save a probability matrix (range [0, 1]) as grayscale image with range [0,1]

I need to save an mxn probability matrix (values in range [0, 1], single) as an image (png, tif, etc.). I want the values to stay in the [0 1] range and not scaled to 0-255 (uint8) or other like what imwrite does. Can it be done in Matlab? Thank you.

Answer 1

[Walter Roberson]

For the low level stuff:

https://www.mathworks.com/matlabcentral/answers/7184-how-can-i-write-32-bit-floating-point-tifs-with-nans

But you can just use https://www.mathworks.com/matlabcentral/fileexchange/30519-export-image-to-tif-or-tiff-file-of-selected-data-type

The idea here is that to write floating point images as floating point, you are restricted to TIFF: none of the other image formats can handle floating point data without converting it (unless you want to count DICOM as an image format.)

Many image browsers cannot handle floating point TIFF images. I seem to recall that Windows Explorer can display floating point TIFF though.

[Mina Gheiratmand]

This looks like a solution! Thank you very much for your quick reply! I will dig further into exporting to tiff for my use case and get back ...