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.
Principais características
Que programa abre ficheiros JPEG 2000
Os seguintes programas e aplicações podem abrir, editar e trabalhar com ficheiros JPEG 2000 — Wavelet Image Compression (.jp2) exportados do 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.
Quem utiliza mapas JPEG 2000
Como exportar para JPEG 2000
Mapas populares em JPEG 2000
Obtenha exportações de mapas em JPEG 2000 — Wavelet Image Compression
Descarregue mapas profissionais em JPEG 2000 a partir do OpenStreetMap. Geração instantânea, qualquer área.