Automated Profiling for Digi Negs

[donbga]

Until a lack of backward compatibility makes it obsolete, CS3 comes out and the user base shifts and he is forced to rewrite it that much sooner or someone takes his idea and sells it as better because it utilizes the CS2 API.

I guess the implication here is that the auto profiler can't work with CS because of inherent dependencies on CS2? Of course I assume that's not true. Maintaining different versions of the utility doesn't seem to be that big of a deal. That's one purpose of version control software.

Anyway my point still is, that having the largest possible audience would be a good thing for veting the profiler.

Don

[jd callow]

I'm sorry if my post sounded flippant. My assumption was that it wouldn't be a matter of version control but one of writing entirely different apps for different 'platforms' or APIs. I have no idea of what is required between the two versions and or what the next will bring and when.

I do know what its like to have to build for many environments and for only one.

[menglert]

I downloaded your script and printed the step tablet. First problem I noticed is you are using an uncommon font, therefore I had to click "yes" to use a default font for each new cell created (there are a lot of cells!). You may want to change to a more common font like "New Times Roman".

I noticed your profiling method is very much like another I've seen, but automated. Here is a link for the other method I was reading about (LINK).

Currently I have my supplies on order for printing Kallitypes, and hope to be practicing within a week. I'd be more than happy to share my results with you from using your script.

When I start I'll be using a Epson R800, so I hope I won't have any density problems like have been reported from others, but time will tell.

Thanks for the contribution to the process.

Regards,
Martin

[pierrotsc]

If i wish I had found out about that on friday. I did some B&W prints over the week-end. It may be a couple of weeks before I do some more but I'll gladly test your script. I currently have an awesome curve that works for my prints. I wonder if your script can improve it.
sincerely,
Pierre-Olivier

[Digidurst]

I've attached a Photoshop CS2 script that can perform automated profiling for digital contact negatives.

Install it in your CS2 Presets\Scripts directory, restart PS, and it will appear under the file menu as Automate->Scripts->ChartThrob

It can make a chart which you can print as a digital neg.
Print using your prefered process.
Then scan the result.
Run the script agan, analyzing the (cropped) scan.
The script will create a saveable curves layer.
Applying this saved curve to other images before making a digital neg should, if your wet process is consistent, deliver images of optimal tonal range.

This is certainly in beta, feedback would be most appreciated.

Thanks for taking the time to write/post this. I am looking forward to trying it as soon as i can. Yes, I will post my results as you requested.

[menglert]

I tried this some months back. After I would try to autoprofile the scan that I made I kept getting an error and wasn't able to work past that stage. Perhaps others will have better luck.

Regards,
Martin

[bjorke]

I tried this some months back. After I would try to autoprofile the scan that I made I kept getting an error and wasn't able to work past that stage. Perhaps others will have better luck.

Regards,
Martin

What was the error?

[menglert]

This was some months back when this was first posted, and honestly I don't remember. