rgba_to_gray() [2/2]

MAYAFLUX_API std::vector< float > MayaFlux::Kinesis::Vision::rgba_to_gray	(	std::span< const float >	rgba,
		uint32_t	w,
		uint32_t	h
	)

Convert RGBA to luminance gray using BT.601 coefficients.

Output is one float per pixel. Alpha channel is discarded. Coefficients: R*0.299 + G*0.587 + B*0.114

Parameters

rgba	Interleaved RGBA span, size must be w * h * 4.
w	Image width in pixels.
h	Image height in pixels.

Returns

Grayscale float vector of length w * h.

Definition at line 87 of file PixelOps.cpp.

{
    std::vector<float> out(static_cast<size_t>(w) * h);
    rgba_to_gray(rgba, out, w, h);
    return out;
}

References h, and rgba_to_gray().

Here is the call graph for this function: