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Practical Algorithms for Image Analysis
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MATHMAKE.C
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C/C++ Source or Header
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1999-09-11
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926b
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44 lines
#include <stdio.h>
#include <math.h>
#define scale 1024
int basis[91];
int cost[360];
main(void) {
int i;
printf("#define costScale %d\n", scale);
printf("int cost[] = {\n ");
for (i=0; (i <= 90); i++) {
basis[i] = cos((double)i * .0174532925) * scale;
}
for (i=0; (i < 90); i++) {
printf("%d,\n ", cost[i] = basis[i]);
}
for (i=90; (i < 180); i++) {
printf("%d,\n ", cost[i] = -basis[180-i]);
}
for (i=180; (i < 270); i++) {
printf("%d,\n ", cost[i] = -basis[i-180]);
}
for (i=270; (i < 359); i++) {
printf("%d,\n ", cost[i] = basis[360-i]);
}
printf("%d\n", cost[359] = basis[1]);
printf("};\n");
printf("#define sintScale %d\n", scale);
printf("int sint[] = {\n ");
for (i=0; (i<360); i++) {
int val;
val = cost[(i + 270) % 360];
if (i != 359) {
printf("%d,\n ", val);
} else {
printf("%d\n", val);
}
}
printf("};\n");
}