.4.1），可卡因（0.5.1）和rails（3.2.12）。我已经看到其他post用自制软件修复了，但我在Windows 7机器上，我相当确定不适用。如果我需要发布任何其他内容，请告诉我。

如何在Heroku上使用最新版本的Imagemagick？: Heroku Cedar-14堆栈目前运行的ImageMagick版本（6.7.7-10）已有近一年的历史： Running `identify -version` attached to terminal… up, run.8227 Version: ImageMagick 6.7.7-10 2014-03-06 Q16 http://www.imagemagick.org Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC Features: OpenMP 我想使用-canny选项在图像中执行边缘检测，但这只是在ImageMagick的更高版本中引入的。 Heroku上唯一可用的ImageMagick构建包不适用于Cedar-14堆栈： https ： //github.com/mcollina/heroku-buildpack-imagemagick 有没有办法在Heroku上使用ImageMagick v6.8.9-0或更高版本？提前致谢！

Spree :: Admin :: ImagesController #create中的Paperclip :: NotIdentifiedByImageMagickError: 我试图第一次设置Spree。一切顺利，直到我上传图片。我在Mac OSX Mountain Lion上使用自制程序安装了Imageamgick。上传任何图像会给我以下错误。 Paperclip::NotIdentifiedByImageMagickError in Spree::Admin::ImagesController#create Command :: identify -format %wx%h :file [paperclip] An error was received while processing: # Paperclip::NotIdentifiedByImageMagickError (/var/folders/fq/9g_6hmg513g6137rb6sbghw00000gn/T/stream20121005-26943-16883d4.png is not recognized by the ‘identify’ command.): paperclip (2.7.1) lib/paperclip/geometry.rb:29:in `from_file’ spree_core (1.2.0) app/models/spree/image.rb:35:in `find_dimensions’ activesupport (3.2.8) lib/active_support/callbacks.rb:405:in `_run__1794851703999987262__post_process__1580526166879208018__callbacks’ 当我从命令行运行识别时，我得到以下输出 Image Settings: -alpha option on, activate, off, deactivate, set, […]

我无法安装回形针: 我是rails的新手，我需要安装Peperclip（ https://github.com/thoughtbot/paperclip ），我不能，我看了我能找到的每个教程，但我找不到错误。我安装了ImageMagick并遵循github的所有指令。当我跑： rails generate paperclip club imagen 我懂了 /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/generators/actions/create_migration.rb:13:in `migration_file_name’: protected method `migration_file_name’ called for # (NoMethodError) from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/generators/actions/create_migration.rb:34:in `existing_migration’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:112:in `invoke_with_conflict_check’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:60:in `invoke!’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/actions.rb:94:in `action’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/generators/migration.rb:36:in `create_migration’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/generators/migration.rb:65:in `migration_template’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/paperclip-4.1.1/lib/generators/paperclip/paperclip_generator.rb:16:in `generate_migration’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/command.rb:27:in `run’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all’ from /Users/Moski/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each’ […]