Legacy ImageMagick Discussions Archive

Hi Guys,

I'm trying (and failing miserably) to get Imagemagick to replicate a task that I do in fireworks to create a 65x65px thumbnail image.

In fireworks I i take the original image, resize its smallest side to 65px (scaling the other side down equally so the image does not look squashed) and then i crop a 65x65px square from the centre of the image.

This essentially gives me the original image, but as a 65x65 thumbnail and keepign the ratio of the original image, but possibly with it's sides trimmed.

If that doesn't make sense let me know and i can provide some images.

you can try using command

convert -resize 65x65! image.jpg thumbnail-output.jpg

note that there is a '!' character after the dimension.


regards,
sonus

I'll give that a go - cheers (sounds almost too easy tho :p)

I'm afraid that command didn't work.

It does create a 65x65px thumbnail, but it squashes the dimensions rather than trimming the edges to keep the correct ratio.

See IM examples, Thumbnails.
You can either pad out the image, or chop off the offending edges.

I found this command:

convert -size 300x300 hatching.jpg \
-thumbnail x200 -resize '200x<' -resize 50% \
-gravity center -crop 100x100+0+0 +repage cut_to_fit.gif

It works for landscape photos, but not portrait.

I'm tyring to find the idea "crop to square" routine. The one I currently use involves padding it out, but, I'd rather it just crop off the edges.

It works find for me.

Though it does assume the photo has the correct orientation.
If you photo has NOT been auto-orientated add a -auto-orient before the -thumbnail operator.

Perhaps it is time a -resize-crop operator is added to IM to resize and crop and image to bebest fit the given size.

I'll add this to the 'furture proposals' page

Oh, my mistake, it is working. I reversed one of the x200's.

It'd be great if there was a simpler way of doing this. so, I'm all for the crop resize.