Image Manipulation

Manipulate images with minimal use of memory via ImageMagick

HexaPDF is a pure Ruby library with an accompanying application for working with PDF files. In short, it allows creating new PDF files, manipulating existing PDF files, merging multiple PDF files into one, extracting meta information, text, images and files from PDF files, securing PDF files by encrypting them and optimizing PDF files for smaller file size or other criteria. HexaPDF was designed with ease of use and performance in mind. It uses lazy loading and lazy computing when possible and tries to produce small PDF files by default.

TexPlay is a light-weight image manipulation framework for Ruby and Gosu

Image manipulation in JRuby with ImageScience compatible API

A service for image manipulation - built as an extensible wrapper of Imagemagick which handles caching, c/o the Dragonfly gem.

Convert various files like MS Word, Excel, PowerPoint, Images to PDF and Images. Create PDF and Images from url and raw HTML. Extract and create PowerPoint presentation from PDF. Merge, Encrypt, Split, Repair and Decrypt PDF files. All supported files conversions and manipulations can be found at https://www.convertapi.com/doc/supported-formats

Gem that includes Tinycon (A small library for manipulating the favicon, in particular adding alert bubbles and changing images.)

Image sequence sorting, scanning and manipulation

ripxplore is a command line tool + libraries for manipulating disk images as used by vintage computer emulators. it currently understands common file systems and file formats used with Apple 2, C64, Atari, Tandy CoCo and TRS-80 systems.

a command line tool + libraries for manipulating DSK format images as used by Apple 2 emulators

Simple image manipulation using Apple's Core Image technology. Scale, rotate, flip, convert, overlay, and more.

RComposite (formally Rubyshop) is an RMagick abstraction library to easily manipulate and composite images through the use of a canvas, layers, layer masks, adjustment layers, fill layers, and layer sets (much like in Photoshop)

Read, manipulate, and write images with an emphasis on speed and a low memory profile.

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

Gem to manipulate emoji-sized images

Mainly the product of messing around, this gem comprises Ruby code for a few useful "Amazon Hacks" -- common techniques for manipulating Amazon product URLs and Images. This is mainly useful if you find yourself creating a site where you might link to Amazon product pages and display images for them. Examples of this might include: * Social consumption sites like {All Consuming}[http://www.allconsuming.net/] * Blogs or tumbleblogs with book/music/etc. reviews * Normalizing Amazon links or create associate IDs This GEM is NOT related to using the Amazon Web Services and there is already an excellent gem for that if you need more heavy-duty use of the Amazon website (this gem does not even communicate with Amazon at all). Also, note this gem is meant in the spirit of fun hackery. You can use it to create interesting images from Amazon on demand, but if you are going to use it on a serious website, please consider caching and attributing that image to Amazon (I also have no idea what the official legal policy for using Amazon's book images is). And of course, do not even consider using this for fraud. It is possible to generate "20% off" or "Look Inside!" badges on Amazon images, but this gem does not support that since I can not think of any reason why outside sites would use that. == FEATURES/PROBLEMS:

Makes manipulating images from 1 line of code easier.

Manipulate images with minimal use of memory.

Aspose.PDF Cloud is a REST API for creating and editing PDF files. Most popular features proposed by Aspose.PDF Cloud: PDF to Word, Convert PDF to Image, Merge PDF, Split PDF, Add Images to PDF, Rotate PDF. It can also be used to convert PDF files to different formats like DOC, HTML, XPS, TIFF and many more. Aspose.PDF Cloud gives you control: create PDFs from scratch or from HTML, XML, template, database, XPS or an image. Render PDFs to image formats such as JPEG, PNG, GIF, BMP, TIFF and many others. Aspose.PDF Cloud helps you manipulate elements of a PDF file like text, annotations, watermarks, signatures, bookmarks, stamps and so on. Its REST API also allows you to manage PDF pages by using features like merging, splitting, and inserting. Add images to a PDF file or convert PDF pages to images.

