ImageMagick is a set of command line utilities to modify, transform, and convert images. The utilities are available for all major OSes.

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Converting images of different dimensions into a gif with maximum dimensions

I have a set of images for an animation, but not all of the dimensions are the same. Some may be 100x100, others might be 99x105, a few with 110x100, and so on. If I did a simple convert *.png ...
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460 views

transparent gradients with graphicsmagick

I'm trying to create a gradient that goes from transparent to some color. With imageMagick you can do that with (taken from the documentation): convert -size 100x100 gradient:none-firebrick ...
2
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1answer
104 views

Unpaper only processing first page?

I'm trying to use unpaper to process some PDFs that I have. But unpaper only seems to process the first page everytime. I'm using Mac OS X Yosemite. Here's my process: I scan in the document in PD ...
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2k views

Convert file to 24bit bitmap

I'm using imagemagick convert to convert this image http://i.imgur.com/P1uqj9K.jpg to a bmp. However for some reason the tool I am using doesn't like the bitmap. If I save the image as a png and ...
2
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1answer
442 views

Does imagemagick support image scaling algorithms related to depixelization

I am currently using this plugin for Paint.NET that provides a number of image filtering functionality. http://forums.getpaint.net/index.php?/topic/23601-2d-image-scaling-algorithms/ I was looking at ...
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169 views

Updating libpng on Ubuntu

I had a need to run the Ubuntu libpng utility convert, and when I did I got an error message that my version of libpng was out of date and had to be updated. So, I went the usual route of apt-get ...
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293 views

Using `imagemagick convert`, how do I resize an image and convert it to a centred A4 sized pdf while retaining image quality?

When I convert a png-image to pdf, I have been using convert in.png -page A4 out.pdf to get a pdf where the image quality is retained and the image is aligned to the bottom left corner by default. To ...
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1answer
360 views

exiftool width and height of resized images not match the new sizes

$ convert original.jpg -resize 50% test.jpg $ exiftool test.jpg ... Exif Image Width : 1200 Exif Image Height : 1600 Image Width : 600 Image Height ...
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230 views

Can't get ImageMagick -fft to execute in Command Prompt

I downloaded ImageMagick (Windows 7 64-bit) and FFTW, and I can do simple commands but I can't use the -fft option. Commands are from the ImageMagickv6 examples. None of the examples with -fft work. ...
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400 views

imagemagick draw text word wrapping

I have this script, which writes text to images. echo \\n"List? {y/n}" read cont if [ "$cont" = "y" ] || [ "$cont" = "Y" ] then rm -rf sponsors.txt ls *.jpg *.png *.gif -1 > sponsors2.txt ...
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1k views

Macports Imagemagick Install for PHP

I'm trying to install Imagick for PHP via Macports and the PECL extension, based on the guide here: sudo port install ImageMagick sudo pecl install imagick I entered the opt/local path and setup ...
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207 views

ImageMagick command sometimes fails

I have an ImageMagick command that is something like this: convert "/path/to/photo" -set comment "(c) my company" -resize WxH miff:- | composite -dissolve 30 -geometry +40+138 -quality 80 ...
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641 views

Imagemagick convert creates monochrome output only

I have a book scan as a pdf. When I open it with Adobe Reader, it looks like grayscale. When I open it with IrfanView, it looks like grayscale, and the Information option tells me that the image is ...
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1answer
939 views

Tesseract OCR - Newbie Questions!

