ImageMagick is an open source software suite for displaying, converting, and editing raster image files.

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Auto Photo Crop

I want to crop photo black background with command line This command didn't help: convert input.png -trim output.png My image
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1answer
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imagemagick crop images to specific aspect ratio?

Given an image, how do I use imagemagick to resize it to a specific aspect ratio? for example, to an aspect ratio of 2:1
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29 views

Relation of CUPS printer driver to Imagemagick?

Why does installing CUPS automatically install imagemagick ? On this 16.04 64-bit platform there does not, and never will, exist a need for deliberate imageprocessing. foo2zjs handles file conversion ...
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14k views

Resize images to specific height value in ImageMagick?

I've looked around for this, and can't find an easily implemented solution. Currently I'm working on an application that deals with panoramas. As they come out of the batch stitch process, the ...
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1answer
192 views

Feeding avconv one image after another

I have recently taken a bunch of images to create a time-lapse video and using avconv and this was surprisingly easy (after looking up the right command). But now I want to send each image through ...
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1answer
48 views

Mirror photo directories and reduce file size

I backup our family photos to my home Ubuntu 14.04 server, to a Samba directory at /srv/photos. I want to be able to view them by visiting a web page, to browse through them, and have created a php ...
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1answer
153 views

ImageMagick PNG delegate install problems

Ubuntu 14.04: I've downloaded the latest imagemagick source and installed, using option below to configure: root@usve59445:~/im/ImageMagick-6.9.3-7# ./configure --enable-shared --with-png=yes ...
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2answers
48 views

How to crop white spaces in png images?

I have couple png images,I want to submit them in my paper.Example: Below the image there is a plenty of white space.How to extract just the image content and get rid of white space?I am on Ubuntu ...
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43 views

Thunar custom action ImageMagick mogrify not working

I was trying to add this imageMagick command to Thunar custom actions. Here is the code mogrify -alpha off -fill "rgba(211,47,47)" -colorize 100% -alpha on %f What the command do is recolor a ...
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1answer
137 views

How to uninstall ImageMagick completely and reinstall it in a right way?

I am trying to uninstall ImageMagick using sudo make uninstall command but it is not working. It's showing this error : No rule to make targetuninstall'. Stop.` How can i uninstall and reinstall ...
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14answers
17k views

Is there a better way to redact a PDF?

I had to print a couple of PDFs recently to send to someone, but I wanted to redact (black out) a couple small bits of text. A quick google search didn't turn up any tools for this specific purpose, ...
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1answer
71 views

Load full screen image on boot and then close it

Is there any way (maybe with ImageMagik or something) to load a full screen image from a shell script and then close it? I have a media PC that loads kodi, mythTV and a few other things. I was hoping ...
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4answers
54k views

14.04 doesnt have package imagemagick

Usually I had installed Image Magick on my Ubuntu systems with a command like this sudo apt-get install imagemagick or like this: sudo apt-get install php5-imagick Right now I am running the ...
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1answer
40 views

Resizing pictures

Currently running Ubuntu 15.04. I am trying to resize a set of photos which original size of each is 3906*2602. Whether I try with darktable or mogrify specifying 1920*1080 I end up with 1621*1080. ...
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1answer
44 views

I would like to batch re-size images in a terminal

I've got like 500 images to resize, I'm not going to do that in gimp...a terminal solution would suit me best. On ubuntu 14.04. I've read this question on stackoverflow (first posted the question ...
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0answers
103 views

no decode delegate for this image format `JPEG @ error/constitute.c/ReadImage/501._100x100.png

I want to compare uploaded image from database and for that purpose i am using hash comparison and Imagemagick in my code i resize image and convert the type of image to png but when i create the ...
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2answers
193 views

ImageMagick convert and low RAM

Please consider the following command for the imagemagick package: sudo convert -resize 460x200 /path/to/test1.jpg /path/to/test2.jpg Now test1.jpg is a fairly large image (12.5MB), but not unheard ...
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3answers
1k views

