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F.15. CODE LISTINGS FOR CHAPTER 15
679
/**************************************
*
*
Free the memory for the
*
two dimensional small array.
*
***************************************/
for(i=0; i<size; i++)
free(small[i]);
} /* ends compare */
Listing 15.1 - The Texture Subroutines
/********************************************
*
*
file texture.c
*
*
Functions: This file contains
*
main
*
*
Purpose:
*
This file contains the main calling
*
routine for texture subroutines.
*
*
External Calls:
*
imageio.c - create_image_file
*
read_image_array
*
write_image_array
*
get_image_size
*
get_bitsperpixel
*
allocate_image_array
*
free_image_array
*
txtrsubs.c - sigma
*
skewness
*
amean
*
adifference
*
hurst
*
compare
*
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680
APPENDIX F. SOURCE CODE LISTINGS
*
Modifications:
*
12 August 1993 - created
*
27 August 1998 - modified to work on
*
entire images at once.
*
19 September 1998 - modified to work with
*
all I O routines in imageio.c.
*
********************************************/
#include "cips.h"
short **the_image;
short **out_image;
main(argc, argv)
int argc;
char *argv[];
{
char name1[80], name2[80];
int size, t, type, v;
long bits_per_pixel, length, width;
if(argc < 7){
show_texture_usage();
exit(0);
}
strcpy(name1, argv[1]);
strcpy(name2, argv[2]);
t
= atoi(argv[4]);
v
= atoi(argv[5]);
size = atoi(argv[6]);
if(does_not_exist(name1)){
printf("\nERROR input file %s does not exist",
name1);
exit(0);
}
get_image_size(name1, &length, &width);
get_bitsperpixel(name1, &bits_per_pixel);
the_image = allocate_image_array(length, width);
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F.15. CODE LISTINGS FOR CHAPTER 15
681
out_image = allocate_image_array(length, width);
create_image_file(name1, name2);
read_image_array(name1, the_image);
if(strncmp(argv[3], "compare", 3) == 0){
read_image_array(name1, out_image);
compare(the_image, out_image,
t, v, size,
length,
width,
bits_per_pixel);
} /* ends if compare case */
if(strncmp(argv[3], "hurst", 3) == 0)
hurst(the_image, out_image,
size,
length,
width,
bits_per_pixel);
if(strncmp(argv[3], "adifference", 3) == 0)
adifference(the_image,
out_image,
size,
length,
width);
if(strncmp(argv[3], "amean", 3) == 0)
amean(the_image, out_image,
size,
length,
width,
bits_per_pixel);
if(strncmp(argv[3], "skewness", 3) == 0){
size = atoi(argv[4]);
t
= atoi(argv[5]);
v
= atoi(argv[6]);
skewness(the_image, out_image,
size, t, v,
length,
width,
bits_per_pixel);
} /* ends skewness case */
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682
APPENDIX F. SOURCE CODE LISTINGS
if(strncmp(argv[3], "sigma", 3) == 0){
size = atoi(argv[4]);
t
= atoi(argv[5]);
v
= atoi(argv[6]);
sigma(the_image, out_image,
size, t, v,
length,
width,
bits_per_pixel);
} /* ends sigma case */
write_image_array(name2, out_image);
free_image_array(out_image, length);
free_image_array(the_image, length);
} /* ends main */
show_texture_usage()
{
printf("\n\nNot enough parameters:");
printf("\n");
printf("\n
usage: texture in-file out-file type ");
printf("threshold? threshold-value size");
printf("\n
recall type: sigma
skewness");
printf("\n
amean
adifference");
printf("\n
hurst
compare");
printf("\n
threshold?
1-threshold on");
printf("\n
2-threshold off\n");
printf("\n
usage for compare:");
printf("\n
texture in-file out-file compare ");
printf("line element size");
printf("\n "
"\ntexture in-file out-file compare line element size"
"\ntexture in-file out-file hurst x x size (3 5 or 7)"
"\ntexture in-file out-file adifference x x size"
"\ntexture in-file out-file amean x x size"
"\ntexture in-file out-file skewness size "
"threshold(0,1) high-threshold"
"\ntexture in-file out-file sigma size "
"threshold(0,1) high-threshold");
}
Listing 15.2 - The texture Program
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F.16. CODE LISTINGS FOR CHAPTER 16
683
F.16 Code Listings for Chapter 16
/***********************************************
*
* file cstereo.c
*
* Functions: This file contains
*
main
*
fill_line
*
initialize_pattern
*
lengthen_pattern
*
no_change
*
shorten_pattern
*
get_random_values
*
random_substitution
*
test_print_line
*
* Purpose:
*
This file contains a program that will
*
make character based stereograms.
