Convert JP2 to PGM

JP2 stands for JPEG 2000, developed by the Joint Photographic Experts Group. It's a file format designed for high-quality image compression, supporting both lossy and lossless compression. Introduced in the year 2000, JP2 offers superior image quality and efficient storage over the standard JPEG format, making it suitable for medical imaging, digital cinema, and archives requiring high-fidelity imagery. Its advanced features include better handling of color, metadata, and progressive decoding, ensuring it remains a vital tool in professional and technical applications.

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.