Esri/lerc

LERC is an open-source raster format that stores images with rapid encoding and decoding abilities. The user sets the maximum compression error per pixel while encoding to preserve precision within error bounds. A C++ library for encoding and decoding images is available, along with decoders for JavaScript and C#. LERC has functions for compressing and computing buffer sizes that need to be allocated. Additionally, there are functions for retrieving information on the LERC byte blob and data ranges. This format supports a mask image for invalid pixels. LERC version 2.4 allows users to store multiple values per pixel interleaved. The sample program and header files are available for reference in the repository.