Alpha Channels's titles in TIFF?

Started by diuming, March 26, 2020, 05:07:24 AM

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diuming

I have a TIFF file is CMYK + 3 alpha channles.
Can I setting alpha channels's titles in the TIFF file using exiftool than photoshop can show each alpha channel's title.
thx.


Phil Harvey

Great,

It may be helpful to others if you could give a concrete example of a command that you used.

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).

diuming

reexplanation

I have an TIFF Image that composed of CMYK + 3 alpha channels.
Can I add a name for each alpha channel?
please! refer to following, thanks

Example
---- XMP-photoshop ----
Color Mode                      : CMYK
---- IPTC ----
Application Record Version      : 0
---- Photoshop ----
IPTC Digest                     : e8f15cf32fc118a1a27b67adc564d5ba
Print Info 2                    : ...printOutput.PstSbool.InteenumInteClrm.printSixteenBitbool.printerNameTEXT..printProofSetupObjc.Proof Setup.proofSetup.Bltnenum.builtinProof.proofCMYK
Print Style                     : ...printOutputOptions.CptnboolClbrboolRgsMboolCrnCboolCntCboolLblsboolNgtvboolEmlDboolIntrboolBckgObjc.RGBC.Rd  doub@o‡Grn doub@o‡Bl  doub@o‡BrdTUntF#RltBld UntF#RltRsltUntF#Pxl@v.ÎÄ.vectorDatabool.PgPsenumPgPsPgPCLeftUntF#RltTop UntF#RltScl UntF#Prc@Y.cropWhenPrintingbool.cropRectBottomlong.cropRectLeftlong.cropRectRightlong.cropRectToplong
X Resolution                    : 359.99
Displayed Units X               : inches
Y Resolution                    : 359.99
Displayed Units Y               : inches
Print Style                     : Centered
Print Position                  : 0 0
Print Scale                     : 1
Alpha Channels Names            : Spot Color 1, Alpha 3, Alpha 4
Unicode Alpha Names             : .Spot Color 1.Alpha 3.Alpha 4
Display Info                    : .34ôô34..RRœœ¿¿..RRœœ¿¿.
Alpha Identifiers               : ...
Alternate Spot Colors           : ....."Ó..∑
Background Color                : ˇˇˇˇˇˇ
Global Angle                    : 90
Global Altitude                 : 30
Print Flags                     : 0 0 0 0 0 0 0 0 1
Print Flags Info                : ..
Color Halftoning Info           : /ff.lff../ff.°ôö..2.Z..5.-..
Color Transfer Funcs            : ˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇ.ˡˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇ.ˡˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇ.ˡˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇˇ.Ë
Spot Halftone                   : ...
Grid Guides Info                : ..@.@
URL List                        :
Slices Group Name               : bands
Num Slices                      : 1
Pixel Aspect Ratio              : 1
ICC Untagged                    : 1
IDs Base Value                  : 6
Photoshop Thumbnail             : (Binary data 2601 bytes, use -b option to extract)
Has Real Merged Data            : Yes

Phil Harvey

I see.  Unfortunately, those tags are not writable by ExifTool (see here).

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).

diuming

thanks for reply.

Is there a chance using Adobe XMP Toolkit SDK to read, write, and update?
thanks

StarGeek

As those tags are part of the Photoshop group and not the XMP group, I would doubt that the XMP toolkit would be able to change them. 
* Did you read FAQ #3 and use the command listed there?
* Please use the Code button for exiftool code/output.
 
* Please include your OS, Exiftool version, and type of file you're processing (MP4, JPG, etc).