PictureStorageService as png not working

[nico.m...@gmail.com]

Hi John,

I configured a pipeline with a DicomECGProcessor and a picture storage service to store the ECG as .png file.

This doesn't work with the following error in the log: 

13:27:30 WARN  [PictureStorageService] Unable to save the image as a png
java.lang.UnsupportedOperationException: Compression not supported.
  at javax.imageio.ImageWriteParam.setCompressionMode(Unknown Source)
  at org.rsna.ctp.stdstages.PictureStorageService.saveAs(PictureStorageService.java:223)
  at org.rsna.ctp.stdstages.PictureStorageService.store(PictureStorageService.java:199)
  at org.rsna.ctp.pipeline.Pipeline.processObjects(Pipeline.java:244)
  at org.rsna.ctp.pipeline.Pipeline.run(Pipeline.java:198)

Some research from a co-worker:

https://coderanch.com/t/416163/java/compression-supported-PNG

And the line of code from CTP in Github:

CTP/source/java/org/rsna/ctp/stdstages/PictureStorageService.java at master · johnperry/CTP · GitHub

We think this might be the problem why the .png file fails. The .jpeg is OK.

Is it possible to get this fixed?

Kind regards,

Nico