diff options
Diffstat (limited to 'utilities/gm.1')
| -rw-r--r-- | utilities/gm.1 | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/utilities/gm.1 b/utilities/gm.1 index 5c56358..ec5f39f 100644 --- a/utilities/gm.1 +++ b/utilities/gm.1 @@ -1,4 +1,4 @@ -.TH gm 1 "2022/03/11" "GraphicsMagick" +.TH gm 1 "2023/09/18" "GraphicsMagick" .TP .in 15 .in 15 @@ -1213,6 +1213,19 @@ The following definitions may be created: .in 15 .in 15 +.B "bmp:allow-jpeg={true|false}" +.in 20 + \fR +.in 20 +If the bmp:allow-jpeg value is set to true, then enable BMP files +using JPEG compression, under control of the compression option (which +may be JPEG already if the input file is JPEG). JPEG-compressed BMP +files are very rare so this option acts as a safeguard to assure that +the current compression setting does not accidentally produce +JPEG-compressed BMP files which most other software is unable to read. + +.in 15 +.in 15 .B "cineon:colorspace={rgb|cineonlog}" .in 20 \fR @@ -1296,6 +1309,15 @@ in the writer. .in 15 .in 15 +.B "heif:ignore-transformations={true|false}" +.in 20 + \fR +.in 20 + +Return HEIF (e.g. HEIC/AVIF) image without any transformations (e.g. rotation) applied. + +.in 15 +.in 15 .B "gradient:direction={South|North|West|East|NorthWest|NorthEast|SouthWest|SouthEast}" .in 20 \fR @@ -1325,6 +1347,16 @@ setting. The default quality setting of 75 results in a rate value of .in 15 .in 15 +.B "jpeg:arithmetic-coding={true|false}" +.in 20 + \fR +.in 20 +Enables or disables arithmetic encoding if the JPEG library +supports it (default disabled). When this is enabled, optimize-coding +is necessarily disabled. + +.in 15 +.in 15 .B "jpeg:block-smoothing={true|false}" .in 20 \fR @@ -1537,6 +1569,19 @@ data at all. .in 15 .in 15 +.B "tiff:photometric={minisblack|miniswhite}" +.in 20 + \fR +.in 20 +For grayscale and bilevel images, GraphicsMagick normally chooses +the photometric based on bit depth and compression. If the +tiff:photometric key is defined, GraphicsMagick will use it to +determine the photometric used while writing grayscale and bilevel +images. Normally bilevel images are miniswhite and grayscale images +are minisblack. + +.in 15 +.in 15 .B "tiff:report-warnings={false|true}" .in 20 \fR |