been thinking about our friend curves. and how I can make some good use of them.. with out going into too much detail about RGb settings, CMYK settings, scanning, printing etc.. ill just give you th numbers I used today.. step one get info.

this set's me up to asertain correct tonal values of a calibrated file.

this give me the numbers I need to match certain parts of a scan I did... note write down these numbers and then I take 3 sample points. The images ligtest The scanned grey scale's known mid tone Th images darkest area

now if you compare the number's.. they are different. so use curves to make the number's match. in each channel

an authentic before and after... (just need a colour photo to show you the same thing and purchase own greyscale cuz they r quite handy) it's possible to do without one .

step 3- you write down the numbers given in the calibrated file (some times the colour is enhanced because this maneuver) V V V V (for those with out a grey scale if you are lucky enough to have a grey object in the photo (like a bowl of my cooking) you can find it's % of grey . By switching one of the sample points into " grayscale mode" remember it's value and then open up the calibrated file and drag a sample over to the closest shade - give or take 7% - (rounded down) and then switch the sample point's mode back to cmyk to get the "correct grey" write down / use these numbers if you so wish to maintain the greenness of that object when you modify the photo. ^ ^ ^ ^ that is my personal theory, I'm willing to test this out more. I guess renders have different intentions. but maybe this might help people. ( next week RGB with no available grayscale in sight )

Message edited on: 06/27/2004 14:38

Great info Matt! when i saw your title in my ebots i thought you were talking about a "poser" render ;) Thanks for sharing and i look forward to your next installment! :) scott

Thanks! 'writing down', that is an analog thing, isn't it? It involves something called 'paper', which has no undo function, and some kind of ink dispensing utensil. I remember that.

the numbers before match the sample taken in your scan/photo the numbers after match the CMYK values (that are based upon MY settings) given in the greyscale caibration file (...the curves of a 3D lady escape my grasp ( for I don't use poser yet, maybe i should ;^_^ ) ...you could use a screenshot to retain the calibrated file's information, to keep it digital... ) I just hope it's understood, you will change up to 3 areas of the tones , with curves, in each of the four channels. (numbers veriate, but the the result will suit your cmyk needs)

OT - here's my first bald poser humanoid, *well it is a start* I might have to look at the manual .

• stands up to peek down * Well. There are some curves alright. It is fun, isn't it?

it will be more fun when try to pose with out twisting a body-part or camera 400 - even even 2 disorienting me.

I have to find my mouse every time I start Poser, it does not work great with a Wacom pen & pad. Maybe that is a useful hint?

the next installment of "show us your curves.." is in the nice figure, 36 - 26 - 36 (or something like that) the hint is fine, but I only have a mouse ATM. I just opened the program today , Version 3, can't / won't spend too much time in it this week