I have an image 100x40 and I want to add a border to the top of the image 10 pixels high.
I've found
convert source.jpg -border 0x10 out.jpg
but this adds a border to the top and bottom. Is there anyway to add it to only the top?
views:
389answers:
2
A:
Use -extent instead:
convert source.jpg -gravity south -extent 100x50 out.jpg
-gravity tell it which direction to move the original image.
eduffy
2010-02-22 18:54:29
I should have said, I'm doing this to a batch of images which all have different sizes so I wouldn't be able to know what dimensions to pass to the -extent option. Having said that, it's a very useful option to know about.
opsb
2010-02-24 11:59:50
+2
A:
Use -splice:
convert source.jpg -splice 0x10 out.jpg
If you want to add the border only at the bottom, use -gravity as well:
convert source.jpg -gravity south -splice 0x10 out.jpg
Note that the border will be transparent, unless you use -background, too.
See also Cutting and Bordering for more examples.
Danilo Piazzalunga
2010-02-22 18:58:48