Re: [Digital BW] Interpolation
2002-02-07 by SKID Photography
... How can you say that? If it s only about the final image, this group would only discuss aesthetics and not technique. I for one, am very anti-equipment,
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Interpolation
2002-02-07 by millerhillsteve
Ok folks, I think that s enough already. I would say that if you take a picture and convert it to Black and White and you like it...that s where the rubber
[Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by tomoc
To all interested in the digital test: I may be way off on Canon cameras, but I can speak pretty accurately for Nikon (D1 series, at least) (and I just bought
Re: [Digital BW] Re: Golden Varnish
2002-02-07 by shashinka@aol.com
I ve used MSA varnish and because it has to be thinned with turpentine, it is not a pleasant experience when brushing. It also is a bit harsh on the surface
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Austin Franklin
... Hi Bob, My comment was about interpolation, not the B&W conversion. Regards, Austin
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by bob geoghegan
To jump back in, having learned a lot from this discussion. Here s Canon ... Images taken directly with the camera will have finer details than one that is
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Austin Franklin
... No, not typically... ... Yes. It s not a straight forward problem. Remember, each sensor from a quad RGBG isn t looking at the exact same thing...so they
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Austin Franklin
Hi Harvey, ... Actually, it s REALLY simple, you d be surprised. Regards, Austin
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Austin Franklin
I ve been waiting for someone to write an article like this one, as I do not have the time. Thanks for the link! Now my job of explaining this has been
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
Harvey I don t think either of us know how these cameras handle grayscale mode, which is what this has been about, so to reduce confusion, until further info
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by SKID Photography
... But the luminance is only captured for the specific color of the specific sensor. Which is only 1/3 of the information needed to be real. For example,
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by SKID Photography
... Todd, But the luminance is only captured for the specific color of the specific sensor. Which is only 1/3 of the information needed to be real. For
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Pics4U@en.com
... The difference is in the chrominance and luminance. You get far greater critical information from the luminance channel than from the chrominance channels.
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
... That sounds familiar. ... That I never disputed. My only point was that each sensor did record detail, which it does, but I was forgetting that each sensor
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
... Well, it depends on how literal we want to be. See, I think I m correct in an absolute sense, just not a practical sense. I not clear on how these cameras
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by SKID Photography
Todd, My understanding of the interpolation is that it takes the specific color information from the one sensor, and then it borrows some data from the
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
I see. So without interpolation my little 4 pixel grid would be analogous to putting on a camera lens a filter which is split into 4 quadrants of color, which
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by SKID Photography
... Stop right there and you have your answer. INTERPOLATED INFORMATION! Not reality. End of more real information. Harvey Ferdschneider partner, SKID
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
on 2/7/02 1:22 AM, Todd Flashner wrote: Allow me to try to clarify something I wrote below, because as is it s contradictory. ... Above I say that
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Jason DeFontes
But in a typical digital camera there s a color filter placed over the chip such that your 4 pixel grid would be: [R][G] [G][B] ...so there s no way to take a
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
... Say your sensor is a grid of two sensors across by two down. In grayscale mode you get a 4 pixel capture. You have 4 pixels of detail, represented by one
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Austin Franklin
... More than likely, it takes the color value and just converts it to grayscale. I doubt they get more sophisticated than that, though they could...somewhat.
Re: Golden Varnish
2002-02-07 by mwesley3
Elizabeth, Check out the Files section of the Group under coatings. Also search the Archives and the Piezo list for coatings and you will find a great deal of
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
Hi Austin, thanks for weighing in. ... Well, to quote you, yes and no. Even the absence of light gets recorded as a detail. It d be a black pixel, no? As you
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by SKID Photography
... I do not understand how one can separate color information and detail ? They are one and the same. It s not like there are separate or different parts
RE: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Austin Franklin
... Yes and no... ... Well, yes and no...each sensor definitely gets unique data, but as far as it being actual grayscale data, not really. It s just like
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by Todd Flashner
... What I took from my question to Austin (Horses Mouth, about a week ago) is that these one shot cameras interpolate color, not detail. As you say A red
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by SKID Photography
... Conceptually shooting in B&W mode should give less interpolation, but it will depend on how your particular camera captures the B&W data. If you camera
Re: SF BAY AREA MEETING --- LAST CALL !!
2002-02-07 by jamesmsims
Don, Is it too late to join in? I would being coming down from Mendocino but I have some other appointments anyway, so I could work them around this meeting.
