Convert PCD to PHM

The PCD (Photo CD) file extension, developed by Kodak, is used for storing digital images on a Photo CD. This format was introduced in the early 1990s to digitize and archive physical photographs. PCD files contain high-resolution images scanned from film, typically at resolutions of 3072 x 2048 pixels or higher. These files are utilized for preserving, viewing, and editing images using compatible software. The PCD format supports 24-bit color and includes multiple resolutions within a single file, facilitating versatile image processing and archival purposes.

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.