Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Combine multiple images into a single image with ImageMagick
Answer:
With the powerful ImageMagick program, we can easily handle common graphics tasks using command only.
For example, to combine multiple images into a single image, we need just one command:
# convert file1.jpg file2.jpg file3.jpg +append -quality 90 'output.jpg'
The above command (file1.jpg file2.jpg file3.jpg) into the file output.jpg with quality set to 90.
Create a transparent image using ImageMagick
Answer:
You can use the following command to create an empty png file, using the ImageMagick.
# convert -size 100x100 xc:none empty.png
an empty png of size 100x100 will be created.
Print large banner on printer
Answer:
This is a less well known command for Linux. It allow you to prints a large, high quality banner on the standard output.
Example:
# banner -w 80 Hello World
Where -w change the width of the output, in which the default is 132.
Convert HTML to image
Answer:
Firstly, you need to install html2ps
# sudo apt-get install html2ps
Then install the ImageMagick
# sudo apt-get install imagemagick
Finally run the command:
# convert -density 72 input.html output.png
