The fine article shows the low-res input and high-res output photos, but conspicuously does not show a high-res original from whence the low-res input was derived.
Without comparing a high-res original photograph to the high-res output photograph, we do not know if this fine technique is capable of producing nice-looking high-res imagery, or if it is capable of reproducing how an image of the subject would have looked like had it been taken in higher resolution.
In other words, does the output of the technique match the actual object in the photograph?
Without comparing a high-res original photograph to the high-res output photograph, we do not know if this fine technique is capable of producing nice-looking high-res imagery, or if it is capable of reproducing how an image of the subject would have looked like had it been taken in higher resolution.
In other words, does the output of the technique match the actual object in the photograph?