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.\" man page by Jim Van Zandt <jrv@vanzandt.mv.com> -*- nroff -*-
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.TH HDFTOPAL 1 "November 6, 1999"
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hdftopal, paltohdf \- convert between a palette in an HDF file and a raw palett
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\fBhdftopal\fP \fIhdf-pallette-file\fP \fIraw-pallette-file\fP
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\fBpaltohdf\fP \fIraw-pallette-file\fP \fIhdf-pallette-file\fP
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\fBhdftopal\fP converts a palette in an HDF file to a raw
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palette in an non-HDF file. The raw palette will have 768 bytes with
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the first 256 bytes representing red intensity values, the second 256
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bytes representing green intensity values, and the third 256 bytes
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representing blue intensity values.
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\fBpaltohdf\fP performs the converse conversion, from raw palette data
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to the HDF palette format. The raw palette data must have 768 bytes
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organized in the following order: first, 256 contiguous red intensity
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values, then 256 contiguous green intensity values, then 256
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contiguous blue intensity values. The palette in the HDF file will
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have the RGB values pixel-interlaced, as follows:
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red-value green-value blue-value red-value green-value blue-value...
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This is the standard HDF format for 8-bit palettes.
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If an HDF palette format file is specified that doesn't exist, it is
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created before the converted data is stored. If an HDF palette format
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file is specified that already exists, the converted data is appended