Convert SRF to G4

The SRF (Sony Raw File) is a RAW image file format used by Sony digital cameras, such as the DSC-F828 model, to store uncompressed, unaltered images captured by the camera's sensor. Introduced in January 2004, SRF files preserve high-quality image data, offering photographers greater flexibility in post-processing compared to compressed formats like JPEG. Over time, Sony developed subsequent formats like SR2 and ARW to enhance features and compression methods.

The G4 file extension, standing for CCITT Group 4 Fax Image, is a specialized format used primarily for storing black-and-white facsimile (fax) images. Its origins trace back to the Consultative Committee for International Telegraphy and Telephony (CCITT), now known as the ITU-T, which developed the Group 4 standard in the 1980s to improve fax transmission efficiency over digital networks. This format employs a high compression ratio to reduce file size while maintaining image quality, making it ideal for archiving documents and transmitting faxes in professional and business environments.