SAT

Summed Area Tables. More...

Functions
AFAPI array	sat (const array &in)
	C++ Interface wrapper for summed area tables. More...
AFAPI af_err	af_sat (af_array *out, const af_array in)
	C Interface wrapper for summed area tables. More...

Detailed Description

Summed Area Tables.

Given an image \( I: (x,y) \mapsto i \) where i is pixel intensity at position \((x, y)\).

\(S(x, y) = i(x, y) + S(x-1, y) + S(x, y-1) - S(x-1, y-1)\)

The output array of this function will have \( S(x, y) \) values at their corresponding locations, \((x,y)\)

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Function Documentation

AFAPI af_err af_sat	(	af_array *	out,
		const af_array	in
	)

C Interface wrapper for summed area tables.

Parameters

[out]	out	is the summed area table on input image(s)
[in]	in	is the input array

Returns

AF_SUCCESS if the sat computation is successful, otherwise an appropriate error code is returned.

AFAPI array af::sat

(

const array &

in

)

C++ Interface wrapper for summed area tables.

Parameters

[in]

in

is the input array

Returns

the summed area table of input image