I think many DSLRs have something like this built in. You can "clean" the sensor through a menu option, and I believe the camera maps the sensor to find dead or hot pixels, and then interpolates around them.
chris On Sun, 28 Sep 2003, Robert Gonzalez wrote: > I bet a simple program could be written to take a hot pixel file (1s > exposure with the cap on) and use it to interpolate around the hot > pixels, thus cleaning up the image. It would be easy to do with RAW, a > little harder to do with JPEG. > > rg > > > William Robb wrote: > > ----- Original Message ----- > > From: "Cotty" > > Subject: Re: *ist D > > > > > > > >>On 27/9/03, [EMAIL PROTECTED] disgorged: > >> > >> > >>>Gads, my 6mp camera has 2 hot pixels. My 3.2 mp camera has 3. I can only > >>>imagine how many there would be on a medium format sensor..... > >> > >>At the risk of sounding dumb, how does one spot a hot pixel on a DSLR? > > > > > > They stick out like a sore thumb if they happen to fall in a dark area. The > > really bad one on my camera is bright purple, and very visible. > > On my G1, I had a bright red one, and I believe one was green. I know there > > is a third on it, but I don't recall what colour it is. > > > > William Robb > > > > > >
