Isn't demosaicing what you do when you pull up all the little tiles from a 70's era bathroom?
2008/9/28 Derby Chang <[EMAIL PROTECTED]>: > > I know you understand what I mean. Dave asked why his red channel looked > soft. I meant that looking at just one channel after demosaicing was not > looking at the full resolution of the sensor > > I humbly apologise to your Holiness I was not clear. > > D > > > Godfrey DiGiorgi wrote: >> >> Then I don't understand your sentence below. Dave is looking at individual >> channels in RGB which, as you say, will be softer than the full three >> channel composite. >> >> At this point in the process, Bayer demosaicing and gamma interpolation >> happened long ago ... >> >> So what does "The Bayer demosaicing will then be trying to interpolate >> from what information it has" have to do with the fact stated above? >> >> G >> >> >> >> On Sep 27, 2008, at 5:45 PM, Derby Chang wrote: >> >>> >>> Yes, that's my point. If you are looking at a predominantly green image, >>> the detail is in the green. Looking at the red channel means you are looking >>> at rather less resolution than the full RGB image >>> >>> D >>> >>> >>> >>> Godfrey DiGiorgi wrote: >>>> >>>> When you're looking at an RGB channel file in Photoshop, the Bayer >>>> demosaicing is long past. >>>> >>>> Godfrey >>>> >>>> On Sep 27, 2008, at 4:37 PM, Derby Chang wrote: >>>> >>>>> >>>>> Don't forget, Dave, individual channels will be "softer" than the full >>>>> RGB image, especially if you are looking in one channel and the most of >>>>> the >>>>> colours are in the other two. The Bayer demosaicing will then be trying to >>>>> interpolate from what information it has. >>>>> >>>>> D >>>>> >>>>> >>>>> David J Brooks wrote: >>>>>> >>>>>> Good, its not my eyes.:-) >>>>>> >>>>>> I tried adjusting sharpness on that channel but did not see any >>>>>> change. I;'m sure i;m doing something wrong, or, the photos from the >>>>>> D200 ARE really soft. >>>>>> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. >> > > > -- > > [EMAIL PROTECTED] > http://members.iinet.net.au/~derbyc > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
