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How to replace the data in tif file with my own data by matlab?

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Rafat
Rafat 2023-11-6
评论： Sulaymon Eshkabilov 2023-11-7
Hello,
I have .tif file, how I can replace or edit its data with my own matrix of data?
I cc'd mymatrix and the .tif file.
If you have an idea, please elaborat a littile bit on explanation how to do it, since I am beginner with matlab.
Cheers

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采纳的回答

Walter Roberson
Walter Roberson 2023-11-6
编辑：Walter Roberson 2023-11-6
The file you have appears to be a GeoTIFF file, which you can read with readgeoraster or the older geotiffread
You can write out the modified data using geotiffwrite
geotiffinfo might also be of interest.
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Rafat
Rafat 2023-11-7
@Walter Roberson
I test it, it's perfect!!
If you please, is this 3 or 2 in the following comand line? I think it's 2?
DS = load(D{1,3}).image_median;
Walter Roberson
Walter Roberson 2023-11-7
编辑：Walter Roberson 2023-11-7
Ran in:
The file appears to contain a __MACOSX subdirectory.
pwd
ans = '/users/mss.system.Bh1JYo'
ls -la
total 76 drwxr-xr-x 2 mluser worker 4096 Nov 7 01:53 . drwx------ 1 mluser worker 4096 Nov 7 01:52 .. -rw-r--r-- 1 mluser worker 68764 Nov 7 01:53 Test5.zip
!zipinfo -1 Test5.zip
doy2019190052709_aid0001.tif __MACOSX/._doy2019190052709_aid0001.tif mymatrix.mat __MACOSX/._mymatrix.mat
D=unzip('Test5.zip')
D = 1×4 cell array
{'doy2019190052709_aid0001.tif'} {'__MACOSX/._doy2019190052709_aid0001.tif'} {'mymatrix.mat'} {'__MACOSX/._mymatrix.mat'}
ls -la
total 148 drwxr-xr-x 3 mluser worker 4096 Nov 7 01:53 . drwx------ 1 mluser worker 4096 Nov 7 01:52 .. -rw-r--r-- 1 mluser worker 40220 Jul 19 19:45 doy2019190052709_aid0001.tif drwxr-xr-x 2 mluser worker 4096 Nov 7 01:53 __MACOSX -rw-r--r-- 1 mluser worker 27157 Nov 6 16:00 mymatrix.mat -rw-r--r-- 1 mluser worker 68764 Nov 7 01:53 Test5.zip

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更多回答（1 个）

Sulaymon Eshkabilov
Ran in:
If understood your question correctly, this is how to get it solved:
D=unzip('Test5.zip');
%%
D1 = imread(D{1,1});
DS = load(D{1,3}).image_median;
subplot(211);imagesc(D1); title('doy2019190052709_aid0001.tif')
subplot(212); imagesc(DS); title('mymatrix.mat')
[X, Y] = find(DS(:,:,1)>0.9);
D1(X,Y,:)=DS(X,Y,:);
%%
figure
imagesc(D1); title('Updated TIFF file')
saveas(gcf, 'UPDATED.tiff') % Save the updated image data
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