[xxyyzz97]

Process photo (冲印照片) is contone, similar to analogue. Printing is using halftone, similar to digital. Color scanner can be define as an analogue to digital converter. Current digital camera photo is the same as the output of color scanner.
Using a digital photo to produce a process photo (冲印照片), this can be consider as a digital to analogue process.
A high resolution digital photo is similar to using a high scanning resolution to scan a process photo.

[xxyyzz97]

作者: Memuriko

i agree with thits words "Using a digital photo to produce a process photo, this can be consider as a digital to analogue process.". but, it's about using a digital photo to produce a linked network template for printing and not directly production.
in this post, its master wanna descript a so call...

I read Chinese and I just don't type Chinese on PC.
Thanks your reply and post it so EARLY in the morning. I suppose you think I agree what is the theory quoted by the post owner of this thread. Otherwise I will not have that details reply to my post.
In my post, I just want to express the basic theory (in my understanding) of a process photo, digital photo and the process of conversion.
How the others going to interpret or implement it, this is out of my control. I don't have any will or obligation to make the others to agree what I said.
I also trying not to discuss other person's attitude on the web, for me this is meaningless. Otherwise, I will get heart attack all the time.
In theory, from one form transform to another, there is no 100% transform.
There is always some losses in somewhere. How people accept the result of transform do not has a definite answer, which is depends on what is the degree of acceptance in tolerances. For example, in color transform, someone accept delta 5 is the acceptance tolerance and someone need a delta at 2. Can I said the one accept delta 5 is wrong?
In photo transform, I will say the transform is not a strict forward conversion. There are a lot smoothing, enhancement, noise effects included. The final result wanted is having an acceptable photo.
As the same explained before, how good would be the result, this still depends on what is the specification of acceptance.
Another example may be much more easy to understand. I ask a person how much who need to spend for a month. A normal working person may only need RMB3000 in major city in China. But if I ask a person in US, who may need to have US2000 for a month.

At last, even my reply is not that long and details can compare with your reply. I hope this can compensate your hard working on your reply.