On 21/5/04 3:48 PM, Richard Kenward wrote > I thought it would be interesting to > see how visible the difference would be on a monitor known for its great > tonal smoothness.
Dear RIchard and all. I tend to see why David is pointing a final printed results rather than comparative observations in a fine screen, since a smooth screen may show relatively well a file that is already serrated like my own comb, but we can only ascertain this through the Histrogram or worse yet, if we go and blisdly send this file to printed. I know no one does that, but if dithering introduces no changes at teh level of printed results it makes little difference if someone sees or does not see visible changes on screen. There are many published examples of methods overdoing something to then go back to "normal", like over-upsizing on purpose and then downsizing to final file size which have not been proven to be any more affective than others, simpler and straightforward methods to do something we have to always do with extreme care, specially not overdoing it in anyway... There are also many reports on recovering a serrated histogram after over- tweaking the files , just by applying different strenght of Gaussian Blurs to each indivdual R-G and B channel, just adding enough blur as to undo the combing, as seen in the general RGB histogram, and again, whatever the screen shows has little relation with how will you actually improve the printed quality of such file after those precedures are performed. Regards Jorge Parra www.TheStylePortfolios.com =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
