I have noticed that the value in the wtpt tag of an Argyll-made ICC profile varies dramatically depending on the quality level selected via the -q and whether input/output matrices are included via the -n tag. I would like to understand how it is that the wtpt is not invariant with respect to these tags:
Command: profile -v -ql -bl -l333 -kp 0 0 .8 .4 .5 wtpt data: 92.496330, 0.622382, -3.016244 Command: profile -v -ql -bl -ni -no -l333 -kp 0 0 .8 .4 .5 wtpt data: 93.403267, 0.365175, -3.695083 Command: profile -v -qm -bm -l333 -kp 0 0 .8 .4 .5 wtpt data: 89.306440, 0.563566, -2.679620 Command: profile -v -qm -bm -ni -no -l333 -kp 0 0 .8 .4 .5 wtpt data: 92.164165, 0.582095, -3.329186 Command: profile -v -qh -bm -l333 -kp 0 0 .8 .4 .5 wtpt data: 91.681575, 0.619838, -2.723870 Command: profile -v -qh -bm -ni -no -l333 -kp 0 0 .8 .4 .5 wtpt data: 89.079722, 0.552168, -2.911983All profiles are made with Argyll beta 7.5. Whitepoint data extracted via iccdump command.
