/**
* Location of chroma samples.
*
- * Illustration showing the location of the first chroma sample,
- * the left shows only luma, the right
- * shows the location of the chroma samples, the 2 could be imagined to overlay
+ * Illustration showing the location of the first (top left) chroma sample of the
+ * image, the left shows only luma, the right
+ * shows the location of the chroma sample, the 2 could be imagined to overlay
* each other but are drawn seperately due to limitations of ASCII
* ______ ______
* |X X ... |3 4 X ... X are luma samples,