Legacy ImageMagick Discussions Archive

Hy

I tile a image:
convert -crop 100x100 -fill blue -quality 30 image.jpg test%02d.jpg

Unfotunately, the rightmost tiles and the bottom tiles are smaller
if the specified geometry extends beyond the dimensions of the input image.

I need the rightmost tiles and the bottom tiles in the same size. (100x100)
The area beyond the dimensions of the input image I would like to fill
with the color blue.

How is it possible?

What about compositing your image onto a blue image of the correct size first and then doing your crop ?
So if your image is 980 x 860 make a blue image 1000 x 900 composite your image onto it and then run your crop on the new image.

Untested but something like:

Code: Select all

convert 1000x900 xc:blue image.jpg -gravity northwest -composite temp.png
convert temp.png -crop 100x100 -quality 30 test%02d.jpg

A great simple idea! Thanks!

Code: Select all

convert -size 1000x900 xc:blue image.jpg -gravity northwest -composite temp.png

I added -size, it works fine!

The faster way is to get IM to just add the pixels using -background blue -extent 1000x900

See IM examples, Cutting and Bordering for all the details of this type of thing. Also see thumbnails, Padding Images, for other mtheods for 'centered' padding.

Legacy ImageMagick Discussions Archive

-crop (Border-Tiles, which are not smaller)

-crop (Border-Tiles, which are not smaller)

Re: -crop (Border-Tiles, which are not smaller)

Re: -crop (Border-Tiles, which are not smaller)

Re: -crop (Border-Tiles, which are not smaller)