Rotations

Perform image rotation by 90 degrees, clockwise and counter-clockwise. More...

int	rapp_rotate_cw_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Rotate an 8-bit image 90 degrees in clockwise direction.
int	rapp_rotate_ccw_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Rotate an 8-bit image 90 degrees in counter-clockwise direction.
int	rapp_rotate_cw_bin (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Rotate a binary image 90 degrees in clockwise direction.
int	rapp_rotate_ccw_bin (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Rotate a binary image 90 degrees in counter-clockwise direction.

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Detailed Description

Perform image rotation by 90 degrees, clockwise and counter-clockwise.

All images must be aligned.

Next section: Logical Margins

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Function Documentation

int rapp_rotate_cw_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Rotate an 8-bit image 90 degrees in clockwise direction.

Parameters:

[out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Source image width in pixels.
	height	Source image height in pixels.

Returns:

A negative error code on error, zero otherwise.

int rapp_rotate_cw_bin	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Rotate a binary image 90 degrees in clockwise direction.

Parameters:

[out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Source image width in pixels.
	height	Source image height in pixels.

Returns:

A negative error code on error, zero otherwise.

int rapp_rotate_ccw_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Rotate an 8-bit image 90 degrees in counter-clockwise direction.

Parameters:

[out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Source image width in pixels.
	height	Source image height in pixels.

Returns:

A negative error code on error, zero otherwise.

int rapp_rotate_ccw_bin	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Rotate a binary image 90 degrees in counter-clockwise direction.

Parameters:

[out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Source image width in pixels.
	height	Source image height in pixels.

Returns:

A negative error code on error, zero otherwise.