## NAME

         hist_slide - performs histogram slide

## SYNOPSIS

          #include <CVIPtoolkit.h>
          #include <CVIPimage.h>
          #include <CVIPmatrix.h>
          #include <CVIPhisto.h>

         Image* hist_slide(Image *input,int slide)

          <input> - pointer to an Image
          <slide> - amount of slide

## PATH

         $CVIPHOME/HISTOGRAM/hist_slide.c

## DESCRIPTION

         This function slides a histogram up if <slide>  is  positive
         or  down  if <slide> is negative. It requires CVIP_BYTE type
         input, and clips at 0 or 255.

## TYPES AND CONSTANTS

         None

## RETURN VALUES

         Pointer to the modified image

## HISTORY

         History information recorded: None

## EXAMPLE

          #include <CVIPtoolkit.h>
          #include <CVIPimage.h>
          #include <CVIPconvert.h>
          #include <CVIPview.h>
          #include "histogram.h"
          #define VIEWER "picture"
          #define VIDEO_APP "SunVideo &"

          void main()
          {
          Image *cvipImage;
          IMAGE_FORMAT format;
          char *inputfile,*outputfile;

          setDisplay_Image(VIEWER, "Default");

          print_CVIP("\n\t\tEnter the Input File Name:  ");
          inputfile =(char *) getString_CVIP();
          format = getFormat_CVIP(inputfile);
          cvipImage = read_Image(inputfile, 1);
          view_Image(cvipImage, inputfile);
          free(inputfile);
          /* the following call slides the histogram in the
          positive direction by 50 */
          cvipImage = hist_slide(cvipImage,50);
          print_CVIP("\n\t\tEnter the Output File Name:  ");
          outputfile = getString_CVIP();
          view_Image(cvipImage,outputfile);
          write_Image(cvipImage,outputfile,CVIP_NO,CVIP_NO,format,1);
          free(outputfile);
          }

## SEE ALSO

         libhisto

## AUTHOR

         Copyright (C) 1996 SIUE - by Scott E. Umbaugh and Kun Luo.