Convert VIFF to PPM

The Khoros Visualization Image File Format (VIFF), developed by AccuSoft Corporation, is a bitmap image format used primarily within the Khoros software environment for scientific and engineering applications. It supports various image types, including grayscale, color, and multi-spectral images, making it useful for visualizing complex datasets. Despite its powerful capabilities, VIFF is now considered somewhat obsolete due to the emergence of newer, more versatile image formats. However, it remains an important part of the history of image processing and visualization technologies.

The Portable Pixmap (PPM) file extension, an image format within the Netpbm family, stores simple, uncompressed images. Introduced in the late 1980s, PPM supports RGB color and grayscale images, making it suitable for basic image processing and conversion tasks. Its plain text encoding simplifies debugging and data manipulation, although its lack of compression results in larger file sizes compared to modern formats. As such, PPM finds limited use in contemporary applications, mainly in educational and experimental settings where ease of implementation and readability are prioritized.