Convert PHM to ISOBRL6

The PHM file extension stands for Portable Float-map Image (16-bit half), a format used for storing High Dynamic Range (HDR) images with 16-bit half-precision floating-point values. This format is particularly useful in applications requiring precise color representation and extensive dynamic range, such as computer graphics, image processing, and scientific visualization. Originating from the Portable FloatMap (PFM) format, PHM was developed to provide a more efficient storage solution by utilizing half-precision floats, thereby reducing file size while maintaining significant detail and accuracy.

The ISOBRL6 file extension, short for ISO/TR 11548-1 Braille 6 dots, is a digital format used to store and represent Braille characters and documents. It is an enhanced version of the original ISOBRL format, offering improved features for displaying textual and symbolic information in Braille. This format supports a wide range of Braille codes, character sets, and languages, making it suitable for Braille printing, displays, and electronic readers for visually impaired individuals. The ISOBRL6 format adheres to the international standard ISO/IEC 14496-28, ensuring compact and portable representation of Braille text for electronic systems.