Convert FTS to APNG (Animated PNG)

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.

Animated Portable Network Graphics (APNG) is an extension of the Portable Network Graphics (PNG) format designed to support animated images. Introduced in 2004, APNG allows for animated sequences while retaining backward compatibility with non-animated PNG files. This format is utilized for its lossless compression, making it ideal for web graphics where image quality is paramount. APNG files are widely used for animated icons, logos, and other elements that benefit from high-quality animations without the artifacts common in GIF files. Its concise, efficient structure makes it a preferred choice among developers and designers focused on optimizing web performance.