Roland Tanner on wrote... | Hello, | | As mentioned in quite a few other posts, convert can be slow in converting | images between one format and another, depending on setup. I am experiencing | very slow processing. (Admittedly I'm working on an underpowered laptop, | which does not help). | | Can I get some advice? I have about 1000 tiff images, of about 500KB each, so | not vast as far as tiffs are concerned. They are monochrome from microfilm. I | want to convert them to pngs suitable for website display - so resize and | then convert them. | | Unfortunately the files were converted on some proprietary Windows based | scanning platform - opening them in the GIMP crashes KDE! However they are | not corrupted. I have put some version info at the end of this message. Note | the 'unknown field' report at the end, which every image has. | | The advice I need is: | Will using Q8 rather than Q16 decrease the quality of the resulting image? | Generally no, but it depends on the destination format which you did not mention.
| Would resizing first and then converting be better/quicker than doing in one | convert command? | Resize during the read process rather than afterward. | If I want to use Q8, am I going to have to compile it?! Would I have to | unistall Q16 first? I'd rather apt-get, but I can't see it in my repos. | No. just get the source and build a new one. See IM Examples, Feedback and Questions http://www.imagemagick.org/Usage/feedback.html#speed It is very general however. Also specialized programs may be faster, such as tif2gif from the libtiff package, as is is more specific, than a generalised image processor. Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]> ----------------------------------------------------------------------------- Personally, I consider myself perfect and bug free...bug free... bug free... bug free... bug free... bug free... bug free... bug free... -- Adam Calinsed Cuerden <[EMAIL PROTECTED]> ----------------------------------------------------------------------------- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
