Quality loss on thumbnails

[markevans]

Quality loss on thumbnails

[markevans]

Hi!
not with the 'thumb' method (assuming you're using this?), but you can either create your own processor, or easier, there is a 'convert' method which you can pass arbitrary command line args to, which get passed to the imagemagick command line, e.g.

my_image.convert('-resize 30x30 -quality 5')

etc.
This can be chained as per usual so you can call '.url', '.data', etc. on it
cheers
Mark

Thank you for the quick answer.
For clarification, I wasn't actually resizing, but cropping when i noticed the loss of quality. I don't know what causes it then.

The convert method give's me full control, so that already answers my question for command line arguments. When I looked at the code, there didn't seem to be any quality pre-configurations. So I was left in the dark. I'll handle it with the convert method! Thank you!

Update: Turns out I didn't know ImageMagick's default quality value is 92. Sorry and thanks for the support!

[acrolink]

I have a question about the .convert method i.e.

my_image.convert('-resize 320x200 -quality 95')
`
Is the resulted images cached or is it re-generated each time the page is viewed? Thanks.