Archived posting to the Leica Users Group, 2000/10/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> > > Kodak noted in an interview with the developer of the CCD chip that they > > > are not afraid to sell the chip to others as the true knowledge is not the > > > chip, but the software for image manipulation and the algorithms for capturing > > > and compressing and correcting the raw ccd sensor output. > > > > That sounds kinda silly. No real algorithms are used in capturing the > > data...you scan the array, and get the data. > I hope Jim Brick weighs in here, but there are algorithms involved. > the most common digital array is: > RGBGRGBG > GBGRGBGR > as I recall. This then has to be interpolated to the 24-bit depth > image. Also, the response of each CCD element is not identical to > the others, so the signal has to be adjusted.All of this has to > happen, then get written to the storage media before the next shot, > or during. Yes, you are correct that the current consumer arrays do use 4 sensors to make up color. The algorithms used are used in every digital camera, and aren't really that special. That aside, it wasn't what I was referring to though. The 'new' technologies, such as, I believe, the Foveon, use three sensors, and so it used three sensors per color pixel, this type of data manipulation that is used in a Bayer pattern as you describe is not required.