rgba_to_hsv() [1/2]

MAYAFLUX_API void MayaFlux::Kinesis::Vision::rgba_to_hsv	(	std::span< const float >	rgba,
		std::span< float >	dst,
		uint32_t	w,
		uint32_t	h
	)

Convert RGBA to HSV writing into caller-supplied buffer.

Output is interleaved HSV, 3 floats per pixel. H in [0, 1], S and V in [0, 1]. Alpha channel is discarded.

Parameters

rgba	Interleaved RGBA span, size must be w * h * 4.
dst	Output span, size must be w * h * 3.
w	Image width in pixels.
h	Image height in pixels.

Definition at line 94 of file PixelOps.cpp.

{
    const size_t n = static_cast<size_t>(w) * h;
    std::for_each(std::execution::par_unseq,
        std::views::iota(size_t { 0 }, n).begin(),
        std::views::iota(size_t { 0 }, n).end(),
        [&](size_t i) {
            const glm::vec3 hsv = rgb_to_hsv({ rgba[i * 4], rgba[i * 4 + 1], rgba[i * 4 + 2] });
 
            dst[i * 3] = hsv.x;
            dst[i * 3 + 1] = hsv.y;
            dst[i * 3 + 2] = hsv.z;
        });
}

References dst, h, and MayaFlux::Kinesis::rgb_to_hsv().

Referenced by rgba_to_hsv(), and MayaFlux::Kinesis::Vision::VisionExecutor::run().

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