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CUJJUN93.ZIP
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1106084A
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1993-04-08
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52 lines
/*******************************************
*
* erode_image_array(..
*
* This function erodes pixels. If a pixel
* equals value and has more than threshold
* neighbors equal to 0, then set that
* pixel in the output to 0.
*
*******************************************/
erode_image_array(the_image, out_image,
value, threshold)
short the_image[ROWS][COLS],
out_image[ROWS][COLS],
threshold,
value;
{
int a, b, count, i, j, k,
length, width;
/***************************
*
* Loop over image array
*
****************************/
for(i=0; i<ROWS; i++)
for(j=0; j<COLS; j++)
out_image[i][j] = the_image[i][j];
printf("\n");
for(i=1; i<ROWS-1; i++){
if( (i%10) == 0) printf("%3d", i);
for(j=1; j<COLS-1; j++){
if(the_image[i][j] == value){
count = 0;
for(a=-1; a<=1; a++){
for(b=-1; b<=1; b++){
if(the_image[i+a][j+b] == 0)
count++;
} /* ends loop over b */
} /* ends loop over a */
if(count > threshold) out_image[i][j] = 0;
} /* ends if the_image == value */
} /* ends loop over j */
} /* ends loop over i */
} /* ends erode_image_array */