Function grey

  • grey(image, options?): Image

  • Convert the current image to grayscale. The source image has to be RGB or RGBA. If there is an alpha channel you have to specify what to do:

    • keepAlpha : keep the alpha channel, you will get a GREYA image.
    • mergeAlpha : multiply each pixel of the image by the alpha, you will get a GREY image.

    Parameters

    • image: Image

      Original color image to convert to grey.

    • options: GreyOptions = {}

      The grey conversion options.

    Returns Image

    The resulting grey image.

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