On Fri, Mar 07, 2003 at 02:40:48PM -0800, Ken Stuart wrote: > When I tap on the resulting thumbnail on Hires Plucker Viewer, it produces a > second image that is no bigger than the original thumbnail. [..] > The image is way less than the 60kb limit, and somewhat larger than a Palm > screen, but not grossly so, in other words, an ideal test case.
Unfortunatly, the 64kb limit on images is actually based upon a single image's uncompressed size. If you're using zlib or doc compression, you might have an image thats only 17k, but uncompresses to 64k whereas its already reached the limit of the display. Plucker-desktop might automatically be sizing down the image itself to fit within this 64kb constraint... it's better to have a resized image than no image at all :) There are a few things to try out. First off, lower down the bpp you're plucking at. That should definatly solve the problem but you lose alot in image quality. Second, if you're using imagemagick you might be able to enable RlE or Scanline compression on the image itself. This type of compression is different from doc/zlib becuase palm already knows how to handle rle/scanline natively. In other words, we don't have to uncompress these images in order to display it which helps us stay under the 64kb memory chunk limit. I do have a potential solution to this 64kb problem which would in effect blow the whole size issue away. (What's that? You want a 800x600 jpg at 16bpp?.. You have 500k free on the device? SURE GO AHEAD!:) .. I just probably need another month or two to bring it up to a beta quality :) > I hope that either I have overlooked a switch/preference somewhere, or else it > is a simple bug to fix... Lower down the bpp,.. try rle or scanline if you're using imagemagick (sorry, I don't know how to enable it under plucker-desktop) .. By the way, scanline/rle compression is broken under netpbm2, and not available under pil2. IIRC imagemagick is the only image mangler that supports it properly. -- Adam McDaniel Array.org Calgary, AB, Canada _______________________________________________ plucker-dev mailing list [EMAIL PROTECTED] http://lists.rubberchicken.org/mailman/listinfo/plucker-dev
