What is the difference between .otb and .g4?
- Extension
- .otb
- .g4
- Format
- Binary
- Binary
- Category
- Raster Image
- Fax
- Developer
- Nokia
- Computer Fax Systems (CFS)
- Description
- 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.
- Group 4 (G4) used for black and white lossless compression to maintain high-quality images, commonly used in TIFF format compression by fax machines. A picture is seen as black dots and lines on a blank page; the fewer the dots and lines are, the lesser the file size.
- MIME Type
- image/x-up-bitmap
- image/g4fax
- Sample
- sample.otb
- Wikipedia
- .otb on Wikipedia