Convert PHM to G4
Convert PHM images to G4 format, edit and optimize images online and free.
Drop Files Anywhere to Upload
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.
The G4 file extension is linked to the CCITT Group 4 Fax Image format, recognized by the International Telecommunication Union (ITU) for its ability to compress monochrome images without data loss. This format is integral to fax technology, employing a two-dimensional coding system that identifies image patterns, resulting in high compression ratios and minimized file sizes, key for efficient document transmission.
Click the Choose File button to select the PHM file.
Use any available convert tools on the preview page, and click Convert.
Once the convert is complete, you can download the final G4 file.
To change PHM format to G4, upload your PHM file to proceed to the preview page. Use any available tools if you want to edit and manipulate your PHM file. Click on the convert button and wait for the convert to complete. Download the converted G4 file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to PHM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to PHM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to PHM file location or include path to your input file.