I just installed Tesseract OCR and was able to convert a TIF image to its corresponding text. The application seems fairly easy to use, but I am struggling finding the documentation that will help me ...
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48 views

Using imagemagick to crop and combine A4 sized PDFs

I have to make a photocopy of my driving license. I've scanned the front and back sides, and generated a PDF for each side (and a PNG as well just in case). So far, so good. Imagemagick reports: $ ...
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254 views

How to obtain a version of ImageMagick compiled for OpenCL (Linux)

For reasons I do not understand, ImageMagick requires a special compilation to make use of OpenCL drivers on the host machine. Does anyone know of a place where I can obtain a Linux version compiled ...
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324 views

Imagemagick batch converting memory overload

I must to convert about billion of images from jp2 to jpg... I create such .bat for /d %%d in (*) do ( for %%f in ("%%~d\*.jp2") do ( convert -limit memory 0 -limit map 0 "%%~ff" -quality 25 ...
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27 views

Generating a thumbnail reel from a video with image magik and/or ffmpeg

I read a post detailing how you can call ffmpeg from image magik. I want to learn how to: Take a series of screenshots from a video, store them in memory (dont' write all images to disk) at the end ...
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11 views

Align baselines of fonts using ImageMagick

Using ImageMagick I would like to create an image with a headline and tagline having a different font and size. It is important that the baselines are aligned. Below is an example of what I mean: ...
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47 views

Does Image Magick offer a streaming API?

I have a Node.js server (irrelevant) that does image manipulation with ImageMagick. Basically, I can POST an image to the server and it will respond with the transformed image. Right now I’m just ...
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70 views

Disk space used by ImageMagick/Ghostscript

I have a 200 MB PDF file input.pdf consisting of scanned images, whose resolution I want to reduce. Under Windows 7 the following command convert -density 200x200 -quality 60 -compress jpeg ...
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615 views

Merge two pdf files side by side in command line

I have got two pdf files with same number of pages and want compare each page with the corresponding page in the other file. For this I would like to merge say page 1 of File1.pdf with page 1 of ...
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83 views

how to manage images in emacs org mode

I am considering switching from zim wiki to org mode for managing collection of web page pieces. Typically it includes images and texts I copied from a web browser. The question: 1 how to insert ...
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1k views

Using avconv to convert an animated gif to mp4 with sound

I want to convert an animated gif and a midi (music) file into a mp4 video. Is it possible? I saw a lot of topics on documentation, foruns and stackexchange sites, but I didn't find. It works with 1 ...
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360 views

How to apply clut (Color Lookup Table) using ImageMagick command line

IamgeMagick dcouments its -clut option as "Replace the channel values in the first image using each corresponding channel in the second image as a color lookup table...This operator is especially ...
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378 views

ImageMagick delegate library error

I have recently installed ImageMagick and I am trying to use it to convert postscript files to .gif images. I ran the post installation test: '/usr/local/bin/convert logo: logo.gif' This ...
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62 views

ImageMagick: is there a way to get the same PNG from the same image on multiple platforms?

I have a script for converting game assets to multiple resolutions, via imagick, and when I run the same imagick commands on Mac and Windows (with the same version of imagick - ImageMagick 6.8.7-2), ...
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386 views

Using imagemagick or gifsicle to output GIF with specific filesize?

I have been following this online guide to convert a small video clip into image frames, then combine them together into a single animated GIF. The problem I'm having is that each GIF tends to be ...
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74 views

Gif output not as smooth when selecting a sequence of files individually

I have a sequence of images 001.png 002.png 003.png that I would like to combine into an animation. I used the following command convert -dispose 3 -loop 0 *.png out.gif And it looks ok. However, ...
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238 views

Convert SVG that has an Arabic text to png (or any raster)

I have an SVG file which has Arabic texts. When I tried to convert it to a raster format Arabic text became unicode signs. Latin letters are allright. I tried imageMagick and rsvg-convert. Both are ...
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357 views

can I remove imagemagick by deleting directories?

I posted this to StackOverflow, but probably belongs here. I'm on OSX Lion, trying to get back to basics so I can run RMagick in Rails 3.0, using rvm. When I tried to add the RMagick gem to Rails ...
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649 views

Installing an OTF Font under Ubuntu Server

I have an OTF Font I want to use with ImageMagick. Last time I had to install it on other machines, I copied it into /usr/share/fonts and ran fc-cache, then, convert -list font | grep "myfont" found ...
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955 views

From Illustrator to png with the help of ImageMagick

Currently I save my files in Illustrator as .pdf files so that I can use ImageMagick to manipulate the resulting images programatically (cropping, adding borders, resizing, etc) and convert them to ...
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12 views

Why doesn't ImageMagick's convert actually convert my pdf on docker python:3.5 image?

