Editing 32-bit computing (section)

==Images==
In digital images/pictures, 32-bit usually refers to [[RGBA color space]]; that is, 24-bit [[24-bit color|truecolor]] images with an additional 8-bit [[alpha channel]]. Other image formats also specify 32 bits per pixel, such as [[RGBE image format|RGBE]].

In digital images, 32-bit sometimes refers to [[high-dynamic-range imaging]] (HDR) formats that use 32 bits per channel, a total of 96 bits per pixel. 32-bit-per-channel images are used to represent values brighter than what [[sRGB]] color space allows (brighter than white); these values can then be used to more accurately retain bright highlights when either lowering the exposure of the image or when it is seen through a dark filter or dull reflection.

For example, a reflection in an oil slick is only a fraction of that seen in a mirror surface. HDR imagery allows for the reflection of highlights that can still be seen as bright white areas, instead of dull [[grey]] shapes.