How to split image into uneven parts?

[Alex Jr]

Hi everyone, I installed ImageMagick for Terminal on Mac and I am wondering how I can split my image into uneven pieces, and create a new file for each piece?



No, I am not going to release this copyrighted image in my game, its just for experimentation.

[fmw42]

Please always provide your IM version and platform, since syntax and scripting may differ.

How does one know where to split these, since especially some overlap horizontally?

If there is not a clean separation, then you likely will have to do that manually using the -crop operator. See http://www.imagemagick.org/Usage/crop/#crop

[snibgo]

Code: Select all

convert 83596.png -alpha extract -scale x1! -fill White +opaque Black a.png

This is black where we can cut, and white where we can't. However, it misses the right-most cut point because of the "Sprites ripped by..." text.

[Alex Jr]

IM Version @6.9.8-3_0+x11, Platform OS X El Capitan, 10.11.6

[Alex Jr]

@snibgo, What's 83596.png and a.png supposed to represent?

This is my first time using ImageMagick.

[fmw42]

@snibgo, What's 83596.png and a.png supposed to represent?

This is my first time using ImageMagick.

The input and output images, respectively.

[snibgo]

As Fred says. The file you uploaded has been renamed 83596.png by that website.

If you know the x-coordinates of your cut positions or the width of the pieces, you can just do a number of "-crop" operations. Five of the cut points can be found automatically (eg by my guillotine.bat script). If you crop off the "Sprites ripped by..." text, it finds them all.