Convert FTS to PGM

The Flexible Image Transport System (FTS) file extension, is predominantly utilized for the storage, transmission, and manipulation of scientific and astronomical data. Developed by NASA in the late 1970s, this standardized format facilitates data interchange among the astronomical community. FTS is highly extensible, supporting various data types such as images, tables, and multidimensional arrays. Its widespread adoption stems from its capability to encapsulate metadata efficiently, enabling accurate and effective exchange of complex datasets among researchers and institutions.

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.