Convert G4 to X AVS

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.

The X file extension, also known as Application Visualization System X Image, is used for storing high-quality, true-color images with transparency. Developed by Stardent Computer for UNIX systems, it supports 32 bits per pixel, allowing for over 16,7 million colors with an alpha channel for transparency. This format is particularly valuable in scientific visualization and complex data representation. Despite newer formats, its uncompressed nature ensures image integrity without compression-related degradation.