summaryrefslogtreecommitdiffstats
path: root/upstream/opensuse-leap-15-6/man1/ppmflash.1
diff options
context:
space:
mode:
Diffstat (limited to 'upstream/opensuse-leap-15-6/man1/ppmflash.1')
-rw-r--r--upstream/opensuse-leap-15-6/man1/ppmflash.168
1 files changed, 68 insertions, 0 deletions
diff --git a/upstream/opensuse-leap-15-6/man1/ppmflash.1 b/upstream/opensuse-leap-15-6/man1/ppmflash.1
new file mode 100644
index 00000000..f7a2fd0a
--- /dev/null
+++ b/upstream/opensuse-leap-15-6/man1/ppmflash.1
@@ -0,0 +1,68 @@
+\
+.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
+.\" Do not hand-hack it! If you have bug fixes or improvements, please find
+.\" the corresponding HTML page on the Netpbm website, generate a patch
+.\" against that, and send it to the Netpbm maintainer.
+.TH "Ppmflash User Manual" 0 "26 January 2003" "netpbm documentation"
+
+.UN lbAB
+.SH NAME
+ppmflash - brighten a picture to approach white
+
+.UN lbAC
+.SH SYNOPSIS
+ppmflash
+\fIflashfactor\fP
+[\fIppmfile\fP]
+
+.UN lbAD
+.SH DESCRIPTION
+.PP
+This program is part of
+.BR "Netpbm" (1)\c
+\&.
+.PP
+\fBppmflash\fP reads a PPM image as input. It changes the color of
+each pixel to bring it a specified amount closer to white. It
+generates a PPM image of the result.
+.PP
+\fIflashfactor\fP is a real number between 0 and 1, inclusive.
+\fBppmflash\fP increases the intensity of each RGB component by the
+fraction \fIflashfactor\fP of the difference between the current
+value and full intensity. So if a pixel contains 60% full red, 10%
+full green, and no blue and you specify 0.5 (half), \fBppmflash\fP
+increases the red to 80% (because it was 40% from full intensity, so
+it adds half of 40% to the original 60%), the green to 55%, and the
+blue to 50%.
+.PP
+If \fIflashfactor\fP is zero, the output is identical to the input.
+If \fIflashfactor\fP is one, the output is all white.
+.PP
+\fBppmbrighten\fP does a more normal kind of brightening.
+\fBpamfunc\fP does a very simple brightening. Both
+\fBppmbrighten\fP and \fBpamfunc\fP can reduce brightness as well.
+.PP
+\fBpnmgamma\fP is another way people do a similar brightening, though
+it isn't really intended for that.
+
+.UN lbAE
+.SH SEE ALSO
+.BR "ppmbrighten" (1)\c
+\&
+.BR "pamfunc" (1)\c
+\&,
+.BR "pnmgamma" (1)\c
+\&,
+.BR "ppm" (5)\c
+\&,
+
+.UN lbAF
+.SH AUTHOR
+
+Copyright (C) 1993 by Frank Neumann
+.SH DOCUMENT SOURCE
+This manual page was generated by the Netpbm tool 'makeman' from HTML
+source. The master documentation is at
+.IP
+.B http://netpbm.sourceforge.net/doc/ppmflash.html
+.PP \ No newline at end of file