Convert WMF to PHM

The Windows Metafile (WMF) is a graphic file format used by Microsoft Windows to store vector and bitmap image data. Originating in the late 1980s, WMF files enable the efficient exchange of graphical content between applications. They serve functions like clip art storage, image rendering in documents, and transferring graphics across different software platforms. Designed to be device-independent, WMF ensures consistent image presentation regardless of the output device, maintaining visual fidelity across varying screen resolutions and printer outputs. As a legacy format, its use has diminished with the advent of more advanced graphical file formats.

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.