A Mapping of Type to Numbers in OpenCV
| C1 | C2 | C3 | C4 | |
| CV_8U | 0 | 8 | 16 | 24 |
| CV_8S | 1 | 9 | 17 | 25 |
| CV_16U | 2 | 10 | 18 | 26 |
| CV_16S | 3 | 11 | 19 | 27 |
| CV_32S | 4 | 12 | 20 | 28 |
| CV_32F | 5 | 13 | 21 | 29 |
| CV_64F | 6 | 14 | 22 | 30 |
Unsigned 8bits uchar 0~255
IplImage: IPL_DEPTH_8U
Mat: CV_8UC1, CV_8UC2, CV_8UC3, CV_8UC4
Signed 8bits char -128~127
IplImage: IPL_DEPTH_8S
Mat: CV_8SC1，CV_8SC2，CV_8SC3，CV_8SC4
Unsigned 16bits ushort 0~65535
IplImage: IPL_DEPTH_16U
Mat: CV_16UC1，CV_16UC2，CV_16UC3，CV_16UC4
Signed 16bits short -32768~32767
IplImage: IPL_DEPTH_16S
Mat: CV_16SC1，CV_16SC2，CV_16SC3，CV_16SC4
Signed 32bits int -2147483648~2147483647
IplImage: IPL_DEPTH_32S
Mat: CV_32SC1，CV_32SC2，CV_32SC3，CV_32SC4
Float 32bits float -1.18*10-38~3.40*10-38
IplImage: IPL_DEPTH_32F
Mat: CV_32FC1，CV_32FC2，CV_32FC3，CV_32FC4
Double 64bits double
Mat: CV_64FC1，CV_64FC2，CV_64FC3，CV_64FC4
Unsigned 1bit bool
IplImage: IPL_DEPTH_1U
Mat: CV_64FC1，CV_64FC2，CV_64FC3，CV_64FC4
Unsigned 1bit bool
IplImage: IPL_DEPTH_1U
