This crate provides efficient and compile-time checked calculations of contour moments. It strives to be as compatible to the corresponding OpenCV functions as possible while maintaining a "rusty" workflow. The computed order of moments is adjustable: You pay only for those moments that you require.
```rust use imagemoments::{Moments, Spatial}; use approx::assertabsdiffeq;
fn main() { // Points defining the contour let points = [ (53, 19), (52, 20), (49, 20), // [...] (60, 25), (54, 19), ];
// Calculate all spatial (aka "raw") contour moments up to the third order
let moments: Spatial<f64, 3> = points.iter().collect();
// Compare with those values generated by OpenCV
assert_abs_diff_eq!(moments.get::<0, 0>(), 703.0);
assert_abs_diff_eq!(moments.get::<1, 0>(), 52175.166666666664);
assert_abs_diff_eq!(moments.get::<0, 1>(), 25661.5);
assert_abs_diff_eq!(moments.get::<2, 0>(), 4084450.6666666665);
assert_abs_diff_eq!(moments.get::<1, 1>(), 2024477.75);
assert_abs_diff_eq!(moments.get::<0, 2>(), 1071256.0);
assert_abs_diff_eq!(moments.get::<3, 0>(), 332589780.65000004);
assert_abs_diff_eq!(moments.get::<2, 1>(), 166738807.83333334);
assert_abs_diff_eq!(moments.get::<1, 2>(), 89124447.63333333);
assert_abs_diff_eq!(moments.get::<0, 3>(), 50269189.75);
// This will fail at compile time because it is not covered by the third order:
// assert_abs_diff_eq!(moments.get::<0, 4>(), 50269189.75);
} ```
Licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.