Convert J2C to PHM
Convert J2C images to PHM format, edit and optimize images online and free.
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The J2C file extension stands for JPEG 2000 Code Stream, a format defined in Part 1 of the JPEG 2000 standard. Developed by the Joint Photographic Experts Group (JPEG) from 1997 to 2000, J2C files utilize wavelet-based compression, supporting both lossy and lossless compression. This format is primarily used for high-quality image storage and transmission, offering superior compression efficiency and flexibility compared to the original JPEG standard. J2C files are often embedded within other file formats like JP2 for enhanced metadata support.
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.
Click the Choose File button to select the J2C file.
For an advanced conversion, use the J2C to PHM optional tools available on the preview page and click the Convert button.
You will be redirected to the download page to see the conversion status and download your PHM file.
To change J2C format to PHM, upload your J2C file to proceed to the preview page. Use any available tools if you want to edit and manipulate your J2C file. Click on the convert button and wait for the convert to complete. Download the converted PHM file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to J2C file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to J2C file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to J2C file location or include path to your input file.