- Extension
- .j2k
- .otb
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Joint Photographic Experts Group
- Nokia
- Description
- Compressed bitmap image that uses wavelet compression instead of the DCT compression used by standard .JPEG images; supports 16-bit color, alpha transparency, and lossless compression.
- The OTB (Nokia Over The Air Bitmap Image) file format is a type of image file developed for use on Nokia mobile devices. These files are specifically optimized for efficient transmission and display on Nokia phones, particularly older models. The OTB format is designed to be compact to facilitate over-the-air (OTA) transmission, which was an essential feature in the era of limited bandwidth and data transfer capabilities. The format supports monochrome graphics, making it suitable for simple images like icons and logos.
- MIME Type
- image/jp2
- image/x-up-bitmap
