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ddsm's Introduction

Hi, I'm Chris πŸ‘‹

I'm a statistician (PhD, CStat) at the Norwegian Institute of Public Health (NIPH) with over 20 years of medical research experience. I work on:

Before that:

  • Statistical editor for the Cochrane Effectice Practice and Organization of Care (EPOC) review group.
  • Senior Data Scientist at OncoImmunity AS developing statistical models of peptide-MHC binding and other key pathways in mammalian immune response.
  • Research Fellow at the University of Manchester, collaborating with AstraZeneca, GSK, Pfizer, and Genentech on the development of analysis methods for imaging-based clinical trials of novel cancer therapies.

You can find a list of my publications at Google Scholar, and read my resumΓ© at LinkedIn.

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ddsm's Issues

the ddsmraw2pnm program has a problem in processing data whose scanner is dba

in the line 215 of the ddsmraw2pnm.c , the code "if(0 != raw)" does not change the value '0' and causes the '0' in the data be the 65534 in the generated pnm file. It causes much noise. And in the data of scanner dba, the background data are not the same. The code uses "if(raw < 4){raw = 4;}" to deal with the background data, but 4 is too small and there are much background data larger than 4. So the pnm will be will bad. If someone want to use the program , i think you should change the code to deal the problem

./jpeg is not runnable on Unix/Linux

./jpeg isn't runnable on Unix/Linux! It actually says that ./jpeg is not a binary file. When I tried to run jpeg.exe on Windows on a DDSM image, I got a "failed on the DICOM step" error.

Updated cygwin instructions

When installing the latest Cygin as of this writing, it looks like Ruby has moved a bit within the installer's categories:

Ruby:
image

ddsmraw2pnm.exe under linux

I can verify that jpeg is running properly in my linux box, but ddsmraw2pnm.exe is not.
Do I need the latter?
I also found ./jpeg.exe in the ruby code. Do I need to change it to ./jpeg for linux systems?

./get-ddsm-mammo not working on Ubuntu 19.04

I am trying to download a DDSM image using this software on Ubuntu 19.04 machine. Encountered the following error:

run-detectors: unable to find an interpreter for ./jpeg.exe
Traceback (most recent call last):
2: from ./get-ddsm-mammo:328:in `<main>'
1: from ./get-ddsm-mammo:278:in `main'
./get-ddsm-mammo:233:in `ljpeg_to_pnm': Could not convert from LJPEG to raw. (RuntimeError)

Both jpeg and jpeg.exe files are given execution permission. Why is the jpeg.exe being executed instead of the jpeg (appropriate for Linux)? Are there any fixes/workarounds to this issue?

Any help would be appreciated.

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