Convert PHM to MIFF

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 Magick Image File Format (MIFF) is a platform-independent format developed by John Cristy for ImageMagick, designed to store bitmap images. MIFF supports extensive metadata, including image color profiles, comments, and copyright information, making it versatile for various applications. It is particularly useful in image processing and conversion tasks due to its ability to handle multiple image formats like JPEG, TIFF, and PNG. MIFF's history dates back to its inception as part of the ImageMagick toolkit, which is widely used for image manipulation across different platforms.