[magick-users] (small size) resize image for the web

[Stephane Brossier]

Hi,

I am trying to resize some images to export them on a web site.

The 'convert' command from image magick works well but the image size  
resulting is pretty large:

Starting from a 1.214 mb image, i resize it to get an icon 48x48 but  
the result size of the icon is
17Kb!!!  Is there a way to do better?

I tried to lower the quality and use sampling-factor but the size is  
still very large:

$ convert  -resize 48x48 -sampling-factor 4x1 -quality 40 -antialias   
example.jpg result.jpg


$ identify example.jpg
example.jpg JPEG 2304x2304 2304x2304+0+0 8-bit DirectClass 1.214mb

$ identify result.jpg
result.jpg JPEG 48x48 48x48+0+0 8-bit DirectClass 17.1kb



Besides i heard there is way to get good results using photoshop  
'export for the web'.
Is there a way to mimic that with imagemagick?

Thanks!

S.