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Converting .tif file into an .ascii file

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Ahmed Abdulla
Ahmed Abdulla on 9 Jun 2020
Commented: Ahmed Abdulla on 9 Jun 2020
I have a .tif file that i would like to convert to .ascii . Or a way to be able to convert the .tif file into a numerical matrix where i can convert some values to NaN. I have tried:
Trial 1:
t = Tiff('File_name.tif','r');
imageData = read(t);
imagesc(imageData)
Trial 2:
A = imread('maxlike34_ica_34minerals_step3_2ppd_mostdominant_tiff.tif');
save('myTiff2mat','A');
In both trials when i run a loop to convert any cells that contain a 0 to NaN then none of them change and they all remain as 0, and the .mat files have the dimensions and uint8 which is unlike any data file that i import using .ascii files.

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Ahmed Abdulla
Ahmed Abdulla on 9 Jun 2020
im not really familiar with the term, but the file is compositional measurement of an area and where there is no recorded measurement the filler value is 0.
Ahmed Abdulla
Ahmed Abdulla on 9 Jun 2020
sorry im not allowed to do so, thank you for trying to help! i'll keep trying

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