新版的图像用sdk，虽然有点难用，不过对没时间的人很有帮助。-Developer’s Image Library was previously called OpenIL, but due to trademark issues, OpenIL is now known as DevIL. DevIL is an Open Source programming library for programmers to incorporate into their own programs

运用lsd算法检测图像中所包含的直线，现以一钢坯图像为例(it can detective the lines in the picture)

FFTW源码及各平台库文件（arm64-v8a平台、armeabi平台、armeabi-v7a平台、mips平台、mips64平台、x86平台、x86_64平台等）(FFTW source code and library files(arm64-v8a, armeabi, armeabi-7a, mips, mips64, x86, x86_64))

libyuv is an open source project that includes YUV scaling and conversion functionality. Scale YUV to prepare content for compression, with point, bilinear or box filter. Convert to YUV from webcam formats for compression. Convert to RGB formats