Run with cargo bench.
Result on i9-9900K (3.60 GHz) + 32GB RAM
image-rs load time: [2.0388 ms 2.0668 ms 2.0973 ms]
zune-image load time: [1.1924 ms 1.2063 ms 1.2206 ms]
image-rs render time: [3.0728 ms 3.1115 ms 3.1531 ms]
zune-image render time: [1.7630 ms 1.7722 ms 1.7814 ms]