If you do this: $ docker run --rm -it python:3.5 # apt-get update && apt-get install -y imagemagick wget # convert --version Version: ImageMagick 6.8.9-9 Q16 x86_64 2015-01-05 ...
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12 views

how to merge two similar image's differences into one image in terminal?

I don't know if this has been done before, can we merge two pictures in terminal. when I say merge I mean merge their differences and keep the common parts and NOT merge them into a bigger size ...
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10 views

Helping with pdf border

Thanks for help in Advance, I have pdf and I want to add border in that pdf with white color, i.e left,right,top ,bottom can someone hep me regarding this I am comfortable with ghostscript
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49 views

Composite images with ImageMagick convert

I am trying to automatically compose (overlay) two PNG image files. I have a background image and a mostly transparent overlay of the same dimensions. The latter contains text on transparent ...
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21 views

ImageMagick resize/extend PDF results in illegible text

I am trying to extend the PDF’s left margin, and was trying to use convert. However, I can’t get it to work properly without losing the text quality; see screenshot below. The text comes out ...
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11 views

Per-image settings in motage

I'm trying to create a composite image with imagemagick's montage, where I can specify a per-image -mattecolor. For example: $ montage -mattecolor red \ -label aaa A.jpg \ -label bbb B.jpg I'd ...
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27 views

How can I combine images into one image centered vertically in ImageMagick?

I've got images and I would like to merge them into one vertically as show pic. Here is an example of the desired effect: What I get after using a command like this: montage red.png blue.png ...
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11 views

How to create new transparent image with text that will have size of text?

For now I am using: convert -size 500x200 xc:transparent -font "myfont.ttf" -pointsize 300 \ -gravity center -draw "text 0,0 'abcdefgh'" png:- > out.png The problem is that I don't now how much ...
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46 views

Layer 2 images in Imagemagick without affecting colors due to transparency and gradient

I've been working to add some text from a file to an image using Imagemagick. The text inserts into the correct location, but the text color is getting modified from gold to a slightly muddled gray ...
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184 views

Calibrating a flatbed scanner with an IT8 target?

I was trying to calibrate a flatbed scanner with an IT8 target. The problem is that most things turn noticeably greenish (by that I really mean a huge difference in the a* value of Lab*). More ...
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16 views

ImageMagick input with both page and geometry using bracket notation

Example of what I'm attempting: convert :/path/to/file.gif[2][200x200] png:-, where [2] is the frame and [200x200] is the geometry. Understandably, the above does not work -- I presume ImageMagick ...
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1k views

Creating and splitting large multipage TIFF images

I need to both create and split multipage TIFF images, ranging from 2 to almost 100 pages (A4, 300 dpi, 2500×3500 px). The job is performed periodically by a script on an x64 Linux server. Currently ...
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280 views

Hue/saturation adjustment by ImageMagick

When I scan a old book that is turned yellow, I remove the yellow by using Photoshop like this. open Adjustment -> Hue/Saturation select Yellows and set Lightness to 100 select Reds and set ...
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274 views

ImageMagick video filter for FFmpeg

I'd like to apply some non-trival video operations on a per-frame base. So far, I've been using shell scripts + ImageMagick + FFmpeg, decomposing the video into individual frames on disk, processing ...
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175 views

batch split note scans with automatic recognition of parts in page

I regularly use paper to make notes and concepts for most things, work and others. To be quick when having an idea I note them one after another, just to make sure I find things later, I use paper ...
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143 views

PhotoViewer.dll for Windows XP

I know it comes with Windows 7, but is there an equivalent standalone module for XP's "Picture and Fax Viewer"?
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571 views

Comparing two images: get the XY location of any differences found

I'm trying to compare two images using the ImageMagick Compare module; everything seems okay, but I want to know the exact XY locations of the 'differences' found. How can I get this? I already ...