OTA Bitmap

The OTA Bitmap format is a monochrome, uncompressed format using one bit per pixel. As the format was designed for cellular phones, there is no standard computer format. It may be stored as a binary file or as hex (usually without spaces) in a text file. Recognized extension is .otb.

Read more about OTA Bitmap:  Format Copyright, The Data Header, Encoding The Pixels, Putting It Together

Other articles related to "ota bitmap, ota":

OTA Bitmap - Support in Applications - Read/write Support
... neither display nor save files of this format) Note to review there is no write support for OTA format in XnView ...