Convert CRW to OTB

The CRW file extension stands for Canon Raw CIFF Image Format, a raw image file format used by Canon digital cameras. Developed to store uncompressed and unprocessed images, CRW files offer high-quality image data that can be edited with Canon's software or third-party editors like Adobe Photoshop. Introduced by Canon, this format has been largely superseded by newer formats like CR2 and CR3 but remains significant in the history of digital photography for its role in preserving image integrity.

The OTB (Over The Air Bitmap) file extension, developed by Nokia, is used for transmitting black and white bitmap images between mobile phones, particularly Nokia and Siemens models. These images, with a maximum resolution of 255x255 pixels, are often sent via SMS in either hexadecimal text or binary format. Historically, OTB files were popular in the early days of mobile communication for sending simple graphics, icons, and wallpapers when data transmission speeds were limited.