[Octave-bug-tracker] [bug #60664] cannot work with RAW images - dcraw command fails

[Tomáš Hudziec]

Follow-up Comment #3, bug #60664 (project octave):

Thank you both for quick answers. Some raw images can be obtained e.g. at [1].
Yes, Markus, you understand it correctly. I didn't know, that dcraw isn't
bundled with the Windows installer, thanks for pointing out.

>From the link you mentioned I put the dcraw binary (dcraw.exe renamed from
dcraw64.exe) into "C:\Program Files\GNU Octave\Octave-6.2.0\mingw64\bin"
folder. (It required administrator privileges - I know, that putting it
somewhere else and setting the PATH env. variable would not require them, but
I haven't tried it.)

Now the dcraw executes, but somehow it fails to recognize the output
redirection and it complains, that it will not write its result to the
standard output (terminal).


>> imread ("CRW_7268.crw");
Will not write an image to the terminal!
Magick: "dcraw" -c -w -6 -T "D:\CRW_7268.crw" >
"C:\Users\TOMAS~1.HUD\AppData\Local\Temp\gmw4nqtb"
.
error: Magick++ exception: Magick: Delegate failed ("dcraw" -c -w -6 -T "%i" >
"%o") reported by m
agick/delegate.c:907 (InvokeDelegate)
error: called from
    __imread__ at line 75 column 10
    imageIO at line 125 column 28
    imread at line 102 column 33


By the way, the output should be a file, not a folder (I mean that in
Local\Temp), shouldn't it?

[1]: http://rawsamples.ch

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