Lenses and sharpening

On 10/5/2014 2:51 PM, nospam wrote:
In article , PeterN
wrote:

I gaae him some common uses. He typically uses "edge case' to give him
wriggle room.

wrong again.

what i call an edge case is an edge case and what you're calling common
can be done *without* lab more easily and with better quality results.

in other words, you're blaming others for your own lack of knowledge
and unwillingness to learn.


Well then explain with facts and detail.
Warning. I have Dan's book and will use it as a reference.

--
PeterN

On 2014.10.05, 14:42 , PeterN wrote:

We went through all this some many months ago. I demonstrated clearly
that the amount of 'loss' was negligible in practical terms.


I would use the terem "color change." anstead of loss.

Any change is a quality loss. Whether that is colour difference, tone,
brightness, sharpness ... whatever, it's a loss.

--
Among Broad Outlines, conception is far more pleasurable
than “carrying [the children] to fruition.”
Sadly, “there’s a high infant mortality rate among
Broad Outlines—they often fall prey to Nonstarters.”
"Bestiary of Intelligence Writing" - CIA

On 10/5/2014 3:57 PM, Eric Stevens wrote:
On Sun, 05 Oct 2014 14:57:51 -0400, nospam
wrote:

In article , PeterN
wrote:

However, LAB is great for color changes that maintain subtle
tonality. e.g channel swapping.

you must be kidding.

Why?




--
PeterNBecause I posted it, and he would rther argue.

On 10/5/2014 5:20 PM, nospam wrote:
In article , Eric Stevens
wrote:

However, LAB is great for color changes that maintain subtle
tonality. e.g channel swapping.

you must be kidding.

Why?

channel swapping is hardly subtle, *especially* in lab.


Who said channel swapping was subtle.
Do learn to read.

--
PeterN

On Sun, 05 Oct 2014 17:20:44 -0400, nospam
wrote:

In article , Eric Stevens
wrote:

However, LAB is great for color changes that maintain subtle
tonality. e.g channel swapping.

you must be kidding.

Why?

channel swapping is hardly subtle, *especially* in lab.

You must be very clumsy.
--

Regards,

Eric Stevens

On 10/5/2014 6:57 PM, Alan Browne wrote:
On 2014.10.05, 14:42 , PeterN wrote:

We went through all this some many months ago. I demonstrated clearly
that the amount of 'loss' was negligible in practical terms.


I would use the terem "color change." anstead of loss.

Any change is a quality loss. Whether that is colour difference, tone,
brightness, sharpness ... whatever, it's a loss.


Then you are using a different definition of quality. Certainly you are
not saying one cannot have a change for the better.

--
PeterN

In article , PeterN
wrote:

However, LAB is great for color changes that maintain subtle
tonality. e.g channel swapping.

you must be kidding.

Why?

channel swapping is hardly subtle, *especially* in lab.

Who said channel swapping was subtle.

you did.

In article , Eric Stevens
wrote:

However, LAB is great for color changes that maintain subtle
tonality. e.g channel swapping.

you must be kidding.

Why?

channel swapping is hardly subtle, *especially* in lab.

You must be very clumsy.

nope.

In article , PeterN
wrote:


I gaae him some common uses. He typically uses "edge case' to give him
wriggle room.

wrong again.

what i call an edge case is an edge case and what you're calling common
can be done *without* lab more easily and with better quality results.

in other words, you're blaming others for your own lack of knowledge
and unwillingness to learn.

Well then explain with facts and detail.
Warning. I have Dan's book and will use it as a reference.

that's your problem. dan is wrong and reading his books has led you
astray.

if you read other books, you'll see that they consistently prove just
how much of an idiot dan really is. i've mentioned two such books in
this thread and other books in other threads.

In article , PeterN
wrote:

You have never noticed the ease of a color change in LAB, compared to
making a similar color change in RGB.

YOu have never brought out color using LAB that could not easily be
brought out in RGB.

nonsense.

you just don't know how to do it in rgb.

Well let's see a FACTUAL comparison.

read the books i've already mentioned.

you won't, because you only want to argue.