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Image Magick Resize to a smaller image produces bad quality

Posted: 2007-09-12T07:35:53-07:00
by mjhigan
Hi,

I have 2000 image(ranging from 14kb to 70kb) to convert to a standard size of dimension 128x150.
I use Scale('128x150') to resize. $x=$image->Scale('128x150'). The images do resize to 128x150, 121x150 but the larger images seem to have bad resolution. The quality of the photo is bad compared to when resized to a similar dimension using a windows photo editor or any photo editor.

How can I improve the quality of the photos. Not all photos are bad.
I have also tried using thumbnail('128x150')

Please help. I am new to Iamge MAgick and perplexed over this issue.

Thanks,
MJ
mjhigan@scu.edu

Re: Image Magick Resize to a smaller image produces bad quality

Posted: 2007-09-25T23:13:50-07:00
by anthony
Scale is equivelent to a 'box' or pixel averaging. This is not a good 'filter' for general resizing. Use Resize() instead.