Convert BMP to PHM

The BMP (Bitmap Image) file extension is a raster graphics format used primarily for storing digital images. Developed by Microsoft, BMP files retain high image quality due to their lack of compression, making them ideal for preserving detailed and colorful images. Introduced in the early days of Windows, BMP's simplicity and widespread compatibility have cemented its role in digital imaging, despite being superseded by more efficient formats in many applications.

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.