tiff file data types

Hi, I am trying to write a function that takes a tif file as imageIn, then converts the data type into uint8 and gives out imageOut. the problem is that when I give a file which is not in logical data type format, it gives this error:

Matrix dimensions must agree. Error in Imfunction if class(image) == 'logical'

I dont understand how to fix the code. could someone help me figure it out? here is the code:

function imageOut = Imfunction(imageIn)

image = imread(imageIn);

if class(image) == 'logical'

image = uint8(image) .* uint8(255);

end

imwrite(image,'imageOut');

end

Answer 1

[Walter Roberson]

Use islogical() instead of comparing the class.

If you must compare the class then use strcmp instead of == .

If you must use == then use R2016b or later and

if string(class(image)) == 'logical'