int main(int argc, char *argv[])
{
int opt;
scale_fnctn = sq_linear_scale;
while ((opt = getopt(argc, argv, "hr:c:a:px")) != -1)
{
switch (opt)
{
case 'h':
print_usage(usage_text);
exit(EXIT_FAILURE);
case 'r':
sscanf(optarg, "%u", &rows);
break;
case 'c':
sscanf(optarg, "%u", &cols);
break;
case 'a':
sscanf(optarg, "%u", &averagelines);
break;
case 'p':
scale_fnctn = sq_power_scale;
break;
case 'x':
scale_fnctn = sq_no_scale;
break;
default:
print_usage(usage_text);
exit(EXIT_FAILURE);
}
}
//fprintf(stderr, "Allocating image\n");
imgbfr = malloc(sizeof(float) * rows * cols);
//fprintf(stderr, "Allocated image\n");
if(imgbfr == NULL)
{
sq_error_handle(ERR_MALLOC);
exit(EXIT_FAILURE);
}
//fprintf(stderr, "reading image\n");
int read_status = sq_read_img(stdin, imgbfr, rows, cols);
//fprintf(stderr, "read image\n");
if(read_status < 0)
{
free(imgbfr);
sq_error_handle(read_status);
exit(EXIT_FAILURE);
}
//fprintf(stderr, "Scaling image\n");
scale_fnctn(imgbfr, rows, cols);
//fprintf(stderr, "Scaled image\n");
// Now optionally average the lines as desired
if(averagelines > 0)
{
imgbfr_avg = malloc(sizeof(float) * rows/averagelines * cols);
sq_average_lines(imgbfr, rows, cols, imgbfr_avg, averagelines);
sq_write_pnm(stdout, imgbfr_avg, rows/averagelines, cols);
scale_fnctn(imgbfr_avg, rows/averagelines, cols);
free(imgbfr_avg);
}
else
{
sq_write_pnm(stdout, imgbfr, rows, cols);
free(imgbfr);
}
//fprintf(stderr, "Exiting image\n");
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
int opt;
while ((opt = getopt(argc, argv, "hr:c:x:y:")) != -1)
{
switch (opt)
{
case 'h':
print_usage(usage_text, arrlen);
exit(EXIT_SUCCESS);
case 'r':
sscanf(optarg, "%u", &rows);
break;
case 'c':
sscanf(optarg, "%u", &cols);
break;
case 'x':
sscanf(optarg, "%f", &width_chop_fraction);
break;
case 'y':
sscanf(optarg, "%f", &height_chop_fraction);
break;
default:
print_usage(usage_text, arrlen);
exit(EXIT_SUCCESS);
}
}
unsigned int col_first = cols * width_chop_fraction;
unsigned int col_last = cols * (1 - width_chop_fraction);
unsigned int col_count = col_last - col_first;
unsigned int row_first = rows * height_chop_fraction;
unsigned int row_last = rows * (1 - height_chop_fraction);
unsigned int row_count = row_last - row_first;
imgbfr = malloc(sizeof(float) * rows * cols);
if(imgbfr == NULL)
{
sq_error_handle(ERR_MALLOC);
exit(EXIT_FAILURE);
}
int read_status = sq_read_img(stdin, imgbfr, rows, cols);
if(read_status < 0)
{
free(imgbfr);
sq_error_handle(read_status);
exit(EXIT_FAILURE);
}
imgbfr_chopped = malloc(sizeof(float) * row_count * col_count);
if(imgbfr_chopped == NULL)
{
sq_error_handle(ERR_MALLOC);
exit(EXIT_FAILURE);
}
int chop_status = sq_imchop(imgbfr, imgbfr_chopped, rows, cols, width_chop_fraction, 0);
if(chop_status < 0)
{
free(imgbfr);
sq_error_handle(chop_status);
exit(EXIT_FAILURE);
}
fprintf(stderr, "Image chopped by %s - number of columns: %d, number of rows: %d\n", argv[0], col_count, row_count);
sq_write_img(stdout, imgbfr_chopped, row_count, col_count);
free(imgbfr);
free(imgbfr_chopped);
exit(EXIT_SUCCESS);
}