Tool for compressing data in JPEG lossless format

Question

I have a file which contains raw pixel data and I want to compress this data using JPEG lossless compression. I tried to search for this tool using google but couldn't fina any. Does anybody know here of any tool which takes raw data as input and compresses it using JPEG lossless format?

Answer 1

XnView, view/convert over 400 graphic file formats (incl. various RAW standards)

a portable version is also available.

Answer 2

I find irfanview from http://irfanview.net faster than xnview

Answer 3

These are starter pointers for Lossless JPEG compression,

• Wikipedia Lossless JPEG
• A jpeg-ls page (not much updated but refers a C++ JPEG-LS library CharLS)
• another implementation ref
• There may be some solutions at the JPEG Solutions page
  • May have missed something but I could not find
    Lossless JPEG writing capabilities in either REA or Contenta products,
    right up to the Pro edition.

Is there a specific reason for targetting lossless JPEG?
Would the RAW and other lossless formats not work?

Answer 4

REA Converter can convert RAW images to various formats, and have a lite edition that is free. THere is also the Contenta RAW Convert however it is not free.