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dwebp: add PAM output support

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retains the alpha channel rather than stripping it as with PPM.

display from ImageMagick can render the files

Change-Id: I4f3a5d332937e0aeaf4e3fbd214fdae3b5382fb8
This commit is contained in:
James Zern
2012-07-20 16:06:06 -07:00
parent c3a207b9f4
commit d919ed06eb
2 changed files with 27 additions and 8 deletions
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9
man/dwebp.1
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@ -1,5 +1,5 @@
.\" Hey, EMACS: -*- nroff -*-
.TH DWEBP 1 "January 24, 2012"
.TH DWEBP 1 "July 20, 2012"
.SH NAME
dwebp \- decompress a WebP file to an image file
.SH SYNOPSIS
@ -11,7 +11,7 @@ This manual page documents the
.B dwebp
command.
.PP
\fBdwebp\fP decompresses WebP files into PNG, PPM or PGM images.
\fBdwebp\fP decompresses WebP files into PNG, PAM, PPM or PGM images.
.SH OPTIONS
The basic options are:
.TP
@ -24,8 +24,11 @@ Print the version number (as major.minor.revision) and exit.
.B \-o string
Specify the name of the output file (as PNG format by default).
.TP
.B \-pam
Change the output format to PAM (retains alpha).
.TP
.B \-ppm
Change the output format to PPM.
Change the output format to PPM (discards alpha).
.TP
.B \-pgm
Change the output format to PGM. The output consist of luma/chroma