https://developer.android.com/media/platform/hdr-image-format
Ultra HDR Image Format v1.1 | Android media | Android Developers
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https://tomseditor.com/convert/convert-image-from-HDR-to-GRAY?l=en
Convert an image from .HDR to the .GRAY format - Tom's Editor
Convert photos online. Change JPEG into PDF, GIF, BMP, SVG
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