A library to allow photo manipulation on S3 images using RMagick

RComposite is an RMagick abstraction library to easily manipulate and composite images through the use of a canvas, layers, layer masks, adjustment layers, fill layers, and layer sets (much like in Photoshop)

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

Ruby Cloud SDK wraps Aspose.Cells REST API so you could seamlessly integrate Microsoft Excel® spreadsheet generation, manipulation, conversion & inspection features into your own applications. Aspose.Cells Cloud for Ruby enables you to handle various aspects of Excel files, including cell data, styles, formulas, charts, pivot tables, data validation, comments, drawing objects, images, hyperlinks, and so on. Additionally, it supports operations such as splitting, merging, repairing, and converting to other compatible file formats.

Rubyshop is an RMagick abstraction library to easily manipulate and composite images through the use of a canvas, layers, layer masks, adjustment layers, fill layers, and layer sets (much like in Photoshop)

This Compass extension can read SVG files, replace variables in these images (e.g. to manipulate colors) and optionally render them as PNG images.

The intention of this library is to make it easy to build up a structure of nodes which will then be output to a flat file. Imagine using this library as part of a web-app that makes it easy to manipulate images in a structured, visual way (without say, Photoshop).

The Rust Engine is a tiny library written in rust to perform simple images manipulations. For now the library included four functions : - Image converter - Pixel sorting - Brush and Slim : two algorithms that will mess with the given image

Asset Compiler is a collection of Rake task libraries to lighten the load of asset management. These libraries allow you to manage local assets, manipulate images and transport assets to a remote server.

Retag is cli to manipulate docker images in handy way

RailsMagick provides a simple interface with command line ImageMagick for manipulating images.

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick. With jf's fixes and patches.

Helpers for image manipulations

Text manipulator to generate image file with text content

RFits is a set of routines for reading, writing and manipulating FITS (Flexible Image Transport System) files--the standard image file format in astronomy. It is based on the the well-known CFITSIO library provided by HEASARC (http://heasarc.gsfc.nasa.gov/docs/software/fitsio/fitsio.html).

TexPlay is a light-weight image manipulation framework for Ruby and Gosu

Aspose.PDF for Cloud is a REST API for creating and editing PDF files. It can also be used to convert PDF files to different formats like DOC, HTML, XPS, TIFF and many more. Aspose.Pdf for Cloud gives you control: create PDFs from scratch or from HTML, XML, template, database, XPS or an image. Render PDFs to image formats such as JPEG, PNG, GIF, BMP, TIFF and many others. Aspose.Pdf for Cloud helps you manipulate elements of a PDF file like text, annotations, watermarks, signatures, bookmarks, stamps and so on. Its REST API also allows you to manage PDF pages by using features like merging, splitting, and inserting. Add images to a PDF file or convert PDF pages to images.

IMF is a library that provides image manipulation framework for Ruby scripts.

Gem for storing and manipulating raw, uncompressed bitmap images

No network calls, manipulate MNIST data easily. Divided up into train and test, and able to write the images as PNG files

If you are using the Paperclip Gem to store your files but would also like to be able to run manipulate the images in your app, then this is the easiest Gem to get you started. You can use any of the ImageMagick (or even Graphicsmagick) methods. Find a list of image manipulation options here: http://www.imagemagick.org/script/command-line-options.php.

Jekyll plugin for image manipulation

Convert various files like MS Word, Excel, PowerPoint, Images to PDF and Images. Create PDF and Images from url and raw HTML. Extract and create PowerPoint presentation from PDF. Merge, Encrypt, Split, Repair and Decrypt PDF files. All supported files conversions and manipulations can be found at https://www.convertapi.com/doc/supported-formats [Backport to ruby 1.8.7]

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

A set of image manipulation tools built on top of Cairo

NOT WORKING CODE. Designed to make it easy to take a spreadsheet or other tabular data and use it to generate, manipulate, and style connected graphs. Can be used from the command line or as an object model. This gem does not itself perform any rendering, although it contains facilities to drive the Graphviz familly of open source tools to generate images (e.g. gif, jpg, svm).

MIR means 'Manipulations d'Images en Ruby