This exercise involves a couple of changes to an image. One change is the same as in the previous exercise – adjusting brightness and contrast on a portrait. The other is adjusting the iris of both eyes.
Here’s the original image:
And here it is with the first adjustment – altered to increase brightness and contrast:
The next step was to alter the eyes. I selected each of the eyes as one selection and then applied adjustments. This is a close-up of the eyes before any adjustment was made, for comparison purposes:
The first change was to increase the brightness and contrast. I don’t see any problems with this kind of adjustment:
Next up was increasing the saturation. I am starting to thing this is into alteration, rather than simple adjustment; though it’s pretty tame and ultimately isn’t really deviating from “real” in any significant or noticeable way:
Finally, I modified the hue on the eyes, and so changed their colour. This is where it is definitely in the realms of alteration, and is not a legitimate adjustment in the context of a standard portrait meant to represent what is “real”: