10-05-2010, 09:50 AM
[quote name='Lomskij' timestamp='1286270583' post='3490']
Right, so these are the artifacts from a bad RAW converter and not the interpolation blocks, why I didn't think of that? Care to elaborate on which RAW converter produces such ugly artifacts so I could avoid it in the future? :-)
As I get it, you're basically refusing to see what I'm pointing at. Also I don't really understand why you always emphasize that detail is equal to luminance and chroma has nothing to do with that, when it's simply not true and shows a lack of insight in the matter .
I'm not talking about the colour accuracy here, but any chroma based details. Yes, these are called *details*, otherwise all B/W images would have exactly the same amount of details as the colour images. Or are you going to argue with this?
My point still stands, especially when your link very conveniently demonstrates an increase of sharpness on B/W sections of the photos only ;-)
[/quote]
Nonsense, it shows that detail is in luminance (dark and light differences). That black and white are extremes in luminance information is a given.
Now, instead of digging your heels in the sand, actually LOOK at the samples.
The 20 dollar bill. Is it black and white? Of course not. It is different gradations of green (not pure green, check that in PS if you like). We see a big increase in detail. The cable next to it. Metal strands against a saturated blue background. Big increase in detail. The brass screw part of the cable, it is a yellow in different shades. Big increase in "sharpness".
The dollar bill "head", Has a light blue bird figure next to it. Big increase in the feather pattern "sharpness".
The face itself, only browns (so all colours in different gradations). Clearly has much more detail/sharpness.
The car's dials. The red hans clearly are much "sharper", we see very clear aliasing stair stepping in them. You refuse to see that.
The chrome ball in the lever. It shows more "definition" everywhere, including where we have blue, red. The steering wheel also has all colour channels in different values, it is not black and white at all. Yet we see the shades of brown. blue clearly and see detail increase in equal amounts.
The brass key. The brown fake wood.
It all shows the same increase in sharpness, in aliasing, in stair stepping. That you want to keep saying it is only in black and white areas is your choice, it does not make it true.
Yes, detail is in luminance information.
Right, so these are the artifacts from a bad RAW converter and not the interpolation blocks, why I didn't think of that? Care to elaborate on which RAW converter produces such ugly artifacts so I could avoid it in the future? :-)
As I get it, you're basically refusing to see what I'm pointing at. Also I don't really understand why you always emphasize that detail is equal to luminance and chroma has nothing to do with that, when it's simply not true and shows a lack of insight in the matter .
I'm not talking about the colour accuracy here, but any chroma based details. Yes, these are called *details*, otherwise all B/W images would have exactly the same amount of details as the colour images. Or are you going to argue with this?
My point still stands, especially when your link very conveniently demonstrates an increase of sharpness on B/W sections of the photos only ;-)
[/quote]
Nonsense, it shows that detail is in luminance (dark and light differences). That black and white are extremes in luminance information is a given.
Now, instead of digging your heels in the sand, actually LOOK at the samples.
The 20 dollar bill. Is it black and white? Of course not. It is different gradations of green (not pure green, check that in PS if you like). We see a big increase in detail. The cable next to it. Metal strands against a saturated blue background. Big increase in detail. The brass screw part of the cable, it is a yellow in different shades. Big increase in "sharpness".
The dollar bill "head", Has a light blue bird figure next to it. Big increase in the feather pattern "sharpness".
The face itself, only browns (so all colours in different gradations). Clearly has much more detail/sharpness.
The car's dials. The red hans clearly are much "sharper", we see very clear aliasing stair stepping in them. You refuse to see that.
The chrome ball in the lever. It shows more "definition" everywhere, including where we have blue, red. The steering wheel also has all colour channels in different values, it is not black and white at all. Yet we see the shades of brown. blue clearly and see detail increase in equal amounts.
The brass key. The brown fake wood.
It all shows the same increase in sharpness, in aliasing, in stair stepping. That you want to keep saying it is only in black and white areas is your choice, it does not make it true.
Yes, detail is in luminance information.