[ale] tiff conversion

[ale at spinnerdog.com (David Hamm)]

With Graphics Magick I've used this command.
 gm convert -resample 72x72 -scale 50x50% Dc397.TIF -resample 72x72 -scale 
50x50% Dc397.jpg
It works but takes 6 mins

Image magick :
convert -limit memory 32 -limit map 64 Dc397.tif -units PixelsPerInch -density 
72 -quality 60 -resize 50%x50% Dc397.png

convert: unable to extend cache `Dc397.tif': Invalid argument.
convert: missing an image filename `Dc397.png'.

I believe I should be able to use the same arguments for either program but 
ImageMagick always produces the error listed above.

On Wednesday 04 November 2009 17:01:51 James Sumners wrote:
> What switches are you using with ImageMagick? I'm able to process
> about 1GB of images with ImageMagick in around 30 minutes.
>
> On Wed, Nov 4, 2009 at 4:30 PM, David Hamm <ale at spinnerdog.com> wrote:
> > HI,
> >
> > I need to convert Tiff images to png for preview on a web site. ?Problem
> > is that ImageMagic and GraphicsMagick are slow, real slow. ?Does anybody
> > know of another command line grapics file conversion tool?