Hi Austin- It's not so complicated, really, although I think I may have unintentionally confused things (the first time, really, I swear!! ;^) The "better rendering of skin tones" actually refers to converting color images to B&W, which is what I believe the PS convert to greyscale channel mix is based on. In this case, we are using the same canned channel mix to go from our RGB scan of a B&W image to a GS file, which, as you and others have pointed out, may not give the best results as a custom mix. There, I've made it all clear, right? ;^) Regards, Bill on 1/23/04 9:10 AM, Austin Franklin wrote: > Hi Bill, > > I'm skeptical that there is any need for "particular" color information to > "better render Caucasian skin tones" when scanning B&W negatives. Perhaps > you, or someone, could explain what this color information is? I'm all ears > ;-) > > Regards, > > Austin > >> 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=267637.4116732.5333197.126177 >> 4/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?s >> ubject=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] >> >> >> 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 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 >> >> Your use of Yahoo! Groups is subject to: >> http://docs.yahoo.com/info/terms/ >> >> > > > 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 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 > > Your use of Yahoo! Groups is subject to: > http://docs.yahoo.com/info/terms/ > >
Message
Re: [Digital BW] Scanning B&W negatives
2004-01-23 by Bill Morse