Although you're looking for computational metrics rather than human perception ones, I think Joanne C's answer to that question nails both counts. See:

What parameters can I use to evaluate a "Perceptual Image Quality"?, answer #10431.

I'm marking this answer Community Wiki since it's not a direct answer — I encourage everyone to go read Joanne's answer.

(And I'm also not marking this question as a duplicate of that one, since while I think the answer is the same in this sense, there may be pragmatic just give you what you're asking for rather than disagreeing with the assumptions answers that differ from the answers from the human parameters.)

Although you're looking for computational metrics rather than human perception ones, I think Joanne C's answer to that question nails both counts. See:

What parameters can I use to evaluate a "Perceptual Image Quality"?, answer #10431.

I'm marking this answer Community Wiki since it's not a direct answer — I encourage everyone to go read Joanne's answer.

(And I'm also not marking this question as a duplicate of that one, since while I think the answer is the same in this sense, there may be pragmatic just give you what you're asking for rather than disagreeing with the assumptions answers that differ from the answers from the human parameters.)

Although you're looking for computational metrics rather than human perception ones, I think Joanne C's answer to that question nails both counts. See:

What parameters can I use to evaluate a "Perceptual Image Quality"?, answer #10431.

I'm marking this answer Community Wiki since it's not a direct answer — I encourage everyone to go read Joanne's answer.

(And I'm also not marking this as a duplicate, since while I think the answer is the same in this sense, there may be pragmatic just give you what you're asking for rather than disagreeing with the assumptions answers that differ from the answers from the human parameters.)

Although you're looking for computational metrics rather than human perception ones, I think Joanne C's answer to that question nails both counts. See:

What parameters can I use to evaluate a "Perceptual Image Quality"?, answer #10431.

I'm marking this answer Community Wiki since it's not a direct answer — I encourage everyone to go read Joanne's answer.

(And I'm also not marking this question as a duplicate of that one, since while I think the answer is the same in this sense, there may be pragmatic just give you what you're asking for rather than disagreeing with the assumptions answers that differ from the answers from the human parameters.)