MiniMagick is a Ruby wrapper for ImageMagick command line.
MiniMagick is a Ruby wrapper for ImageMagick command line. It gives you access to all the commandline options ImageMagick has.
Official site: http://rubyforge.org/projects/mini-magick
Questions tagged [minimagick]
342 questions
7
votes
2 answers
Can not allocate memory
For some reason processing images (carrierwave + minimagick) stops working about a week after the service is started. There is no unusual increase in traffic or upload processes. Once the ENOMEM error occurs everything seems to 'lock up' and any…
Florian
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7
votes
4 answers
FloatDomainError (Infinity)
I use carrierwave and mini_magick to upload images. In development everything is fine, but in production it raises FloatDomainError (Infinity) when i try to upload an image. I have several projects hosted at the same server and everything is fine…
Sergey Kishenin
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7
votes
3 answers
Get image dimensions using Refile
Using the Refile gem to handle file uploading in Rails, what is the best way to determine image height and width during / after it has been uploaded? There is no built in support for this AFAIK, and I can't figure out how to do it using MiniMagick.
Chris Edwards
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7
votes
0 answers
Rails 4 CarrierWave (master) and MiniMagick: change file format
I'm using Rails 4.2, CarrierWave master branch, and MiniMagick 4.3.6 (also using the CarrierWave::MiniMagick module).
According to the CarrierWave Docs it is possible to change the format of a file during the upload/processing stage.
However, I do…
Dan L
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7
votes
1 answer
No such file or directory - identify with Mini Magick
my rails app was running smoothly before I had another person re-do my front-end UI. I've been trying to resolve this error for 3 days now. Here is the error:
No such file or directory - identify
Extracted source (around line…
ShaunK
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6
votes
2 answers
Specifying geometry for a composite with mini_magick
I am basically trying to write this command with mini_magick.
gm composite -compose Copy -geometry +0+210 note-transparent1.png note-rugby.png note-rugby-e.png
This is my code:
image = MiniMagick::Image.open("note-transparent1.png")
result =…
rmw
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6
votes
1 answer
How to decode base64 image file with mini_magick in Rails?
In our Rails 4 app, the image is uploaded to server in a base64 string:
uploaded_io = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2....."
We would like to to retrieve the content type, size and so on and save the file as image file on file…
user938363
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6
votes
1 answer
Rspec process hangs at different places, process cannot be killed. How to diagnose?
In a rails application I'm developing (on OS-X), I'm finding running the test suite via rspec locking up increasingly frequently. It does not happen every time. I've tried adding --format documentation when running the suite to see if it happens at…
MAckerman
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6
votes
2 answers
Carrierwave + MiniMagick - How to squash animated GIFs to their first frame?
Anyone know how to squash animated GIFs down to their first frame using Carrierwave + MiniMagick?
Alistair Holt
- 1,432
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6
votes
2 answers
How to crop image on upload with Rails, Carrierwave and Minimagick?
I have read:
Undefined Method crop! Using Carrierwave with MiniMagick on rails 3.1.3
Carrierwave Cropping
http://pastebin.com/ue4mVbC8
And so I tried:
# encoding: utf-8
class ProjectPictureUploader < CarrierWave::Uploader::Base
include…
Leonid
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5
votes
1 answer
Convert a pdf to png using mini_magick in Ruby on Rails
Background
I retrieved a pdf in binary form from an API call:
base_64_binary_data = @response_label[:generate_label_response][:response_shipments][:response_shipment][:labels][:label][:content]
@pdf_file = File.open('label.pdf', 'wb') do |file|
…
Code-MonKy
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5
votes
1 answer
Tesseract not reading certain numbers
I started off writing a simple script to read data from an image. Here is my Ruby code that uses RTesseract to read it:
require 'rtesseract'
require 'mini_magick'
RTesseract.configure do |config|
config.processor = "mini_magick"
end
image =…
dev
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5
votes
1 answer
mini_magick thumbnail with gravity center
I want to create a padded thumbnail, like described here
This command works:
convert src.png -thumbnail '200x200>' -gravity center -extent '200x200' dst.png
But this ruby code is not working: gravity is ignored
require 'mini_magick'
image =…
Alessandro Pezzato
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4
votes
3 answers
Retrieving the hex code of the color of a given pixel
I have used resize_to_fill down to a [1,1] size thus reducing the image to a single pixel containing what is basically the average color of the entire image (provided the image does not have a huge disparity between height and width, of course).
Now…
ken-guru
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- 4
4
votes
1 answer
Resizing an image with mini_magick
My service has both a web version and an iPhone version. On the iPhone, we ensure that users submit a square version by having it crop when it uploads. We are allowing uploads on the website as well, but we do not have such a feature.
As such, I…
meow
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