Image Rotation

Functions
void	ne10_img_rotate_rgba_c (ne10_uint8_t *dst, ne10_uint32_t *dst_width, ne10_uint32_t *dst_height, ne10_uint8_t *src, ne10_uint32_t src_width, ne10_uint32_t src_height, ne10_int32_t angle)
	Specific implementation of ne10_img_rotate_rgba using plain C. More...
void	ne10_img_rotate_rgba_neon (ne10_uint8_t *dst, ne10_uint32_t *dst_width, ne10_uint32_t *dst_height, ne10_uint8_t *src, ne10_uint32_t src_width, ne10_uint32_t src_height, ne10_int32_t angle)
	Specific implementation of ne10_img_rotate_rgba using NEON SIMD capabilities. More...

Variables
void(*	ne10_img_rotate_rgba )(ne10_uint8_t *dst, ne10_uint32_t *dst_width, ne10_uint32_t *dst_height, ne10_uint8_t *src, ne10_uint32_t src_width, ne10_uint32_t src_height, ne10_int32_t angle)
	Image rotate of 8-bit data. More...

Detailed Description

Image rotate is a generic functionality in image processing. For C implementation, we take the cvGetQuadrangleSubPix function from OpenCV (http://opencv.org/) for reference.

This set of functions implements image rotate with bilinear interpolation algorithm for 8-bit data types.

Function Documentation

void ne10_img_rotate_rgba_c	(	ne10_uint8_t *	dst,
		ne10_uint32_t *	dst_width,
		ne10_uint32_t *	dst_height,
		ne10_uint8_t *	src,
		ne10_uint32_t	src_width,
		ne10_uint32_t	src_height,
		ne10_int32_t	angle
	)

Specific implementation of ne10_img_rotate_rgba using plain C.

Definition at line 212 of file NE10_rotate.c.

void ne10_img_rotate_rgba_neon	(	ne10_uint8_t *	dst,
		ne10_uint32_t *	dst_width,
		ne10_uint32_t *	dst_height,
		ne10_uint8_t *	src,
		ne10_uint32_t	src_width,
		ne10_uint32_t	src_height,
		ne10_int32_t	angle
	)

Specific implementation of ne10_img_rotate_rgba using NEON SIMD capabilities.

Definition at line 256 of file NE10_rotate.c.

Variable Documentation

void(* ne10_img_rotate_rgba) (ne10_uint8_t *dst, ne10_uint32_t *dst_width, ne10_uint32_t *dst_height, ne10_uint8_t *src, ne10_uint32_t src_width, ne10_uint32_t src_height, ne10_int32_t angle)

Image rotate of 8-bit data.

Parameters

[out]	*dst	point to the destination image
[out]	*dst_width	width of destination image
[out]	*dst_height	height of destination image
[in]	*src	point to the source image
[in]	src_width	width of source image
[in]	src_height	height of source image
[in]	angle	angle of rotate

The function extracts pixels from src at sub-pixel accuracy and stores them to dst. Points to ne10_img_rotate_rgba_c or ne10_img_rotate_rgba_neon.

Definition at line 62 of file NE10_init_imgproc.c.