Graphics |
Working with 8-Bit and 16-Bit Images
MATLAB usually works with double-precision (64-bit) floating-point numbers. However, to reduce memory requirements for working with images, MATLAB provides support for storing images as 8-bit or 16-bit unsigned integers by using the numeric classes uint8
or uint16,
respectively. An image whose data matrix has class uint8
is called an 8-bit image; an image whose data matrix has class uint16
is called a 16-bit image.
The image
function can display 8- or 16-bit images directly without converting them to double precision. However, image
interprets matrix values slightly differently when the image matrix is uint8
or uint16
. The specific interpretation depends on the image type.
RGB (Truecolor) Images | 8-Bit and 16-Bit Indexed Images |
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