HOME GUIDE OPERATIONS DOCS ERRORS FORMATS INSTALL NEW TIPS WEB SITES

HI M - HIstogram - masked area

(5/1/96)

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 T [histogram - output on terminal]
HI D [histogram - output in document file]

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 level histogram will be computed. The following information will be printed out at the user's terminal:
     
              TOTAL PIXELS:        INSIDE MASK:      
              FILE RANGE:          .........     
              HISTOGRAM RANGE:     .........     
              HISTOGRAM MEAN:      MODE:         
              S.D.:                BIN SIZE:     
    

  2. The histogram is not placed in the image's histogram records.

SUBROUTINES

HISTM

CALLER

UTIL1

© Copyright Notice /       Enquiries: spider@wadsworth.org