On Apache
Under GNU General Public License
2024-04-24 23:29 @18.118.30.253 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Ppmfade User Manual(0) Ppmfade User Manual(0)
NAME
ppmfade - generate a transition between two image files using special effects
SYNOPSIS
ppmfade [-f first.ppm] [-l last.ppm] [-mix|-spread|-shift| -relief|-oil|-edge|-bent-
ley|-block] [-base name]
DESCRIPTION
This program is part of Netpbm(1).
ppmfadegenerates a transition between either two input images or between one input image
and black. You can use the 30 intermediate images generated to show a smooth transition
between segments of a movie. The input and output images are in the PPM format. If you
specify both input images, they should both be the same size. If you want to fade from
black to an image, specify only the last image. If you want to fade from an image to
black, specify only the first image. ppmfade names the resulting image files
base.nnnn.ppm, where nnnn is a number varying between 0001 and 0030 and base is what you
specify with via the -base option (default fade).
Another way to convert by steps from one image to another is morphing. You can use xmorph
to do that.
OPTIONS
-f first.ppm
This is the image file (PPM format) to be used at the beginning of the transition.
If you don't specify this, the fade will start from black.
-l last.ppm
This is the image file (PPM format) to be used at the ending of the transition. If
you don't specify this, the fade will end with black.
-mix The two images are superimposed with the brightness of the first image decreasing
from full to none and the brightness of the final image increasing from none to
full. The transition is quadratic in brightness with faster transition in the
beginning and slower at the end.
-spread
The pixels in the first image will be moved (spread) further and further from their
original location and then moved into the proper location in the final image. This
is the default transition.
-shift The pixels in the first image will be shifted further and further horizontally from
their original location and then moved into the proper location in the final image.
-relief
The first image is faded to a Laplacian relief filtered version of the first image.
This is then faded to a Laplacian relief filtered version of the second image and
finally faded to the final image.
-oil The first image is faded to an "oil transfer" version of the first image. This is
then faded to an "oil transfer" version of the second image and finally faded to
the final image.
-edge The first image is faded to an edge detected version of the first image. This is
then faded to an edge detected version of the second image and finally faded to the
final image.
-bentley
The first image is faded to a "Bentley Effect" version of the first image. This
is then faded to a "Bentley Effect" version of the second image and finally faded
to the final image.
-block The first image is defocused to small blocks. The small blocks are converted to
match a defocused version of the last image. The block version of the last image
is then focused to the final image.
-base name
This forms part of the output filenames, as described above.
EXAMPLES
ppmfade -f teapot.ppm -l pyr.ppm
Fade from teapot.ppm to pyr.ppm generating fade.0001.ppm to fade.0030.ppm using the
"spread" transition.
ppmfade -l teapot.ppm
Fade from black to teapot.ppm generating fade.0001.ppm to fade.0030.ppm.
ppmfade -f teapot.ppm -base end
Fade from teapot.ppm to black generating end.0001.ppm to end.0030.ppm.
SEE ALSO
tontsc manual, sgifade manual, smart_vfr manual, xmorph manual, ppm(1)
AUTHOR
Bryan Henderson, Olympia WA; April 2000
Inspired by and intended as a replacement for pbmfade (not a Netpbm program) by Wesley C.
Barris.
DOCUMENT SOURCE
This manual page was generated by the Netpbm tool 'makeman' from HTML source. The master
documentation is at
http://netpbm.sourceforge.net/doc/ppmfade.html
netpbm documentation April 1, 2000 Ppmfade User Manual(0)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-24 23:29 @18.118.30.253 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)