Convert SR2 to G4

The SR2 file extension stands for "Sony RAW 2", a format used by Sony digital cameras to store uncompressed image data. Introduced in December 2005 with the Sony DSC-R1 model, SR2 files capture raw image data directly from the camera's sensor, preserving maximum detail and dynamic range for post-processing. This format is favored by professional photographers for its flexibility in editing and superior image quality compared to compressed formats. SR2 is part of Sony's suite of RAW formats, which also includes SRF and ARW.

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.