An HDR file is a high dynamic range raster image file format.
(A raster consists of a matrix of cells or pixels arranged in rows and columns forming a grid in which each cell contains a value representing information.)
An HDR file is used to store digital photos.
An HDR file is used to enhance the color and brightness of digital images that have limited dynamic range, resulting in an image close to natural.
HDR files are saved as 32-bit raster images.
Each manufacturer has its own format (NEF at Nikkon, RAW at Canon, etc.).
These formats are also referred to as HDR or HDRI (High Dynamic Range Imaging).
These formats are capable of capturing a much wider spectrum of color and light than our eyes allow us to see.
Images saved in HDR format are used for improving photo quality in terms of color and brightness and are able to display the widest possible range of pixel values.
Direct light, sunlight as well as extreme shadows can be captured in such a way as to ensure optimal color rendition.
Dull areas, shadows, ... can be easily reworked with HDR images.
The pixel values of an HDR file can span the entire tonal spectrum present in the real world.
HDR images can be created by merging different photographs in specific ways.
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