Recent content by Sailor_Moon

While D65 is a quite good "fire an forget" solution for simple setups, deviating from that white point is not so uncommon, especially in the graphic industry. The display white point to choose depends on the actual environment/ color matching conditions. Furthermore the effects of observer...

D50 ist the communication standard for the ICC workflow. The characterization data is recorded under that illumination for reflective measurements (by offsetting the reflection values against its constructed SPD) or chromatically adapted in the emissive case from the actual display white point...

I'm very busy at the moment. Will answer your questions as soon as possible but it may take one day - but already one short hint: If you carefully look at the calibration process you will see that it consists of two parts: The calibration itself (will only display neutral tones) which linearizes...

It doesn't matter. Games are not colormanaged. There will be no transformations from and to a PCS based on participating profiles. Maximum you can achive is to maintain the linearization data contained in the display profiles vcgt (only if you don't have a display that can be...

Looking at the pictures there is no difference between the two samples. The greenish-magenta-shift (may be enhanced in the overclockers.ru image due to different exposure/ aperture settings) is quite typical for an A-TW polarizer. If you would place a "non A-TW" IPS display aside (same...

You could try Argyll (most simply via dispcalgui) to enhance the linearization. The generic W-LED characterization is adequate. Please keep in mind that in your configuration (WLED and WCG-CCFL screen) a calibration based on the same whitepoint target will almost certainly not lead to a visual...

We must analyze the problem further. Apart from the whitepoint itself it seems that the greybalance is not ideal (dark grays are distorted) - although the i1 Display Pro has a very good repsonse in the shadows. Which calibration software have you used? What was the target tone curve ("gamma")...

If the color gamut of a WLED model is sufficient for your workflow there is no further limitation in using such a backlight solution. The visual result of an additive color mixture only depends on the color stimulus of the base colors and not their spectrum (your retina contains only three kinds...

A display ICC profile that was created during a software calibration consists of two parts - a colorimetric description of the actual behaviour of your display and linearization data for the videocard LUT that is loaded during system start. Games don't implement a color management - so it's only...

The CIE XYZ color space isn't perceptual uniform. Even CIELAB doesn't achieve this target despite major improvements: The simple euclidian color distance overvalues color differences in saturated colors compared to neutral colors. In order to attenuate this situation modified formulas were...

As I said: A 8bit (per channel) signal can't provide completely smooth color transistions - even if we presume high bit source material and perceptual gamma correction before bit depth conversion (without dithering). "Tonal breaks" in the way I have introduced it (so it is of course very context...

I think the discussion has reached a deadlock - maybe I can help soothe feelings: At first it is essential to make a clear distinction between banding and tonal breaks. And we must clearly define the workflow and the components involved. However: A 8bit (per channel) signal can't provide...

There must be a dithering stage for bith depth conversion. Linearization via vcgt is visually lossless when using an AMD card in a 8bit per channel output scenario. Sometimes you have to exaggerate a little to explain the principle - but irrespective of the legitimate question about input color...

These screens could and can be bought by anyone - therefore I have problems with the word "finally". A TV screen with extended color space must also be bought and the source characteristic still has to match the intended reproduction characteristic outside an ICC workflow. Apart from that an...

No question of the codec. The color triples transport the information inherently. Of course standards must be established because unlike in the ICC workflow we can't rely on characterized data. But it is - apart from backward compatibility constraints - no problem to transport data relative to...