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

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Ubuntu 16.04 Imagemagick convert jpg webp

I was wondering about the following; I use the following command to find .jpg files in (sub)directorys and convert (mogrify) them to .webp files. find . -name '*.jpg' -execdir mogrify -format webp {...
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21 views

How can i compile ImageMagick with nvcc?

I wrote a small code in cuda along with ImageMagick library support as #include <stdio.h> #include <cuda.h> #include<Magick++.h> #define NUM_BLOCKS 10 #define BLOCK_WIDTH 1 using ...
6
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2answers
730 views

How to remove ImageMagick without breaking its dependencies?

I want to remove the pre-installed ImageMagick from my Ubuntu 16.04 LTS. Uninstalling it also removes CUPS and other dependent packages which I want to keep on my system. Is there a way to remove ...
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0answers
13 views

Slideshow of Image Folder whose files increase

I am trying to stream video from my webcam to a series of images, process these images through a bash script that uses convert (imagemagick) and then output them to a folder. I have been successful ...
1
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1answer
113 views

Why are the images produced by pdfimages different when using the -all flag?

It's my understanding that pdfimages -all extracts images from PDFs in their native formats. Therefore, I expected that the JPG (lossy) images extracted from that command would have the same pixel ...
6
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1answer
2k views

how to install imagemagick for php7 on ubuntu 16.04?

well, just after upgrading my Ubuntu and therefore moving to php7, I seem not to be able to install imagick extension for php using the same old command sudo apt-get install php5-imagick I get this ...
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1answer
44 views

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
74 views

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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61 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 ...
1
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1answer
56 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 ...
3
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1answer
570 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 ...
1
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2answers
62 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 14....
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58 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 ...
0
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1answer
1k 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 ...
0
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1answer
131 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 ...
2
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1answer
66 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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204 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 ...
10
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2answers
323 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 ...
0
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1answer
90 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 ...
4
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1answer
2k 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 2014-...
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0answers
224 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 ...
0
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1answer
83 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 ...
2
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2answers
73 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, ...
0
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2answers
161 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
430 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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18 views

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
74 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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0answers
51 views

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, ...
0
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2answers
358 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 ...
0
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1answer
67 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
163 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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1answer
57 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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102 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
1k 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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0answers
46 views

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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2answers
703 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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4answers
2k 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 ...
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960 views

ImageMagick suddenly installed

I was taking a look at my installed programs, when I saw a program called ImageMagick, I took a look at it in the Ubuntu Software Center, and it's a program to manipulate images. That's OK, but I ...
0
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1answer
992 views

Resizing with imagemagick error message

I am experiencing one particular problem using imagemagick: Everytime I try to resize a certain .png or .jpg by typing the simplest command convert bbb.png -resize 200×200! bbb.png I get this: ...
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2answers
847 views

How can I use convert to resize images to a specific width keeping the ratio for the height? [duplicate]

I have a file with the full path to an image on each line, all are jpg. I want to resize every image/line in the file to 1024px in width, while keeping the aspect ratio for the height. I simply want ...
0
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2answers
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 Image::...
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2answers
2k views

Merging multiple images into one document and add any caption/label to them

I have multiple jpg and png images. I would like to combine them within one document (ODT/PDF/RTF). It can be easily done by means of following command: convert *.png allTogether.pdf However, there ...
0
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2answers
2k views

How to fix problematic Ubuntu ppa configuration?

When I do sudo apt-get update I get following errors: Err http://archive.ubuntu.com raring/main amd64 Packages 404 Not Found [IP: 91.189.91.23 ...
3
votes
1answer
501 views

Is there a way to fill an image with its background color to square size?

Let me describe my problem: I have a site where I post sponsors company logos. Once I'm sent the logo (or I've googled) they are usually in rectangle size - width and height are not equal. On my site,...
3
votes
3answers
772 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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vote
2answers
481 views

convert with bash - trim/crop and center

i need a fast and reliable way to modify a lot of images. There is a lot of white around my pictures i want to get rid about. The problem is, it is a number of similar pictures, but they have ...
1
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1answer
606 views

How to install ImageMagick on Ubuntu 12.04?

I need to install ImageMagick for giving support to a Ruby application I currently am working on. This runs into a VM on which Ubuntu 12.04 is installed (particularly, hashicorp/precise32 release in ...
0
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1answer
346 views

Batch processing folders with `find` and imagemagick's `montage`

So I've been working at this for a while and I think I'm ready to give up. I trying to process sub-folders with imagemagick's montage to create contact sheets. This is basically as close as I've ...
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0answers
541 views

ImageMagick convert problem, command killed or silently exits

Im having peculiar problem with the "convert" command on Precise hosted on Linode. I am trying to convert a pdf to a memory persistent cache file *.mpc using the following command: $ convert -density ...
0
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1answer
164 views

How to compile PythonMagick against custom lib path

I want to compile latest PythonMagick. I am able to compile older one compatible with Ubuntu 14.10 libs, but this version is not sufficient. First step was compile recent imagemagick packages itself ...