Question

matlab unit8格式

我有两个数值矩阵是：unit8格式
两个矩阵不能相减
应该把unit8转化为什么格式的才可以相减呢？

Answer 1

代表无符号的8位整数，最大值为255。
MATLAB支持的数据类型有：
double -- Double precision floating point numeric array
logical -- Logical array
char -- Character array
single -- Single precision floating-point numeric array
float -- Double or single precision floating-point numeric array
int8 -- 8-bit signed integer array
int16 -- 16-bit signed integer array
int32 -- 32-bit signed integer array
uint32 -- 32-bit unsigned integer array
int64 -- 64-bit signed integer array
integer -- An array of any of the 8 integer classes above
numeric -- Integer or floating-point array
cell -- Cell array
struct -- Structure array
function_handle Function handle
'class_name' Custom MATLAB object class or Java class

Answer 2

double或者int应该可以，unit8记得是图像用到的