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Convert PHM to CALS

Convert PHM images to CALS format, edit and optimize images online and free.

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Portable Float-map Image, 16-bit half (.phm)

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.

PHM Converter

Continuous Acquisition and Life-cycle Support Type 1 Image (.cals)

The CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image file format, developed by the United States Department of Defense in the mid-1980s, is a standard for storing raster (bit-mapped) image data, typically black-and-white. It ensures efficient data interchange and retention of orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images. This standard was part of the broader CALS initiative aimed at improving electronic publishing and data management within the federal government.

CALS Converter

How to convert PHM to CALS?

  1. Upload PHM File

    Drag & drop or browse your device to select and upload your PHM file.

  2. Select PHM Tools

    For advanced customized conversion, use PHM to CALS tools and click Convert.

  3. Download Your CALS

    Let the file convert, then you can download your CALS file right afterward.

Convert PHM to CALS

Frequently Asked Questions

How to change PHM format to CALS?

To change PHM format to CALS, 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 CALS file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert PHM to CALS on macOS

Follow steps below if you have installed Vertopal CLI on your macOS system.

  1. Open macOS Terminal.
  2. Either cd to PHM file location or include path to your input file.
  3. Paste and execute the command below, substituting in your PHM_INPUT_FILE name or path. $ vertopal convert PHM_INPUT_FILE --to cals

Convert PHM to CALS on Windows

Follow steps below if you have installed Vertopal CLI on your Windows system.

  1. Open Command Prompt or Windows PowerShell.
  2. Either cd to PHM file location or include path to your input file.
  3. Paste and execute the command below, substituting in your PHM_INPUT_FILE name or path. $ vertopal convert PHM_INPUT_FILE --to cals

Convert PHM to CALS on Linux

Follow steps below if you have installed Vertopal CLI on your Linux system.

  1. Open Linux Terminal.
  2. Either cd to PHM file location or include path to your input file.
  3. Paste and execute the command below, substituting in your PHM_INPUT_FILE name or path. $ vertopal convert PHM_INPUT_FILE --to cals

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