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img2ascii.c

Go to the documentation of this file.

#include "sadie.h"
#include "proto.h"

/*----------------------------------------------------------------------------*/
/*-General Information--------------------------------------------------------*/
/*                                                                            */
/*   This function prints an image in ascii form to the session log.  The     */
/*   image must consists of DNs in the range from 0-255.  All DNs will be     */
/*   printed in integer form.                                                 */
/*----------------------------------------------------------------------------*/
/*-Interface Information------------------------------------------------------*/
void IMG2ASCII (
IMAGE  *in     /*  I   Pointer to the input image.                           */
/*----------------------------------------------------------------------------*/
) { register short i, j, k;
    char msg[SLEN];
    int value;

    /* if (TIMES) TIMING(T_IMG2ASCII); */
    if (NAMES) {
        MESSAGE('I',"");
        MESSAGE('I',"IMG2ASCII");
        MESSAGE('I',"");
        sprintf(msg," Input image:                       %s",in->text);
        MESSAGE('I',msg);
        MESSAGE('I'," ...............");
    }

    /* check input */
    if (!CHECKIMG(in)) {
        MESSAGE('E'," Can't identify image.");
        goto the_end;
    }
    
    /* Find the min and max values in the image */
    RANGE(in);
    
    /* Verify that the input image is valid */
    if (in->nbnd > 1) {
        MESSAGE('E'," Input image must be single band!");
        goto the_end;
    }
//    if (in->npix > 50) {
//        MESSAGE('E'," Input image must be no wider than 50 pixels!");
//        goto the_end;
//    }
    if (in->gmin < 0.0  ||  999.0 < in->gmax) {
        MESSAGE('E'," Input image must have integer DNs in the range 0-999!");
        goto the_end;
    }

    /* build ascii image */

    if (in->npix <= 50) {
        for (j=0; j<in->nlin; j++) {
            for (k=i=0,msg[i++]=' '; k<in->npix; k++,i=strlen(msg)) {
                value = (int) rnd((double)(in->data[0][j][k]));
                sprintf(msg+i,"%4d",value);
            }
            MESSAGE('I',msg);
        }
    } else {
        for (j=0; j<in->nlin; j++) {
            for (k=0; k<in->npix; k++) {
                value = (int) rnd((double)(in->data[0][j][k]));
                printf("%4d",value);
            }
            printf("\n");
        }
    }

        
    the_end:
    /* if (TIMES) TIMING(T_EXIT); */
}

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