Does VTK support reading LZW-compressed TIFF?

Support
1

Hi everyone,

I have some TIFFs that cannot be read with vtkTIFFReader, but ImageJ and ParaView can read and display them perfectly. So I used ImageJ to open these TIFFs and saved them as TIFFs again, and now these newly saved TIFFs from ImageJ can be read by vtkTIFFReader. I noticed that the original TIFFs are LZW-compressed and those saved by ImageJ are not, so as indicated by the difference of their file size.

Is there any way in vtk to decode LZW-compressed TIFFs and properly populate the image data to vtkTIFFReader?

Thanks!

2

I suspect this has to do with using an external libtiff as our built-in one doesn’t link to any LZW library (unless it implements it internally?).

What build of ParaView is this?

3

Hi Ben, thanks for your reply!

It’s VS2019 x64.

If it’s using the external libtiff, how to populate libtiff's tiff to vtkTIFFReader?

4

There is the VTK_MODULE_USE_EXTERNAL_VTK_libtiff option to set to ON (or something like it). CMake will then need to be told how to use whatever tiff you have.

5

I’ve rebuilt my VTK using an external libtiff with the tag you mentioned on. Now it can read LZW-compressed tif files correctly! Thank very much for your help!