Contours.hpp File Reference

Contour extraction from binary float masks. More...

#include "Features.hpp"

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Namespaces
namespace	MayaFlux
	Main namespace for the Maya Flux audio engine.
namespace	MayaFlux::Kinesis
namespace	MayaFlux::Kinesis::Vision

Functions
void	MayaFlux::Kinesis::Vision::apply_contour_mask (std::span< float > pixels, uint32_t w, uint32_t h, uint32_t channels, const Contour &contour, float origin_x, float origin_y, float scale_x, float scale_y)
	Zero all pixels in pixels that fall outside contour.
std::vector< Contour >	MayaFlux::Kinesis::Vision::find_contours (std::span< const float > mask, uint32_t w, uint32_t h, float min_area=0.0F, uint32_t max_contours=0)
	Extract outer contours from a binary mask.

Detailed Description

Contour extraction from binary float masks.

Pure functions. No MayaFlux type dependencies.

Conventions

• Input masks are single-channel float where >= 0.5f is foreground
• Contour points are in normalised image coordinates [0, 1]
• 8-connectivity is used for contour tracing
• Area is normalised to [0, 1] relative to total image area (w * h)
• Perimeter is normalised to [0, 1] relative to image diagonal

Definition in file Contours.hpp.