I couldn’t understand how to emphasis depth in a landscape and I didn’t find the example in the course book any help, so I cheated and used blur in the BW conversion.
..A few months later and the haze puzzle is resolved by PH on the forum..http://oca-student.com/node/103666#comment-57466
I have several examples of this but I didn’t understand what was being asked.
The second example, that of lightening a complexion was achieved by boosting the red channel. I hadn’t expected that result, but there it is.
For the garden image I used a photo of Niecepore Niepce’s garden which we visited on holiday. This conversion was predictable in that it only involved boosting the green channel.