Convert OTB to ARW

Understanding OTB and ARW file formats

OTB files are bitmap image files used primarily by older Nokia mobile phones for storing simple black-and-white images, such as icons or wallpapers. The format is quite limited in color and resolution, making it suitable for basic graphics on early mobile devices.

ARW files are Sony Alpha Raw image files, a proprietary raw image format used by Sony digital cameras. ARW files contain unprocessed image data directly from the camera sensor, offering high quality and flexibility for post-processing.

Why convert OTB to ARW?

Converting an OTB file to ARW is an unusual request, as OTB is a simple bitmap and ARW is a complex raw photo format. However, you might want to convert for compatibility with Sony camera software or to include OTB graphics in a workflow that requires ARW files.

How to convert OTB to ARW

There is no direct converter from OTB to ARW, as ARW files are designed to store raw sensor data, not standard images. However, you can convert OTB to a common image format (like PNG or TIFF) and then embed it into an ARW container using specialized software or scripts. Note that the resulting ARW will not be a true raw photo, but rather a wrapper containing your bitmap image.

Recommended software for conversion

• XnConvert: Use this free tool to convert OTB to PNG or TIFF. Open your OTB file, then use Output format to select PNG or TIFF.
• RawTherapee or Adobe DNG Converter: These tools can convert standard images to DNG (Digital Negative), which is a raw format. However, converting to true ARW is not supported. For ARW, you would need advanced scripting or Sony's proprietary tools, which do not support OTB input.

Summary: Convert OTB to PNG/TIFF with XnConvert, then use DNG Converter for a raw-like format. True OTB to ARW conversion is not natively supported.

Step-by-step conversion process

1. Open XnConvert and add your OTB file.
2. Select Output format as PNG or TIFF.
3. Click Convert to export your image.
4. Optional: Use Adobe DNG Converter to convert PNG/TIFF to DNG for raw workflow compatibility.

There is currently no direct way to create a true ARW file from an OTB image.