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Convert CAL to HDR

Convert CAL images to HDR format, edit and optimize images online and free.

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

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.

CAL Converter

Radiance HDR (.hdr)

HDR stands for High Dynamic Range, and in the context of Radiance, it refers to a file format used for storing high-quality images. The Radiance HDR format was developed as part of the Radiance rendering system, which originated in the late 1980s at the Lawrence Berkeley National Laboratory. Its primary use is in the field of computer graphics, where it captures a wider range of luminance levels compared to standard formats, enabling more realistic lighting effects. This format is particularly beneficial for tasks requiring precise light measurements and accurate visualizations, making it indispensable for professionals in fields such as architectural visualization and visual effects.

HDR Converter More About HDR

How to convert CAL to HDR?

  1. Upload CAL File

    Select any CAL image you wish to convert by clicking the Choose File button.

  2. Select CAL Tools

    For advanced customized conversion, use CAL to HDR tools and click Convert.

  3. Download Your HDR

    After the convert is complete, click on the Download button to get your HDR image.

Convert CAL to HDR

Frequently Asked Questions

How to change CAL format to HDR?

To change CAL format to HDR, upload your CAL file to proceed to the preview page. Use any available tools if you want to edit and manipulate your CAL file. Click on the convert button and wait for the convert to complete. Download the converted HDR file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert CAL to HDR on macOS

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

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

Convert CAL to HDR 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 CAL file location or include path to your input file.
  3. Paste and execute the command below, substituting in your CAL_INPUT_FILE name or path. $ vertopal convert CAL_INPUT_FILE --to hdr

Convert CAL to HDR on Linux

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

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

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