Right, I was referring to the rendering of Caucasian skin tones in a B&W negative, scanned in RGB, then converted to greyscale Bill. on 1/22/04 9:34 PM, Austin Franklin wrote: > Hi Bill, > >> > I have heard, but cannot personally confirm, that PS as well as many >> > scanning programs over-emphasize the red channel over the green and blue >> > ones, supposedly to ³better render² (read emphasize) Caucasian skin tones. >> > I seem to remember something like 50 red, 30 green, and 20 blue >> > (don¹t quote >> > me on these exactly! ;^) > > Er, hum...I believe that's for color to B&W conversion...not for an RGB scan > of a B&W negative...there are no "Caucasian skin tones" in a B&W negative > that red would emphasize ;-) > > Regards, > > Austin > > > > Please visit the Group Homepage to check the Files, and other resources as > they are often being updated. > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint > > If you wish to receive no emails or just a daily digest, or you wish to > unsubscribe, please edit your Membership preferences by visiting this same > page. > > Please follow these basic guidelines: > - As threads develop, trim off excess portions of earlier messages to keep > them short. > - Good manners are required at all time. No personal attacks or flames. > Hostile, aggressive or argumentative users may be removed from the membership > without notice. > - Keep your posts and threads related to the group topic of digital B&W > printing. Users who persistently make off-topic posts may be removed from the > membership. > - By posting on this forum you agree to abide by the group rules and > guidelines, and to abide by the actions and decisions of the group Owner and > Moderators. See Group Topic, Rules and Guidelines in the Files section: > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT > YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE OWNER AND > MODERATORS OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU > FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY > DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, > USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE OWNER AND MODERATORS OF > DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH > DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, > THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR > TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD PARTY ON THE > DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER MATTER RELATING TO THE > DIGITAL BW, THE PRINT YAHOO GROUP. > > > > Yahoo! Groups Sponsor > > ADVERTISEMENT > > <http://rd.yahoo.com/SIG=12cbl027u/M=267637.4116732.5333197.1261774/D=egroupwe > b/S=1705019182:HM/EXP=1074911718/A=1945638/R=0/*http://www.netflix.com/Default > ?mqso=60178383&partid=4116732> > > > Yahoo! Groups Links > * To visit your group on the web, go to: > * http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/ > * > * To unsubscribe from this group, send an email to: > * DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com > <mailto:DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com?subject=Unsub > scribe> > * > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service > <http://docs.yahoo.com/info/terms/> . > [Non-text portions of this message have been removed]
Message
Re: [Digital BW] Scanning B&W negatives
2004-01-23 by Bill Morse
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