Gamma LAT: Reference Manual

mask_op

ANSI-C program: mask_op.c

NAME
mask_op - perform logical operations on mask files (Sun raster or BMP format).

SYNOPSIS
mask_op <mask-1> <mask-2> <mask_out> <mode>

<mask-1>	(input) mask 1 SUN raster .ras, or BMP .bmp format, 8-bits/pixel
<mask-2>	(input) mask 1 SUN raster .ras, or BMP .bmp format, 8-bits/pixel
<mask-out>	(output) mask 1 SUN raster .ras, or BMP .bmp format
<mode>	logical operation:
	0: mask-1 AND mask-2
	1: mask-1 OR mask-2
	2: NOT mask-1

EXAMPLE
mask_op cc.ras region.ras cc_region.ras 0

The output cc_region.ras is the logical AND of cc.ras and region.ras. All pixels where either cc.ras or region.ras are 0, are marked as 0 in the output mask cc_region.ras.

INSTALLATION
Source code mask_op.c in ./src. For compilation adjust and use Makefile: Executable version mask_op in ../bin

AVAILABILITY
Uses type definition file typedef_ISP.h.

DESCRIPTION
Calculate logical operations on mask files stored in 8-bit Sun Raster of BMP format. The operations can either be AND, where corresponding pixels in both images must be greater than 0, OR, where either can be > 0, and the logical negation of mask-1. The value 0 is false and any value > 1 is TRUE. If the files are different sizes the output mask size is the size of mask-1.

OPTIONS
none

SEE ALSO
typedef_ISP.h, .

DIAGNOSTICS
All messages are generally self-explanatory.

NOTES
None.