- Based on Distance Transform of Sampled Functions
- O(N_PIXELS) time complexity
- Modifies buffer implace
- No dynamic memory allocation
- No external dependencies
- C99 compliant
- Can run on embedded microcontrollers
Self-explanatory, see distance_transform.h
// example
#include "distance_transform.h"
#define WIDTH 1000
int src_img[WIDTH * WIDTH];
int dst_img[(WIDTH + 1) * (WIDTH + 1)];
square_distance_transform(dst_img, src_img, WIDTH, WIDTH);make
./build/test
>>>
saved original.pgm
saved manhattan_distance_transform.pgm
saved square_distance_transform.pgm
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