Issues on images with BitsAllocated (0028,0100) set to 16 and BitsStored (0028,0101) set to 8

[jmcoelloidonia]

Describe the bug
We've found a DICOM modality that somehow creates images with BitsAllocated (0028,0100) set to 16 but BitsStored (0028,0101) set to 8 and this doesn't seem to be rendering properly on weasis.

To Reproduce
Steps to reproduce the behavior:

1. Load a dcm with (0028,0100) set to 16 and BitsStored (0028,0101) set to 8

Expected behavior
It should render correctly, as shown in attachment.

Desktop (please complete the following information):

• OS: Both Linux and Windows, 64-bits
• Java Runtime: OpenJDK Runtime Environment (build 1.8.0_212-8u212-b03-0ubuntu1.19.04.2-b03)
• Weasis Version: 3.5.2-SNAPSHOT (portable)

Screenshots

[nroduit]

I never have a file with this configuration that seems a little absurd to me because we double the size with useless information!

Could you send me a sample?

[jmcoelloidonia]

Yes, no problem.

470ac4e2-a261-11e9-9099-7aee65d9ab48.dcm.zip

[nroduit]

This special case was not taken into account because the reader step was the bitstored rounded to the upper byte.
Fixed for 3.5.3.