MtkResampleCubicConvolution.c File Reference

#include "MisrReProject.h"
#include "MisrUtil.h"
#include <stdlib.h>
#include <math.h>

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Functions
float	kernel (float d, float a)
MTKt_status	MtkResampleCubicConvolution (const MTKt_DataBuffer *Source, const MTKt_DataBuffer *Source_mask, const MTKt_DataBuffer *Line, const MTKt_DataBuffer *Sample, float A, MTKt_DataBuffer *Resampled, MTKt_DataBuffer *Resampled_mask)
	Resample source data at the given coordinates using interpolation by cubic convolution. More...

Function Documentation

kernel()

float kernel	(	float	d,
		float	a
	)

Definition at line 22 of file MtkResampleCubicConvolution.c.

MtkResampleCubicConvolution()

MTKt_status MtkResampleCubicConvolution	(	const MTKt_DataBuffer *	Source,
		const MTKt_DataBuffer *	Source_mask,
		const MTKt_DataBuffer *	Line,
		const MTKt_DataBuffer *	Sample,
		float	A,
		MTKt_DataBuffer *	Resampled,
		MTKt_DataBuffer *	Resampled_mask
	)

Resample source data at the given coordinates using interpolation by cubic convolution.

Convolution kernel used in this module is described in [1]

Returns

MTK_SUCCESS if successful.

Example:

In this example we resample source with source_mask and coordinates in line and sample using cubic convolution. Resampled output is in resampled and resampled_mask.

status = MtkResampleCubicConvolution(&source, &source_mask, &line, &sample, a, &resampled, &resampled_mask);

Note

References:

[1] Keys, "Cubic Convolution Interpolation for Digital Image Processing", IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. ASSP-29, NO. 6, December 1981.

Parameters

[in]	Source	Source data. (float)
[in]	Source_mask	Valid mask for source data. (uint8)
[in]	Line	Line coordinates. (float)
[in]	Sample	Sample coordinates. (float)
[in]	A	Convolution parameter (-1.0 <= A <= 0.0)
[out]	Resampled	Resampled data. (float)
[out]	Resampled_mask	Valid mask for resampled data

Definition at line 51 of file MtkResampleCubicConvolution.c.