JPEGonDCTV100

Short:        fast+good jpeg viewer for DCTV
Author:       nicolas-dade@uiuc.edu
Uploader:     nicolas-dade uiuc edu
Type:         gfx/show
Architecture: m68k-amigaos

	JPEGonDCTV version 1.00, copyright 1994 by Nicolas Dade

What is it?

It's a jpeg viewer that can display both color and greyscale
jpegs using the DCTV display device.


Why this one?

o It's faster than VT or FastJPEG: for a 640x480 jpeg:
    JPEGonDCTV	 1:07 for color, 4plane interlaced (the usual case)
    JPEGonDCTV	 0:31 for greyscale, 3 plane non-interlaced (a quick fullsize)
    JPEGonDCTV	 0:08 for color preview, 3 plane non-interlaced (a small peek)
    FastJPEG1.00 1:35
    VT1.05	 3:10
  (times measured on 7.14Mhz 68010 machine w/ ample fastram)
o It has a preview mode (that doesn't need thumbnail images)
o It handles true greyscale jpegs too.
o It outputs directly to the DCTV display, which is a lot prettier than
  lores interlaced ham6.
o The aspect ratio of the image and the aspect ratio of the display mode
  are obeyed: no more tall faces and oval circles! (Both VT and FastJPEG
  neglect this completely)
o It sanity-checks much more of the jpeg file than VT and FastJPEG do.


What do I need?

o a DCTV display box.
o the dctv.library. This came with your DCTV unless you have an early
  version. If not, or of you want the newest version, it's available on
  aminet.
o Some jpeg images. :)


Nicolas Dade / n9rzb / nicolas-dade@uiuc.edu