JPEG 2000 — Wavelet Image Compression
Open BetaJPEG 2000 (.jp2) is the ISO/IEC 15444 international standard that uses a wavelet transform instead of the block DCT of ordinary JPEG. On osm2cdr.ru the map is rendered to PNG and then converted to .jp2 through GDAL's JP2OpenJPEG driver. Wavelet compression gives graceful degradation without blocky artefacts and multi-resolution decode. Both lossy and lossless modes are supported. The output is a raster RGB image of the map (not a multi-band satellite scene); it is a compact replacement for heavy PNG in high-resolution map posters and raster overlays.
Klíčové vlastnosti
Jaký program otevírá soubory JPEG 2000
Následující programy a aplikace dokážou otevřít, upravit a zpracovat soubory JPEG 2000 — Wavelet Image Compression (.jp2) exportované z OSM2CDR:
Format specifications
- Open standard
- 2D only
- Lossy compression
- No attributes
- Output: 1 file
- A single .jp2 (ISO/IEC 15444) converted from PNG via the GDAL JP2OpenJPEG driver; wavelet compression, lossy by default with multi-resolution decode, an RGB map snapshot.
Kdo používá mapy JPEG 2000
Jak exportovat JPEG 2000
Oblíbené mapy ve formátu JPEG 2000
Získejte mapové exporty ve formátu JPEG 2000 — Wavelet Image Compression
Stáhněte si profesionální mapy JPEG 2000 z OpenStreetMap. Okamžité generování, libovolná oblast.