v1.8.1

minor performance tuning

v1.8.1+rc1

#10

v1.8.0

#9

• add canny (canny edge detector)
• specifiable erosion/dilation box size
• add libyuv comparing w/ cgo benchmark and imaging

v1.7.0

#7

• add laplacian
• add gradient
• add highpass
• add erosion
• add dilation
• improve grayscale performance

v1.6.0

#6

• add laplacian filter
• update JIT benchmark results to be easier to read.

v1.5.0

#5

• add Rotate

v1.4.0

#4

• add emboss
• adapt CPU feature.

v1.3.0

#3

• tune integer divide
• alloc/free internal api change
• add invert func

v1.2.0

#2

v1.1.0

#1