Convert MRW to PHM

The MRW file extension, short for Minolta Raw Image, is a raw photo file format developed by Minolta for their Dimage digital cameras. It stores uncompressed, unprocessed image data directly from the camera's CCD sensor, allowing photographers extensive post-processing control over elements like exposure and color balance. After Sony acquired Minolta, the MRW format was gradually replaced by Sony's ARW format, but MRW files remain in use, especially with legacy Minolta cameras. These files are compatible with various photo editing tools, ensuring continued accessibility for high-fidelity image editing.

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.