Convert emf to PNG image using command line

Is there any command line tool available to convert emf to png images? I tried the convert utility from ImageMagick, but it says decoder for emf not found
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6answers
11k views

convert images to pdf

I have saved multiple images from google books. I wanted to convert them to a single pdf file, where in I need some inputs. The below two images(one png and one jpeg) are two continuous pages. first ...
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1answer
433 views

Update ImageMagick Ubuntu

I would like to update my version of ImageMagick. I originally installed ImageMagick with... sudo apt-get imagemagick Current Version: myapp$ convert -version Version: ImageMagick 6.7.7-10 ...
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1answer
55 views

batch “convert” into jpg with nice alpha flatten

I would like to batch resize and convert to jpg a few png files. But some pixels are transparent, and some are half transparent; I would like the transparent ones to be white, and the half-transparent ...
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0answers
132 views

MiniMagick::Error ImageMagick/GraphicsMagick is not installed

When I SSH into my instance and run convert -version or mogrify -version it recognizes ImageMagick but when I try to upload an image, I am receiving an error. conver -version convert -version ...
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1answer
72 views

concatenate two images one at bottom of other

Using convert command line, we can concatenate img1.png with img2.png: convert img1.png img2.png +append full_img.png However, the command above adds img2.png to the right of img1.png. How to ...
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1answer
56 views

Scale down image such that it fills a square of 100x100

I want to create thumbnails for all images of a folder. I also want the images to fit in a square of 100x100 pixels. So after scaling the images down, while the smaller side needs to be 100 pixels, ...
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2answers
1k views

Convert transparent image sequence to gif

I want to convert an image sequence into a gif animation, and i'm using this: convert -delay 100 -loop 0 image*.jpg animation.gif The problem is that for transparent images i can see other images ...
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2answers
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Resize large images with mogrify (ImageMagick) but leave small images unaffected

Images can be resized using mogrify from the ImageMagick suite: `mogrify -resize 256x256 *.jpg` But this will resize images so that the largest dimension is 256px, including images that are smaller ...
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3answers
521 views

Why do PDF documents open with ImageMagick?

Query shows evince is my default handler. But, double clicking a pdf file opens ImageMagick. A pdf file's Properties shows ImageMagick as the default handler. Why is this happening ? After ...
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2answers
389 views

Kubuntu 15.10 operations get slow or hang until logout

After upgrading to Kubuntu 15.10 from 14.04, I've found that some programs get much slower or completely hang over the course of a few hours of use. (Even though I have 32 GB RAM, an SSD, and a fast ...
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2answers
138 views

Extremely slow display of JPEGs and other images in 15.10

[This question has been marked as a duplicate (relating to graphics drivers) but it is not. I have traced the problem to VMware Workstation 12 running on the system. The problem is triggered by ...
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2answers
515 views

Problem with accents when using ImageMagick or Ghostscript to convert PDF to Image

I am having a problem when converting PDF to Images using ImageMagick or Ghostscript. All accented characters disappear from the converted image. I found a couple of people having the same problem and ...
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0answers
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confused with Image size between Imagemagik and Inkscape

I'm going to resize pictures, when I use Imagemagik and get information about picture through this command: "identify myfile.jpg" it shows it's size is 1648x2312 but when I import that picture to ...
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1answer
59 views

How can I create an animated GIF in Ubuntu using a set of images?

I have a set of about 500 JPEG images. The collective size of the set is about 60 MB and each image has the dimensions 480 x 270. I want to convert these images to an animated GIF. I have attempted ...
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How can I prevent `convert` from causing my system to grind to a halt?

