Convert pgm to miff

What is the difference between .pgm and .miff?

Description: A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.; The MIFF (Magick Image File Format) is a versatile image format used primarily by ImageMagick, a software suite for creating, editing, converting, and displaying bitmap images. It is designed to store bitmap images with a high degree of flexibility, supporting various depths and color spaces, including transparency and multiple layers. MIFF files are often used for temporary storage during image processing tasks, as they can efficiently preserve the full quality and attributes of images.