Clipping Indicator Strangeness Back Again ???

Since updating to the latest version of ACR 8.7.1 an anomaly with the black clipping indicator has returned. Example, open an image in ACR make a slight adjustment to exposure and highlights, now make open up the shadows, and the black clipping indicator magically appears or if the indicator showed clipped shadows the clipping indicator increases. Should it either remain the same or at least slightly reduce the clipped areas? Adjusting the Blacks to reduce the clipping works, but should the clipping indicators be accurate. Happens at all levels of zoom within ACR.
I know Eric worked on the earlier problem that was resolved - was an issue where a dark area was adjacent to a very bright area.
Camera in question - Nikon D4 and using Process 2012 with the Standard Adobe profile
Cheers
MK

You need to put the peak-to-peak indicator outside the case structure so it gets updated every loop iteration. To retain the values for iteration that currently don't update the indicator, use a second shift register across the while loop which also goes throught the case structure.
In the TRUE case, the result of the division is wired to it's output tunnel. In the FALSE case, the output of the left shift register is simply wired across the case structure, retaining the old value. From the indicator, the wire continues to the new shift register on the right.
LabVIEW Champion . Do more with less code and in less time .

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Okay, so I recently updated to ACR 6.7.
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Had the opportunity to delve into the highlight clipping issue, and found another interesting anomoly. With ACR set to 100% to eliminate any display issues you can see in the first image the highlight clipping indicator with all the controls set to zero; which is what I would expect to see, and the highlights while hot, not too hot and moving the highlight control to the left as seen in the second image, the highligh clipping indicator is off with the highlight control set at -45 again with all the other controls set to zero
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I checked with the color picker and the highlight values with the control set at -45 showed R=254 G=254 B=254 not quite pure white, but still a blown highlight, but with the control set at -85 the RGB values increased to R=255 G=255 and B=255 which is pure white. At -45 there were some values lower than 254 but those increased to pure white wheras I would have thought they would have reduced in value as you further move the highlight control to the left
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Just updated to the release version of ACR 7.3 and notice some weirdness with the highlight clipping indicator.
The file is from a Nikon D3 set at ISO 3200 with Nikon 24-70 f2.8 (shot at f3.2)
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We were discussing this in another thread several months ago
So, under certain conditions and when some camera profiles are used (both Nikon and Canon), it can happen that trying to reduce clipped area with sliders actually increases that area. It's caused by the profile as made by the factory (Nikon, Canon) and isn't ACR issue. I think I also posted a graphical representation of one profile showing why it happens. If not, I can post it
The fact is - sRGB / Adobe RGB gamut is smaller than gamut of raw image, so some colors are clipped even if they are not clipped in raw color space, sometimes in slightly unexpected way. However, if Adobe standard profile is used, clipping is performed according to ACR workflow which also has some drawbacks, which we also discussed in another thread on raw image from Olympus camera, several months ago
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Clipping Indicator Strangeness Back Again ???

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