sift 旋转方向法

matlab7 的运算符号，有关点乘和左除法、右除法-matlab7 computing symbols, the scalar multiplication and division of left and right division

面型编辑工具，组态软件中常常用到库浏览的功能，这个工具就是用来做图形库的-face editing tools, configuration software is often used for access to the functions of this tool is used for graphics library

STM32 Cryptographic Library Introduction This manual describes the API of the STM32 cryptographic library (STM32-CRYP-LIB) that supports the following cryptographic algorithms:  AES-128, AES-192, AES-256 bits. Supported modes are: – ECB (Electronic Codebook Mode) – CBC (Cipher-Block Chaining) with support for ciphertext stealing – CTR (CounTer Mode) – CCM (Counter with CBC-MAC) – GCM (Galois Counter Mode) – CMAC – KEY WRAP  ARC4  DES, TripleDES. Supported modes are: – ECB (Electronic Codebook Mode) – CBC (Cipher-Block Chaining)  HASH functions with HMAC support: – MD5 – SHA-1 – SHA-224 – SHA-256  Random engine based on DRBG-AES-128  RSA signature functions with PKCS#1v1.5  ECC (Elliptic Curve Cryptography): – Key generation – Scalar multiplication (the base for ECDH) – ECDSA These cryptographic algorithms can run in the series STM32F1, STM32 L1, STM32F2, STM32F4, STM32F0 and STM32F3 with hardware enhancement accelerators.

用VC++实现透明窗体-with VC transparent Window

图像边缘检测，与图像处理，图像分割的常用代码-Image edge detection, and image processing, image segmentation of the common code

实现yuv420转rgb565的功能，并且封装成了库，写出了测试文件-Achieve yuv420 turn rgb565 functions, and packages into libraries, write a test file

GBA mode3绘图范例-GBA graphics model mode3

implementation of SURF feature extractor

face & serial & tracking

Simple demonstration on GL_lines.