The just noticeable difference (JND) model reflects the visibility limitations of the human visual system (HVS). which plays an important role in perceptual image/video processing and is commonly applied to perceptual redundancy removal. However. existing JND models are usually constructed by treating the color components of three channels equally. https://www.bekindtopets.com/limited-value-SharkBite-U648LF-Lead-Free-Brass-Push-to-Connect-45-Degree-Elbow-1-2-x-1-2-mega-super/