Batch Image Manipulation script HOW to do this

LESJAR · **Joined:** Aug 28, 2018 **Posts:** 1

I have nearly 1000 png files to which I need to add a small grey line across the middle.
Each image is going to be the same size of 115px wide and 40px high.

So the line will need to be at 20px height i.e. halfway and run for 115px i.e. all across the image.

I want to have this in a way that i can use the BATCH MANIPULATION TOOL to add this line to all 1000 images in one go

I am new to gimp and need some help on this please ASAP

ofnuts · **Joined:** Oct 25, 2010 **Posts:** 4812

Gimp is the wrong tool for this. IMHO if all images are the same size, what you want to do it use ImageMagick's "compose" utility to overlay a 115x40 image with just a thin line on transparent background over all your images.

Code: Select all

convert input.png line.png -gravity center -composite input-with-line.png

Of course you make a shell script to apply this over your 1000 files. In recent version the actual command is likely "magick convert".

Imagemagick has a nice forum, too.