Convert PIX to PGM

The PIX file extension stands for Alias/Wavefront Run-Length Encoding (RLE) Image Format. Developed by Alias Systems Corporation (later acquired by Autodesk), it was designed for storing bitmap images in PowerAnimator and Alias 3D software. This format was instrumental in creating high-resolution 3D models and animations for movies and video games in the 1990s. The RLE compression minimized file size without compromising image quality, optimizing performance for graphics-heavy tasks. Although its usage has declined in favor of more versatile formats, PIX played a significant role in the evolution of computer graphics technology.

The Portable Graymap (PGM) file extension, originating in the late 1980s as part of the Netpbm project, stands for "Portable Gray Map". It serves as a simple, versatile format for grayscale images, enabling easy reading and writing by various programs. Due to its straightforward structure and plain text encoding, it's often used in academic and research settings where ease of parsing and accessibility are crucial. PGM files store grayscale images in a compact, efficient manner, making them an essential tool for image processing tasks.