opencv二值化 threshold

double threshold(InputArray src, OutputArray dst, double thresh, double maxval, int type)

• src – input array (single-channel, 8-bit or 32-bit floating point).
• dst – output array of the same size and type as src.
• thresh – threshold value.
• maxval – maximum value to use with the THRESH_BINARY and THRESH_BINARY_INV thresholding types.
• type – thresholding type (see the details below).

• THRESH_BINARY

  

• THRESH_BINARY_INV

  

• THRESH_TRUNC

  

• THRESH_TOZERO

  

• THRESH_TOZERO_INV

THRESH_OTSU：函数会用OTSU得到自动动阀值，参数threshold不再起作用。


void adaptiveThreshold(InputArray src, OutputArray dst, double maxValue, int adaptiveMethod, int thresholdType, int blockSize, double C) ？