opencv基本操作四

int cv::borderInterpolate (int p, int len, int borderType)void cv::copyMakeBorder (InputArray src, OutputArray dst, int top, int bottom, int left, int right, int borderType, const Scalar & value = Scalar() )

borderType

BORDER_CONSTANT (固定值)

iiiiii|abcdefgh|iiiiiii with some specified i

BORDER_REPLICATE (边界值替换)

aaaaaa|abcdefgh|hhhhhhh

BORDER_REFLECT (镜像)

fedcba|abcdefgh|hgfedcb

BORDER_WRAP (平铺)

cdefgh|abcdefgh|abcdefg

BORDER_REFLECT_101 (镜像)

gfedcb|abcdefgh|gfedcba

效果

原始图片

BORDER_CONSTANT

BORDER_REPLICATE

BORDER_REFLECT

BORDER_WRAP

BORDER_REFLECT_101