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5
votes
2answers
254 views

Create the same PNG with ImageMagick 2 times: Binaries differ

I create two images that should be identical, but their binaries are different: $ convert -size 1x1 xc:white out1/w.png $ sleep 1 $ convert -size 1x1 xc:white out2/w.png $ diff out1/w.png out2/w.png ...
4
votes
2answers
95 views

How do I write a script to automatically optimize all the PNGs in my MediaWiki images directory?

I have MediaWiki 1.25.2 installed on my 64-bit Debian 8.1 VirtualBox machine and I'd like to be able to upload the images/ directory from this installation to my DropBox. Being a cheapskate I'm trying ...
4
votes
1answer
130 views

Convert Xcursor to PNG

Xcursor is a format for the graphics of the cursor in X11 (file reports X11 cursor). xcursorgen allows you to convert PNG files and some metadata to Xcursor files. How do I convert an Xcursor file ...
3
votes
1answer
318 views

Icon themes, when is svg format helpful?

I found that arch provides both oxygen-icons and oxygen-icons-svg, what's the necessity of svg format? Is there something that a PNG image "can't do", maybe performance issue? Not sure about it.
2
votes
3answers
205 views

Bash script to minify PNG's keeps stopping

I have tried to run this script a few times now and it keeps hanging. I have 60,000 images and it goes through about a 1000 and then stops. I have been running the top command and the process ...
2
votes
2answers
1k views

How to convert multiple XCF files to PNG?

I have a folder with a lot of xcf files which I want all to be converted to png files, at best via a one-liner from bash. How can I achieve such a task?
2
votes
1answer
34 views

Searching Files according to PNG Meta-Tags

As stated in the title, I want to search for PNG's in a (sub-)folder structure with the meta tag software set to the value GNOME::ThumbnailFactory and delete them with a single bash command. Have ...
1
vote
1answer
4k views

Conversion from PNG to EPS

I would like to convert PNG images/graphs to EPS without losing even a bit on resolution. All the commands I tried (potrace, autotrace, convert, gimp) decrease the resolution quality.
1
vote
1answer
9 views

Need to replace one cursor of a set; have already created the PNG for the cursor

I have created a replacement for xterm cursor that will allow me to see the cursor (Windows, incidentally, calls the xterm cursor the "i-beam", which is rather more descriptive) much better. Problem ...
1
vote
1answer
87 views

limitations of CUPS command line printing of image files

I have my default printer set: lpoptions -d HP_ENVY_5530_series. I can print some text: echo HELLO > h.txt lp h.txt CUPS understands many different types of files directly, including text, ...
0
votes
1answer
4k views

Imagemagick used to generate PPM's in Linux, PPM's are unreadable

I need to generate PPM's as raw data sources for one program. I have a bunch of png's as Input, which I'm going to convert ppm's. When I try a tool like mogrify it generates files, but these are ...
0
votes
1answer
38 views

Windows visio pngs can't be opened on linux

I have a PNG image created from VISIO under windows which I tried to use in LaTeX. However, every linux program (LaTeX, Okular, GimP) claims the file is corrupted, however, it shows up fine in Chrome. ...