See:
help uint8
UINT8 Convert to unsigned 8-bit integer.
I = UINT8(X) converts the elements of the array X into unsigned 8-bit
integers. X can be any numeric object, such as a DOUBLE. The values
of a UINT8 range from 0 to 255, or INTMIN('uint8') to INTMAX('uint8').
Values outside this range saturate on overflow, namely they are mapped
to 0 or 255 if they are outside the range. If X is already an unsigned
8-bit integer array, then UINT8 has no effect. DOUBLE and SINGLE values
are rounded to the nearest UINT8 value on conversion.
Some arithmetic operations are defined for UINT8 on interaction with
other UINT8 arrays. For example, +, -, .*, ./, .\ and .^.
If at least one operand is scalar, *, /, \ and ^ are also defined.
UINT8 arrays may also interact with scalar DOUBLE variables, including
constants, and the result of the operation is UINT8.
UINT8 arrays saturate on overflow in arithmetic.
You can define or overload your own methods for the UINT8 class (as you
can for any object) by placing the appropriately named method in an
@uint8 directory within a directory on your path.
Type HELP DATATYPES for the names of the methods you can overload.
A particularly efficient way to initialize a large UINT8 arrays is:
I = zeros(1000,1000,'uint8')
which creates a 1000x1000 element UINT8 array, all of whose entries are
zero. You can also use ONES and EYE in a similar manner.
Example:
X = 17 * ones(5,6,'uint8')
See also DOUBLE, SINGLE, DATATYPES, ISINTEGER, UINT16, UINT32, UINT64,
INT8, INT16, INT32, INT64, INTMIN, INTMAX, EYE, ONES, ZEROS.
Documentation for uint8
doc uint8
Other uses of uint8
categorical/uint8 embedded.fi/uint8 matlab/uint8
codistributed/uint8 gpuArray/uint8 opc.hda.Data/uint8
