Convert DCX to PHM

The DCX file extension, standing for ZSoft Multi-page Paintbrush Image, is a raster image format developed by ZSoft Corporation. It is primarily used for creating multi-page digital fax files, containing a sequence of PCX images. Each DCX file begins with a small header identifying the file, followed by multiple embedded PCX files. This format was widely adopted in early digital faxing and document imaging applications due to its ability to handle multiple pages within a single file.

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.