Update and optimize the implementation.

Full Changelog: v1.6.0...v1.6.2

Add a new metric, Context-Measure.

Full Changelog: v1.5.1...v1.6.0

Add human correction effort measure.

Full Changelog: v1.5.0...v1.5.1

v1.5.0: Add size-invariance variants.

Full Changelog: v1.4.4...v1.5.0

v1.4.4

Full Changelog: v1.4.3...v1.4.4

v1.4.3

Full Changelog: v1.4.2...v1.4.3

Add the `normalize` argument for the FmeasureV2 to control whether data preprocessing is used.

Full Changelog: v1.4.1...v1.4.2

More metrics.

Add some new metrics, such as Multi-Scale IoU (NOTE: The threshold selection differs slightly from the original implementation.).

Full Changelog: v1.4.0...v1.4.1

More metrics and more feature supports.

Full Changelog: v1.3.1...v1.4.0

Fixed possible numerical overflow during centroid calculation in the original implementation.

Full Changelog: v1.3.0...v1.3.1