As some of you probably remember, a while ago I written a small utility called DngSetMatrix, which could be used to change color matrix in dng files. It was because color calibration for some cameras was a bit off ...
In the meantime, Dng4Ps program got possibility to customize color matrix, so this is utility isn't of much importance. Anyway, it could happen that you have some old dngs with wrong matrices or so
As there is a magnificent utility called Exiftool, by Phil Harvey, a dropped Phil a line on his forum, if he could enable writing of color matrix tag in dng with exiftool (it was disabled). He responded very quickly, so the last version, dated 20.june, has a possibility to write color matrices. Syntax is:
exiftool.exe -ColorMatrix1="n1 n2 n3 n4 n5 n6 n7 n8 n9" filename
exiftool.exe -ColorMatrix2="n1 n2 n3 n4 n5 n6 n7 n8 n9" filename
exiftool.exe -ForwardMatrix1="n1 n2 n3 n4 n5 n6 n7 n8 n9" filename
exiftool.exe -ForwardMatrix2="n1 n2 n3 n4 n5 n6 n7 n8 n9" filename
where n1..n9 are coefficents of the corresponding matrix
It is also possible to combine several parameters in the single line, like
exiftool.exe -ColorMatrix1="n1 n2 n3 n4 n5 n6 n7 n8 n9" -ColorMatrix2="n1 n2 n3 n4 n5 n6 n7 n8 n9" filename
etc ...
Thanks Phil for quick answering