MIS VM and Epson Photo Stylus 1280
2002-02-07 by mkravit
Folks, I spent the evening printing images on my 1280 with the MIS VM inks and Pauls 1280 curves for the PC. I really have to say that the Epson driver really
[Digital BW] Re: Digicam in BW mode, how to test
2002-02-07 by interrante
Oops, yes thanks. The risks of answering before coffee. Mark http://www.interwalk.com/gallery.htm ... tool ... to ... want in ... different BW ... photoshop.
[Digital BW] Head to Head comparison
2002-02-06 by Robert G. Morrison
Antonis and I are comparing MIS Perpetuals, Generation 4 and the Indelible Ink Set on Epson 1270 s running CIS. Although we are principally interested in
Re: OT
2002-02-06 by johnvphoto
... networking 3 ... Trish, Go to Three Macs and a Printer: http://www.atpm.com/network/ It has great info for what you want to do. You can also download it
Re: [Digital BW] Re: OT
2002-02-06 by Patricia Ternahan
Cool...thanks!
Re: [Digital BW] FWD:Indelible Inks - User Report
2002-02-06 by SKID Photography
... Lawrence, I will try to remember to do that, but below was one of Robert s responses to the Indelible post. Harvey Ferdschneider partner, SKID Photography,
OT
2002-02-06 by Patricia Ternahan
Does anyone out there have a recommendation regarding networking 3 Macs(G3-G4DP-G4Cube)--two monitors...one user? Here is what I need/want: I want to be able
[Digital BW] Re: Help with shadows
2002-02-06 by Paul Roark
Steve & Peotr, If you can e-mail to me 72 dpi (that is, low resolution) RGB scans of the test strips (Jpeg level 10), I can see if we have a common problem out
Re: Digicam in BW mode, how to test
2002-02-06 by riskdr8138
... with a larger file size and more bit depth (whatever the hell that means)so you have more information in the original file. is that any advantage? i don t
RE: [Digital BW] FWD:Indelible Inks - User Report
2002-02-06 by Lawrence Smith
... Very interesting. Thanks for sharing. What head to head is Robert doing? Would you let us know the results as well? Lawrence Smith
FWD:Indelible Inks - User Report
2002-02-06 by SKID Photography
I am forwarding this report from an Indelible Ink user on the Ink Options list , as there have been so many questions about the Indelibles and the desire to
Re: [Digital BW] Digest Number 454
2002-02-06 by Roger Smith
on 2/5/02 10:31 AM, DigitalBlackandWhiteThePrint@yahoogroups.com at ... Alan, I m very impressed with the quality of the scan - I have been considering the
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-06 by bob geoghegan
I appreciate the suggestions on converting color to BW. The benefits of post-shooting conversion from color are obvious. But the other side of the question
New desktop printer RIP
2002-02-06 by mkravit
I heard a little while ago that Colorbyte Software will be releasing a desktop printer version of their large format printer RIP soon that will be priced under
Re: [Digital BW] Roark, VM ink on EAM, Epson 870, Profiles, and Mac
2002-02-06 by tzinzunzan2000
I use the brightness and contrast sliders in the print dialog box to match my print to what I see on the screen. (BTW I have gone through the gamma routine and
Re: [Digital BW] Re: Help with shadows
2002-02-06 by Todd Flashner
Have you guys gone to the MIS site lately to make sure you have the latest curves for your printer and operating system, and are you aware that different
Re: [Digital BW] Roark, VM ink on EAM, Epson 870, Profiles, and Mac
2002-02-06 by Todd Flashner
... Sounds like you are scanning in RGB, then converting to Grayscale, then back to RGB? If so you can probably skip the conversion to grayscale by using
Re: Digicam in BW mode, how to test
2002-02-06 by riskdr8138
... you will get the rgb image and the red, green and blue channels. this gives you an idea of what the image would look like with these three filters (don t
Re: [Digital BW] Re: Digicam in BW mode, how to test
2002-02-06 by Carolyn Frayn
It s called channel mixer ... not color mixer snip ... and convert to profile or grayscale mode conversion... best, Carolyn
Re: Digicam in BW mode, how to test
2002-02-06 by interrante
Hi, It seems the consensus on the digital photo boards is that capturing in full color on a digital camera is the way to go. One of the main reasons is that
Re: Roark, VM ink on EAM, Epson 870, Profiles, and Mac
2002-02-06 by riskdr8138
i have done two things to darken images. one is i have created a darkening curve which i have stored in the my documents folder and i load it when i need it. i