HI M - Histogram - within Masked area

PURPOSE

Computes a 128 level histogram of the area of an image which has a value >= 0.5 in a second mask image. Prints histogram in document file, results file, or on the terminal.

SEE ALSO

HI	[Histogram - output in Results file]
HI R	[HIstogram - output in Results file, use specified range.]
HI T	[Histogram - output on Terminal]
HI TR	[Histogram - output on Terminal, use specified range]
HI D	[Histogram - output in Document file]
HI DR	[Histogram - output in Document file, use specified Range]

USAGE

.OPERATION: HI M

.INPUT FILE: PIC001
[Enter the name of the file containing the image.]

.MASK FILE: MASK01
[Enter the name of the file containing the mask.]

.OUTPUT TO RESULTS FILE, DOC. FILE, OR TERMINAL? (R/D/T): T
[Output location.]

If ouput is sent to a document file SPIDER asks:

.DOCUMENT FILE: DOC000
[Enter the name for the document file that gets the histogram output.]

NOTES

1. A 128 bin histogram will be computed. The following information will be printed out at the user's terminal:

    
             FILE RANGE:                     .........            
             HISTOGRAM RANGE:                .........            
             FILE PIXELS:                    HIST. PIXELS:        
             NO. OF BINS:                    BIN SIZE:       
             HIST. MEAN:                     HIST. MODE:        
             HIST. S.D.:              
             

SUBROUTINES

HIST, GRAPHS

CALLER

UTIL1