scale

Scale an input image. More...

Functions
AFAPI array	scale (const array &in, const float scale0, const float scale1, const dim_t odim0=0, const dim_t odim1=0, const interpType method=AF_INTERP_NEAREST)
	C++ Interface for scaling an image. More...
AFAPI af_err	af_scale (af_array *out, const af_array in, const float scale0, const float scale1, const dim_t odim0, const dim_t odim1, const af_interp_type method)
	C Interface for scaling an image. More...

Detailed Description

Scale an input image.

Scale is the same functionality as af::resize except that the scale function uses the transform kernels. The other difference is that scale does not set boundary values to be the boundary of the input array. Instead these are set to 0.

Scale is a special case of the af::transform function.

Function Documentation

af_scale()

AFAPI af_err af_scale	(	af_array *	out,
		const af_array	in,
		const float	scale0,
		const float	scale1,
		const dim_t	odim0,
		const dim_t	odim1,
		const af_interp_type	method
	)

C Interface for scaling an image.

Parameters

[out]	out	will contain the scaled image
[in]	in	is input image
[in]	scale0	is amount by which the first dimension is scaled
[in]	scale1	is amount by which the second dimension is scaled
[in]	odim0	is the first output dimension
[in]	odim1	is the second output dimension
[in]	method	is the interpolation type (Nearest by default)

Returns

AF_SUCCESS if the color transformation is successful, otherwise an appropriate error code is returned.

scale()

AFAPI array scale	(	const array &	in,
		const float	scale0,
		const float	scale1,
		const dim_t	odim0 = 0,
		const dim_t	odim1 = 0,
		const interpType	method = AF_INTERP_NEAREST
	)

C++ Interface for scaling an image.

Parameters

[in]	in	is input image
[in]	scale0	is amount by which the first dimension is scaled
[in]	scale1	is amount by which the second dimension is scaled
[in]	odim0	is the first output dimension
[in]	odim1	is the second output dimension
[in]	method	is the interpolation type (Nearest by default)

Returns

the scaled image