Yeah, High quality exports (definitely from Lightroom) are normally YCrCb444. You don't always need it, but often you do if you really care about fidelity. I k

Yeah, High quality exports (definitely from Lightroom) are normally YCrCb444. You don't always need it, but often you do if you really care about fidelity. I know several imaging apps have the ability to select which subsampling type to use as well.