On 6/2/03 14:06, Mike Usiskin wrote: > what is the best way to convert Colour RGB to B&W?
Dear Mike, Sorry for coming in late on this one. Once again, I find myself having to catch up on an awful lot of ProDig traffic... Anyway, I use the following method regularly and find it works well: With your 8 bit RGB document, create a new Hue/Saturation layer and change its blending mode to 'Color' (doesn't say 'Colour' even in the British version <G>). Don't do anything to this layer yet, other than the change in blending mode. Create another hue/saturation layer above it and de-saturate the Master 'channel' by 100%. Now you are effectively left with a method of channel mixing resting below the de-saturated layer. Simply open the first h/s layer and play with the hue slider in the Master channel until you land upon your desired effect. You can, of course, investigate making further (much more subtle) adjustments in all the other channel tabs.... As I am a tidy sort of chap, I then create a new set called 'BW' and keep these layers tucked away together, I often find myself using a setting of around +130 so that more information from the green channel (where most of the detail within a digital image resides) is brought into the mix. A very neat and flexible way of working. I hope this helps. Best wishes, JL -- :: JACK LOWE PHOTOGRAPHY :: +44 (0)191 224 5150 :: http://www.jacklowe.com :: DIGITAL SERVICES http://www.jacklowe.com/digital =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
