Read dng image using the Tiff class and the display image is black

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Reem 2014-9-16

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评论： Joel Trussell 2020-10-22

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Hello,

I am trying to read a raw image into Matlab. I have used the following code:

warning off MATLAB:tifflib:TIFFReadDirectory:libraryWarning
t = Tiff('test.dng','r');
offsets = getTag(t,'SubIFD');
setSubDirectory(t,offsets(1));
cfa = read(t);
close(t);
imtool(cfa)

When I ran the code, I got multiple warnings such as bellow:

Warning: TIFF library warning - 'TIFFReadDirectory:  Unknown field with tag
33421 (0x828d) encountered.' 
Warning: TIFF library warning - 'TIFFReadDirectory:  Unknown field with tag
33422 (0x828e) encountered.'

I checked my Adobe DNG converter settings and I have used the following settings:

Any clue?!

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Joel Trussell 2020-10-22

I have same problem but my DNG file comes directly from a Leica M10

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回答（1 个）

David Macias 2016-11-3

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https://ww2.mathworks.cn/matlabcentral/answers/155085-read-dng-image-using-the-tiff-class-and-the-display-image-is-black#answer_241825

I have the same problem. Did Someone find a solution?

thanks in advance

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Noor Abbas 2018-11-30

I have same problem?

Ricardo Motta 2020-4-20

Can we please get support for DNG?

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