I got a pair of old robot controller boards based on 8051. It could drive four DC motors through its two L293 H-Bridge drivers, a 16×2 character LCD, an RS232 port and plenty of IO pins.But it was based on anĀ old 8051, and that could be the reason that someone discarded this board in a junkyard.
Archive for July, 2011
The steps for training a haar classifier and detecting an object can be divided into :
- Creating the description file of positive samples
- Creating the description file of negative samples
- Packing the positive samples into a vec file
- Training the classifier
- Converting the trained cascade into a xml file
- Using the xml file to detect the object
Let us see all these steps in detail. View full article »

