Op woensdag 12 maart 2003 21:03, schreef Thomas Dodd: > Christian Boon wrote: > > hello, > > > > how can i determine what color a pixel is that is exchanged between an > > usb camera and and application? > > is that some sort of bit coding or where can i find information about > > that? i want to write an application which with i can recognise objects > > and recognise colors.. > > Assumung you have a supported camera. What interface are you wanting to > use? You could use the V4L API and get a give frame in many formats. > Using V4L2 adds a few more and drops one or two. > > The device driver may support different formats at some level, though > interfaces are device specific then. Stick with V4L, preferably using > V4L2 on any new code. i have a Philips PCVC720K/40 and it is supported by the pwc module. Does a frame contain the pixel information i need and where can i find information to decode it? Chris
