Use this tag for questions related to the changing/combining of files containing pictures or other images. (Dumps of filesystems are often called images, but handling those is not called image-manipulation)

learn more… | top users | synonyms

0
votes
1answer
136 views

Imagemagick mogrify with shadow geometry

How can I specify the size of a shadow with imagemagick? This command works: montage foo.jpg bar.jpg foobar.jpg -background lightgray -geometry 1031x1642+57+57 -shadow -monitor -tile 3x1 out.png ...
1
vote
0answers
20 views

How to cut a really large raster image into smaller chunks?

I have a large poster as a pdf-file. I need to create a raster image from it (for instance because there seems to be no pdf viewer which allows me to zoom sufficiently to see the contents). So I ...
1
vote
0answers
139 views

How can I add a still image inside a video with avconv or opensource software

I would like to add a still image inside a h264 video following an in and out point in time. I would like to use only opensource/free Linux/Debian packages. I tried a lot of things with avconv like ...
1
vote
0answers
41 views

Linux display server or program that can route video and/or images between its clients?

The JACK Audio Connection Kit (http://jackaudio.org/) is a really useful tool for working with audio on linux systems. It allows for both audio and MIDI data to be communicated between its clients, ...
0
votes
0answers
12 views

What Linux tool can I use to measure font sizes in a PSD file?

I've tried gimp (clicking the texts with the Text tool), but it doesn't work (adds a new text instead of focusing on the existing one). The font information is already there (I've asked a friend with ...
0
votes
0answers
37 views

Resizing image with ImageMagick and Ruby on Rails

I have been trying to use Imagemagick to resize images uploaded by a user as a square. Currently, I am using the ! like so - 640x640! This works fine if the image I feed it is a resolution of ...
0
votes
0answers
30 views

imagemagick: compositing images with fractional X/Y offsets

Using a one-line imagemagick command, how can the offset of a destination image be defined in relation to the size of the source image? The following command superimposes two images with absolute ...
0
votes
0answers
41 views

How to obtain the same effect as Camscanner default setting using terminal?

As of now, I can't find any linux command line tool to do it (Demonstration of Camscanner). I could do it using GIMP batch edit mode, But I am looking for existing command line tools/utilities. For ...
0
votes
0answers
69 views

Metadata preservation when modifying images with ImageMagic

I want to resize, convert or resize + convert images in JPEG, PNG and TIFF in each direction: jpg → tiff, tiff → png, etc. And I want to use -flatten as well. What does ImageMagick do with the ...
0
votes
0answers
33 views

viewing 16 bit images in feh

I prefer to view images with feh because of its rendering speed. However, 16 bit tiff image files appear completely black when loaded by this application. Are such images amenable to display by feh ...
0
votes
0answers
44 views

Pngquant does not run in Crontab

I have created a small script to compress all the images using pngquant. The script is as follows: #!/bin/bash find /home/ghosthut/wp-content/uploads -mtime -2 -iname '*.png' -print0 | xargs -0 ...