Obviously, the rates for these images are the same across all codecs. Choosing the rate for such comparison is also a little tricky. If you choose a rate that p

Obviously, the rates for these images are the same across all codecs. Choosing the rate for such comparison is also a little tricky. If you choose a rate that people would use to make their image look really good (which how most people compress images), then you have a realistic use case, but nobody can see much difference. If you choose too low a rate, then all images look really ugly. So I tried picking a rate where the resulting images are tolerable, but low enough that differences across codecs are easily noticeable.