I've applied the following imagemagick options:

\( +clone -background '#a4a4a4ff' -shadow 80x3+5+5 \) +swap -background none -layers merge +repage

after a scale action to create an imagecache preset. The drupal icon preview works perfectly, but when it's called elsewhere - eg a view - the shadow effect isn't applied, it just shows a hard-edged block instead of a feathered shadow. Any idea why this might be?

Many thanks

Comments

adrinux’s picture

adrinux commented

My first guess would be that imagemagick is unable to apply the shadow properly because of the image format - you wouldn't be able to apply a nice shadow to an 8-bit gif for example. You might need to change bit depth or file format before applying the shadow.
(Note that drupal 6 image api is unable to change the filename, so while I believe it's possible to change the image format with im_raw, the file extension will remain the original.)

mimpse’s picture

mimpse commented
Status: Active » Fixed

Thanks for getting back so quickly. I fixed the problem - it was due mainly to my own witlessness. I hadn't noticed that the client had snuck in some jpegs, which obviously couldn't carry the transparency required for the shadow blur. Fixed it by changing to:

\( +clone -background '#a4a4a4ff' -shadow 80x3+5+5 \) +swap -background white -matte -layers merge +repage

That is, changing '-background' from 'none' to 'white' and adding '-matte'. This works fine for images displayed on a white background - obviously it doesn't give you transparency in the shadow.

Thanks again and apologies for being dim.

Status: Fixed » Closed (fixed)

Automatically closed -- issue fixed for 2 weeks with no activity.