rc_contour.h File Reference

RAPP Compute layer contour chain code generation. More...

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Functions
RC_EXPORT int	rc_contour_4conn_bin (unsigned origin[2], char *restrict contour, int len, const uint8_t *restrict buf, int dim, int width, int height)
	4-connectivity contour chain code.
RC_EXPORT int	rc_contour_8conn_bin (unsigned origin[2], char *restrict contour, int len, const uint8_t *restrict buf, int dim, int width, int height)
	8-connectivity contour chain code.

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Detailed Description

RAPP Compute layer contour chain code generation.

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Function Documentation

RC_EXPORT int rc_contour_4conn_bin	(	unsigned	origin[2],
		char *restrict	contour,
		int	len,
		const uint8_t *restrict	buf,
		int	dim,
		int	width,
		int	height
	)

4-connectivity contour chain code.

Parameters:

[out]	origin	Start coordinate of the contour.
[out]	contour	Chain code contour string.
	len	Length in bytes of the contour string.
[in]	buf	Input pixel buffer.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.

Returns:

The length of contour string excluding the NUL-termination.

RC_EXPORT int rc_contour_8conn_bin	(	unsigned	origin[2],
		char *restrict	contour,
		int	len,
		const uint8_t *restrict	buf,
		int	dim,
		int	width,
		int	height
	)

8-connectivity contour chain code.

Parameters:

[out]	origin	Start coordinate of the contour.
[out]	contour	Chain code contour string.
	len	Length in bytes of the contour string.
[in]	buf	Input pixel buffer.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.

Returns:

The length of contour string excluding the NUL-termination.