diff options
| author | dcommander <dcommander@632fc199-4ca6-4c93-a231-07263d6284db> | 2014-05-12 09:09:40 +0000 |
|---|---|---|
| committer | dcommander <dcommander@632fc199-4ca6-4c93-a231-07263d6284db> | 2014-05-12 09:09:40 +0000 |
| commit | 7233d2026b9ec24d0405749d4854eabef88e97c1 (patch) | |
| tree | 9c38d3c80057feaa1e2ac01cc9b769b4d9fc3618 /djpeg.1 | |
| parent | e3a9819b34e6e1665806adc93cf907bf119da4a2 (diff) | |
Document -rgb option in djpeg man page; "gray-scale"="grayscale"
git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1294 632fc199-4ca6-4c93-a231-07263d6284db
Diffstat (limited to 'djpeg.1')
| -rw-r--r-- | djpeg.1 | 17 |
1 files changed, 10 insertions, 7 deletions
@@ -55,11 +55,14 @@ default options are chosen for highest quality output.) Currently, this is equivalent to \fB\-dct fast \-nosmooth \-onepass \-dither ordered\fR. .TP .B \-grayscale -Force gray-scale output even if JPEG file is color. Useful for viewing on +Force grayscale output even if JPEG file is color. Useful for viewing on monochrome displays; also, .B djpeg runs noticeably faster in this mode. .TP +.B \-rgb +Force RGB output even if JPEG file is grayscale. +.TP .BI \-scale " M/N" Scale the output image by a factor M/N. Currently the scale factor must be M/8, where M is an integer between 1 and 16 inclusive, or any reduced fraction @@ -74,7 +77,7 @@ emitted if .B \-colors or .B \-grayscale -is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color +is specified, or if the JPEG file is grayscale; otherwise, 24-bit full-color format is emitted. .TP .B \-gif @@ -88,12 +91,12 @@ emitted if .B \-colors or .B \-grayscale -is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color +is specified, or if the JPEG file is grayscale; otherwise, 24-bit full-color format is emitted. .TP .B \-pnm Select PBMPLUS (PPM/PGM) output format (this is the default format). -PGM is emitted if the JPEG file is gray-scale or if +PGM is emitted if the JPEG file is grayscale or if .B \-grayscale is specified; otherwise PPM is emitted. .TP @@ -101,8 +104,8 @@ is specified; otherwise PPM is emitted. Select RLE output format. (Requires URT library.) .TP .B \-targa -Select Targa output format. Gray-scale format is emitted if the JPEG file is -gray-scale or if +Select Targa output format. Grayscale format is emitted if the JPEG file is +grayscale or if .B \-grayscale is specified; otherwise, colormapped format is emitted if .B \-colors @@ -174,7 +177,7 @@ faster and needs less memory, but it produces a lower-quality image. is ignored unless you also say .B \-colors .IR N . -Also, the one-pass method is always used for gray-scale output (the two-pass +Also, the one-pass method is always used for grayscale output (the two-pass method is no improvement then). .TP .BI \-maxmemory " N" |