getPixels() used to get LAB data from a RGB document always applies dithering?

Photoshop
1

I have dither=false off in my Color Settings/Conversion Options, but when I use getPixels({colorSpace: “Lab”}) on a RGB document, the LAB pixels I get back are the same pixel values I get if I use photoshop to convert the image to lab with dither=true.

2

Simple workaround is to duplicate doc, change mode to LAB, get pixels, close without saving. If you want to disable dithering ( for the changeMode, this doesn’t help with getPixels ) here is how you can check it and set it:

async function getDither() {
    const result = await batchPlay([{
        _obj: "get",
        _target: [
            { _ref: "property", _property: "colorSettings" },
            { _ref: "application", _enum: "ordinal", _value: "targetEnum" }
        ]
    }], {});
    return (result[0].colorSettings?.dither);
}

async function setDither(enabled) {
    await batchPlay([{
        _obj: "set",
        _target: [
            { _ref: "property", _property: "colorSettings" },
            { _ref: "application", _enum: "ordinal", _value: "targetEnum" }
        ],
        to: {
            _obj: "colorSettings",
            dither: enabled
        }
    }], {});
}
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