HDF8TO24(1) General Commands Manual HDF8TO24(1)NAME
hdf8to24 - convert an 8-bit image in an HDF file to a 24-bit image in another HDF file
SYNOPSIS
hdf8to24 [-sscale] [-jquality] input_hdf_file output_hdf_file
DESCRIPTION
hdf8to24 converts an 8-bit image in an HDF file into a 24-bit image in an other HDF file.
OPTIONS -sscale
set scale for magnifying the 8-bit input file. scales between 0 and 1 shrink the image, scales greater than 1 expand the image.
Defaults to 1
-jquality
use JPEG compression to store the 24-bit image Defaults to no compression, or quality level 75, if no quality is specified.
SEE ALSO hdf(5), hdf24to8(1)
October 30, 1999 HDF8TO24(1)
Check Out this Related Man Page
R8TOHDF(1) General Commands Manual R8TOHDF(1)NAME
r8tohdf - convert 8-bit raster images to HDF format
SYNOPSIS
r8tohdf [number-of-rows number-of-columns] output-filename [-p palette-filename] [-c] [-r] [-i] raw-raster-image-filename-1, raw-raster-
image-filename-2, ...
DESCRIPTION
r8tohdf converts a set of raw raster images to the HDF RIS8 format and writes them to a file.
OPTIONS -p pallette-file
Specify the name of the palette file.
-c Run length coding. Compress the output data using run-length encoding.
-i IMCOMP Compression. Compress the output data using the IMCOMP method.
-r No Compression. Apply no compression to the output data. (the default).
EXAMPLES
A file named "rawras" contains a 256 x 512-byte raw raster image, and its palette is stored in a file name "mypal". To convert the informa-
tion in these files to an RIS8 without compression and store the RIS8 in a file named "ras.hdf", enter the following r8tohdf command:
r8tohdf 256 512 ras.hdf -p mypal rawras
A 800 x 1000-byte raw raster image is stored in a file named "bigpic". This data must be converted to a RIS8 without a palette, compress-
ing it using run-length encoding, then stored in a file named "bigpic.hdf". The following command will do this:
r8tohdf 800 1000 bigpic.hdf -c bigpic
A 300 x 400 raw raster image is contained in each of the files named "pic1", "pic2", and "pic3". To convert all three files to RIS8s, com-
press them using the IMCOMP method, and store them in a file named "pic.hdf", enter
r8tohdf 300 400 pic.hdf -i pic1 pic2 pic3
Different types of raster image data are to be stored in a file named "ras.hdf". The image data in the file "rawras1" will be stored with-
out a palette. The image data sets from the file named "rawras2" are to be stored with a palette extracted from a file named "mypal". The
images from the "rawras1" and "rawras2" files are to be compressed using run-length encoding, and the image in the "rawras3" file is not to
be compressed. The size of all images are 256 x 512 bytes. The following command is used to do this:
r8tohdf 256 512 ras.hdf -c rawras1 -p mypal rawras2 -r rawras3
SEE ALSO hdftor8(1), hdf(5)
November 6, 1999 R8TOHDF(1)
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