Convert ERF to PHM

The ERF file extension, short for Epson Raw File, is a proprietary format used by Epson digital cameras to store uncompressed, raw image data. Developed by Epson, this format retains all original sensor data, allowing photographers to produce high-quality images with extensive post-processing flexibility. ERF files can be opened and edited using specialized software like Adobe Photoshop and Epson PhotoRAW. Despite their large size, ERF files are favored by professionals for their superior image quality and editing capabilities.

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.