Epsilon - Wavelet compressed images¶
Driver short name
GDAL can read and write wavelet-compressed images through the Epsilon library. epsilon 0.9.1 is required.
The driver rely on the Open Source EPSILON library (dual LGPL/GPL licence v3). In its current state, the driver will only be able to read images with regular internal tiling.
The EPSILON driver only supports 1 band (grayscale) and 3 bands (RGB) images
This is mainly intended to be used by the Rasterlite - Rasters in SQLite DB driver.
This driver supports the
This driver supports virtual I/O operations (/vsimem/, etc.)
TARGET Target size reduction as a percentage of the original (0-100). Defaults to 96
FILTER. See EPSILON documentation or ‘gdalinfo –format EPSILON’ for full list of filter IDs. Defaults to ‘daub97lift’
BLOCKXSIZE=n: Sets tile width, defaults to 256. Power of 2 between 32 and 1024
BLOCKYSIZE=n: Sets tile height, defaults to 256. Power of 2 between 32 and 1024
MODE=[NORMAL/OTLPF] : OTLPF is some kind of hack to reduce boundary artifacts when image is broken into several tiles. Due to mathematical constrains this method can be applied to biorthogonal filters only. Defaults to OTLPF
RGB_RESAMPLE=[YES/NO] : Whether RGB buffer must be resampled to 4:2:0. Defaults to YES