When I run ImageMagick to create an animated GIF from a large number of images, it uses resources such that my i7 system becomes unusable. Within seconds of starting, everything freezes and, ...
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314 views

convert animated gifs to sprite sheets

I have a shell scripting request, I haven’t spent much time figuring it out myself yet, but I want to try and convert animated gifs into sprite sheets for use in SDL game development. I know how to ...
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5answers
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How to add support for the JPEG image format

After installing Imagemagick, I've tested it with jpg image, like this: identify 1.jpg But, I got this result: identify: no decode delegate for this image format `1.jpg' @ ...
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1answer
52 views

ImageMagick works as root, but not with PHP

I am brand-spanking-new at Ubuntu. I have my first webserver at Digital Ocean, build with Serverpilot. I just installed ImageMagick and it works when I SSH into the machine. However, when I try to ...
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1answer
128 views

Calibre cannot load ImageMagick since upgrade to Vivid Vervet

I just upgraded to Ubuntu 15.04 and now Calibre won't work. File "/usr/lib/calibre/calibre/utils/magick/__init__.py", line 15, in <module> raise RuntimeError('Failed to load ImageMagick: ...
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1k views

can't install cpan module Image::Magick

This question still has no solution (scroll down to "EDIT 5" to see the actual status) I am trying to install Image::Magick on my headless Ubuntu server Ubuntu 14.04.2 LTS # cpan install ...
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1answer
22k views

How to crop borders/white spaces from image?

I have a lot of images which have white borders around them. I would like to crop those borders all at once, preferably from command line. I believe that it can be done with ImageMagick, but I ...
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2answers
832 views

blurry images with mogrify & convert

Does anyone know why this image is so blurry? I did a convert from pdf to png and it turned out like that. Before deleting imagemagick and it's entire toolset from software-center most of my image ...
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3answers
8k views

RMagick install problem

I can't install RMagick because of the following dependency problem after trying sudo apt-get install libmagick9-dev (required according to this) on Ubuntu 10.0.4: Note, selecting libmagickwand-dev ...
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4answers
5k views

How can you animate a gif that goes back-and-forth instead of repeating?

I'm animating a gif with Imagemagick, I'm doing animate *.JPG, and that repeats the animation. But I would like it to go do "pic1, pic2, pic3, pic2, pic1" and repeat, so that it goes back and forth. ...
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2answers
2k views

How can I batch convert images to b/w while preserving the folder structure

I want to batch process images but I have a very specific task that I want to do I do not want to change image type I want to make them black and white I want it to create/preserve images and sub ...
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82 views

How can I prevent ImageMagick's convert from locking up my system?

I have a decent 4-core i7 computer with 8 GB of RAM and 45 GB of free SSD space. When I run ImageMagick's convert program on a PDF, it briskly consumes vast amounts of resources such that the computer ...
2
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1answer
881 views

ImageMagick “convert” command cannot use fonts!

convert -size 300x50 xc:none -font Arial -pointsize 20 -gravity center -draw "fill white text 1,1 \"$1\" text 0,0 \"$1\" fill black text -1,-1 \"$1\"" $WATERMARK_FILE Above command results following ...
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Combine multiple images with X and Z coords

I'm working on terrain for a game, and the output I chose in the terrain generation software is 256 1024x1024 tiles that I need to combine into one big .png. I've tried running some image stitching ...
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3answers
5k views

ImageMagick convert can't convert to webp

On Ubuntu 12.04 ImageMagick doesn't seem to support webp. convert flyer.png flyer.webp creates an png file with webp extension. On https://developers.google.com/speed/webp/docs/using is stated that ...
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2answers
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Unable to restore Envince as default pdf viewer

I don't know why, but somehow "ImageMagick" gained the status of being my default PDF viewing application (I didn't set it manually, maybe it came with the installation of iscan or plex). Now, when I ...
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2answers
11k views

Having problems installing ImageMagick on Ubuntu 14.04

Trying to install imagemagick since 1.5 hrs but with no luck. sudo apt-get install imagemagick php5-imagick But nothing is happening. I tried to cross check with if (!extension_loaded('imagick')) ...
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4answers
1k views

Where to find Magick++ API?

I'm on Ubuntu 14.04, which has ImageMagick 6.7.7-10 installed by default. I need to use Magick++, a C++ API for ImageMagick, in a C++ project, but I have no idea where it's located. How can I tell if ...