[FEA] Supporting image loader for trivial formats (Jpeg, Jpeg 2000, PNG)

[gigony]

Is your feature request related to a problem? Please describe. cuCIM is currently supporting some generic Digital Pathology-related image formats (generic RGB tiled TIFF, Philips TIFF, etc). cuCIM can easily support trivial image formats JPEG/JPEG2000 as decompression libraries are already included for TIFF format decompression). PNG format is also a popular image format that is good to support.

Describe the solution you'd like

• JPEG/JPEG2000
  • Use jpeg-turbo/openjpeg library for CPU-based Jpeg/Jpeg2000, use nvJpeg and nvJpeg2000 for gpu-based decompression.
• PNG
  • I thought about leveraging libspng(https://libspng.org/) for decoding PNG in the future in cuCIM but we can try to use wuffs for loading PNG to get 1.50x ~ 2.75x gain compared with libpng.
  • https://nigeltao.github.io/blog/2021/fastest-safest-png-decoder.html
  • https://github.com/google/wuffs/tree/v0.3.0-rc.2/release/c

[biocyberman]

Hi I am interested in having support for PNG. Thanks