On Thursday 01 February 2007 12:56 pm, Rick Sewill wrote: > On Thu, 2007-02-01 at 11:06 +0000, Anne Wilson wrote: > > In the thread "webcam support/hardware compatibility list" Riick > > Sewell wrote > > > > The person at http://mxhaard.free.fr/ was very helpful in getting > > the webcam to sort of work. Unfortunately, my knowledge of > > webcams and color was so limited I could only help him to a > > point, and he had to wait for more knowledgeable people to get > > this webcam to get the colors even close to being correct. > > > > Rick, can you give us some idea of what you had to do? It may > > give us a clue for troubleshooting our own colour problems. > > I wish I could give a good answer to this question. > > The person at http://mxhaard.free.fr had a way to dump registers, > from the webcam. I sent him a message, with these registers. We > were lucky when he made a guess the webcam chip set was similar to > a chip set the driver supported. > > He sent me an updated driver, he thought might be able to get an > image. > > I compiled the driver, from him, and ran a tool, he had on his > website, that showed what was being seen from the webcam. The tool > could take a picture. > > I would take a picture and send the picture to him. He would look > at the picture and tell me what lines to change in the driver. I > would change those lines, take another picture, and send him the > picture. > > We would repeat the process as far as we were able. > > He was able to get a picture. The colors in the picture were poor. > > What he needed was a person who understood more about cameras and > lighting and color--all things I did not know. > > I was a pair of hands. I got lost when he tried to explain the > different color things--YUV, parameters to try for red, green, > blue, gamma. I am not a camera buff. He was very patient with me. Rick. Thank you for your reply. Anne is using the ATrpms version of the driver, whereas I am using the MXHaard driver. I tried the ATrpms driver, but found no difference. I too am getting poor colours and very variable picture definition, depending on the program. Like Anne, I find that the video controls in the different programs either do not work at all, or make enormous changes to the picture as soon as I touch them. So I don't know if it is the driver (strange that two different drivers should give similar results) or the programs. I hate to say this but, in XP, my Logitech web cam, using the Logitech driver, gives an excellent picture. Perhaps either a contact with Michael XHaard, or with Logitech is called for. Cheers Keith
