Get the image pitch (byte distance between rows), in bytes.
Warning: This pitch can be, or not be, a negative integer.
When the image has layout constraint LAYOUT_VERT_FLIPPED,
it is always kept <= 0 (if the image has data).
When the image has layout constraint LAYOUT_VERT_STRAIGHT,
it is always kept >= 0 (if the image has data).
Get the image pitch (byte distance between rows), in bytes.
Warning: This pitch can be, or not be, a negative integer. When the image has layout constraint LAYOUT_VERT_FLIPPED, it is always kept <= 0 (if the image has data). When the image has layout constraint LAYOUT_VERT_STRAIGHT, it is always kept >= 0 (if the image has data).