*
* External Calls:
*
none
*
* Modifications:
*
7 February 1995 - created
*
*************************************************/
#include "cips.h"
#define PATTERN_START 48 /* the zero character
*/
#define PATTERN_END
122 /* the small z character */
#define KONSTANT
2
#define ASCII_SIZE
256
void fill_line();
void initialize_pattern();
void lengthen_pattern();
void no_change();
void shorten_pattern();
void get_random_values();
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684
APPENDIX F. SOURCE CODE LISTINGS
void random_substitution();
void test_print_line();
main(argc, argv)
char *argv[];
int argc;
{
char *depth_line,
*pattern,
*processed_pattern,
*pdest,
response[80];
char last_character,
this_character;
FILE *depth_file,
*processed_pattern_file,
*stereo_file;
int current_width,
j,
index,
location,
max_width,
pattern_width,
pp_index,
width;
if(argc != 6){
printf(
"\nusage: cstereo pattern-width width-of-line"
"\n
depth-file-name "
"stereo-file-name "
"\n
processed-pattern-file-name"
"\n");
exit(1);
}
pattern_width = atoi(argv[1]);
width
= atoi(argv[2]);
pattern
= malloc(KONSTANT*width);
depth_line
= malloc(KONSTANT*width);
F.16. CODE LISTINGS FOR CHAPTER 16
685
processed_pattern = malloc(KONSTANT*width);
if((depth_file = fopen(argv[3], "rt")) == NULL){
printf(
"\ncstereo: Error opening input file %s\n",
argv[3]);
exit(3);
}
if((stereo_file = fopen(argv[4], "wt")) == NULL){
printf(
"\ncstereo: Error opening output file %s\n",
argv[4]);
exit(4);
}
if((processed_pattern_file =
fopen(argv[5], "wt")) == NULL){
printf(
"\ncstereo: Error opening temp file %s\n",
argv[5]);
exit(5);
}
/******************************************
*
*
This is the major loop of the program.
*
It reads one line at a time from the
*
depth file, processes that one line,
*
and writes the resulting pattern to the
*
processed pattern file.
*
******************************************/
while(fgets(depth_line,
KONSTANT*width,
depth_file)){
fill_line(pattern, KONSTANT*width);
fill_line(processed_pattern, KONSTANT*width);
initialize_pattern(pattern,
&current_width,
&max_width,
pattern_width,
686
APPENDIX F. SOURCE CODE LISTINGS
&index);
/*******************************************
*
*
Loop through the characters in the
*
depth_line. Call one of the three
*
processing routines based on the
*
relationship between the last character
*
and this character.
*
*******************************************/
last_character = depth_line[0];
pp_index = 0;
for(j=0; j<width; j++){
this_character = depth_line[j];
if(this_character == ’\n’)
this_character = last_character;
if(this_character > last_character)
shorten_pattern(
(this_character-last_character),
pattern, &index, &current_width,
width);
if(this_character < last_character)
lengthen_pattern(
(last_character-this_character),
pattern, &index, &current_width,
&width, &max_width);
/****************************************
*
*
Perform the no_change in every
*
pass. Do it after you have done
*
the shorten and lenghten pattern.
*
****************************************/
F.16. CODE LISTINGS FOR CHAPTER 16
687
no_change(pattern, processed_pattern,
pp_index, current_width, &index);
pp_index++;
last_character = depth_line[j];
} /* ends loop over j */
pdest
= strchr(processed_pattern, ’\0’);
location = pdest - processed_pattern;
processed_pattern[location] = ’\n’;
fputs(processed_pattern,
processed_pattern_file);
random_substitution(processed_pattern, width);
fputs(processed_pattern, stereo_file);
}
/* ends the major loop */
fclose(depth_file);
fclose(processed_pattern_file);
fclose(stereo_file);
free(pattern);
free(depth_line);
free(processed_pattern);
return(111);
} /* ends main
*/
/***********************************************
*
*
shorten_pattern(...
*
*
This funtion shortens the pattern by
*
deleting an element from it. For example,
*
if the input pattern is abcdefg,
*
the output pattern could be abcfg.
*
688
APPENDIX F. SOURCE CODE LISTINGS
***********************************************/
void shorten_pattern(size, pattern, index,
current_width, width)
char *pattern;
int size, *index, *current_width, width;
{
char *temp_pattern;
int i, new_index, new_width;
temp_pattern = malloc(KONSTANT*width);
for(i=0; i<width; i++)
temp_pattern[i] = pattern[i];
fill_line(pattern, width);
new_index = 0;
new_width = *current_width - size;
/*********************************************
*
*
Increase the index by the amount we want
*
to shorten the pattern.
Then copy the
*
temp_pattern back to the pattern skipping
*
over parts of the pattern by the amount
*
we want to shorten it.
*
*********************************************/
*index = (*index + size) % (*current_width);
for(new_index=0; new_index<new_width; new_index++){
pattern[new_index] = temp_pattern[*index];
*index = *index + 1;
if(*index >= *current_width)
*index = 0;
} /* ends loop over new_index */
*current_width = new_width;
*index
= 0;
free(temp_pattern);
} /* ends shorten_pattern */
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