Phocus Repro Low Gain is, no surprise, less chromatic and more accurate than Phocus Standard:
LrCC development with Camera Standard approximates Phocus Standard development, but Phocus does a better job with the neutrals:
A comparison of Adobe Standard Profile in Lr, Camera Standard Profile in Lr, Phocus Standard, and Phocus Repro Low gain:
Metrics for the Macbeth CC24. In all cases, lower absolute values are better. Best results marked in green.
The first eight rows are the total color errors measured with four different criteria: CIELab DeltaE, CIELuv DeltaE, and Lab DeltaE1994 and DeltaE2000. If you want to focus on one of those, use DeltaE2000. The top four rows are the average errors for all 24 patches of the Macbeth color checker chart. The next four rows are the square root of the means of the squares of the errors, and penalize big errors more than the simple average.
The next five rows in the are the average errors in each of the CIELab axes. The last row in that group is the mean errors in chroma. Negative numbers are less chromatic than perfect, and positive numbers are more chromatic. The next group of four is the same thing but leaving out the 6 gray patches in the Macbeth chart.
The next group has 5 members. The first one is the same metric as the last measure in the group above it, but using CIELuv as the basis for the measurements rather than CIELab. Then we have the average hue angle errors in both Lab and Luv, and their standard deviations (aka sigmas).
The last group of four metrics has the mean and standard deviations of the chromaticity errors in CIElab and in CIELuv.
A perfect result would have all values zero.
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https://blog.kasson.com
LrCC development with Camera Standard approximates Phocus Standard development, but Phocus does a better job with the neutrals:
A comparison of Adobe Standard Profile in Lr, Camera Standard Profile in Lr, Phocus Standard, and Phocus Repro Low gain:
Metrics for the Macbeth CC24. In all cases, lower absolute values are better. Best results marked in green.
The first eight rows are the total color errors measured with four different criteria: CIELab DeltaE, CIELuv DeltaE, and Lab DeltaE1994 and DeltaE2000. If you want to focus on one of those, use DeltaE2000. The top four rows are the average errors for all 24 patches of the Macbeth color checker chart. The next four rows are the square root of the means of the squares of the errors, and penalize big errors more than the simple average.
The next five rows in the are the average errors in each of the CIELab axes. The last row in that group is the mean errors in chroma. Negative numbers are less chromatic than perfect, and positive numbers are more chromatic. The next group of four is the same thing but leaving out the 6 gray patches in the Macbeth chart.
The next group has 5 members. The first one is the same metric as the last measure in the group above it, but using CIELuv as the basis for the measurements rather than CIELab. Then we have the average hue angle errors in both Lab and Luv, and their standard deviations (aka sigmas).
The last group of four metrics has the mean and standard deviations of the chromaticity errors in CIElab and in CIELuv.
A perfect result would have all values zero.
--
https://blog.kasson.com
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