The RGBtoYUV command converts a color image with an RGB color representation to a YUV color representation. The following linear transformation is applied at each position in the image to the three color layers:

The alpha channel (layer 4), if present, is not affected.

The img parameter is the input image and must be of type ColorImage or ColorAImage.

inplace = truefalse

Specifies whether the operation is performed in-place. This can be used to avoid allocating memory. The default is false.

output = Image

Specifies a data structure into which the output is written. This can be used to avoid allocating memory. The size and number of layers must match that of the input. The dimensions of the output image are adjusted so that the row and column indices match the input. The default is NULL.