See http://www.cit.gu.edu.au/~anthony/graphics/imagick/thumbnails/
<quote>General Thumbnail Creation
Generate Thumbnails to a specific height
Lets convert a large sample JPEG image to a GIF thumbnail 90 pixels
high, with the width automatically adjusted (within the 250 pixel
width limit) preserve the aspect ratio of the image.
convert -size 500x180 hatching.jpg -thumbnail 250x90 height.gif
[IM Output]
Note that I used the "-thumbnail" option above. This not only resizes
the image, but strips any and all profile and comment information
that may be present in the original JPEG image.
I also set a minimum "-size" for the image being read in. This is
passed to the JPEG library, which will return an image somehere
between this size and double this size (if posible), rather that the
whole very large original image. Basically don't overflow the
computers memory with an huge image when it isn't needed.
The "-size" value I use is double that of the final thumbnail so that
resize will still generate an reasonable result.
</quote>
On Apr 28, 2006, at 7:06 AM, Robert Garcia wrote:
So anyway, ImageMagick support this hinting. It is NOT documented
anywhere, as far as I know, I just stumbled on it.
Bill
William M. Conlon, P.E., Ph.D.
To the Point
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