CHECKERS2

Section: User Commands (1)
Updated: October, 1989
Index Return to Main Contents
 

NAME

checkers2 - generate a checker board pattern of gray values  

SYNOPSIS

checkers2 -hi_gray -lo_gray -np_col -np_row -r rows -c cols [-b, -s, -i, -f] -n num_frames
Defaults: hi_gray: 128; lo_gray: 0; np_col:10; np_row:10; rows: 512; cols: 512; byte output; frames: 1  

DESCRIPTION

Checker produces a frame (or sequence) which contains a checker board of gray value patches.  

OPTIONS

-hi_gray bright_patch_value
(%d or %f) (default = 50% of maximum for the pixel type chosen (0.5 for PFFLOAT))
-lo_gray dim_patch_value
(%d or %f) (default = 0)
-np_col num_patches
(%d) (default = 10): number of patches in the column direction (across)
-np_row num_patches
(%d) (default = 10): number of patches in the row direction (down)
-r rows
(%d) (default = 512): the number of rows in the image.
-c colums
(%d) (default = 512): the number of colums in the image.
-b


 byte (unsigned) pixel format output (the default) (HIPS type PFBYTE)
-s


 short (unsigned) pixel format output (HIPS type PFSHORT)
-i


 integer (unsigned) pixel format output (HIPS type PFINT)
-f


 float pixel format output (HIPS type PFFLOAT)
-n
number_of_frames
(%d) - number of frames to output in a sequence (default = 1)
 

AUTHOR

Bill Johnston, LBL
Lawrence Berkeley Laboratory


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHOR

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