When maximum pixel intensity value of dicom file is 0, it fails.

[goldragoon]

If this is not the original intention, i will fix it.

[danishm]

@goldragoon Thank you for catching this! Nope this is not intentional. I just didn't realize the max could be zero. Does this mean that a pixel's intensity can be recorded as a negative number?

If you'd like to fix it, please go ahead. I will really appreciate it!