How to avoid upscaling very small images when thumbnailing

[phy9pas]

Hello, this seems like it should be a simple thing to do, but I can't find any examples anywhere.

I'm using the following command to thumbnail images

-quality 100 "$source" -thumbnail "100x100" "$dest"

But I want to skip any images which are smaller than 100x100, otherwise it seems to upscale small images to fit.

Thanks in advance.

Pete

[fmw42]

try

-thumbnail "100x100>"

see http://www.imagemagick.org/script/comma ... p#geometry

[anthony]

See IM Examples, Resize - only shrink larger images
http://www.imagemagick.org/Usage/resize/#shrink

[phy9pas]

That's done the trick.
Cheers guys.

Pete