SID File Documentation

Overview

Feature Value
File Extension .sid
MIME Type image/x-mrsid-image
Developer LizardTech
Compression Wavelet-based
Primary Use Geospatial imagery
Color Depth Supports 24-bit (RGB) and 8-bit (grayscale)
Alpha Channel Not natively supported
Multispectral Support Yes
Max Image Size Theoretically unlimited
Layer Support No
Metadata Support Yes
Georeferencing Data Support Yes
Zoom Levels Variable, allows efficient scale adjustment
Performance High compression with fast decompression times
Compatibility Supported by many GIS applications
Lossy/Non-Lossy Primarily lossy, but can retain high-quality images
Tile-Based Access Yes
Versioning Multiple versions with improved compression and features over time
Digital Rights Management (DRM) Not natively supported
Typical File Size Reduction Up to 95% reduction for aerial and satellite images