Convert CAL to PHM
Convert CAL images to PHM format, edit and optimize images online and free.
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The CAL file extension, known as CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image, is a 1-bit black-and-white raster image format developed by the U.S. Department of Defense in the mid-1980s to standardize graphics data interchange for military documentation. It is primarily used for storing and sharing monochrome images while retaining orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images.
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.
Drag and drop or manually select the CAL file from your system.
Refine the CAL image using tools before converting to PHM.
Once the PHM process is finished, the file will be ready for download.
The Vertopal CLI ensures reliable conversion of CAL image into PHM image formats.
cd to reach the CAL folder or reference the path.