title: YUV_420_888 (byte) format
body: <p>I capture an image on Android in YUV_420_888 format (YCbCr).</p>
  
  <p>Image dimension is <strong>4032 X 3024</strong> and I get three planes from the <strong>ImageReader</strong>.</p>
  
  <blockquote>
    <p>Y with 12192768 bytes<br> 
    U with 6096383 bytes <br> 
    V with 6096383 bytes</p>
  </blockquote>
  
  <p>My understanding is that for every pixel in <strong>Y</strong> there is a corresponding value in <strong>U/V</strong> planes with 2:1 ratio (2 pixel Y correspond to one pixel U/V).</p>
  
  <p>But doing the math <strong>12192768/2</strong> there is one byte missing in <strong>U/V</strong> plane.</p>
  
  <p>Why is that one byte missing? How is the relation between <strong>Y</strong> and <strong>U/V</strong> for Android <strong>camera2 YUV_420_888.</strong></p>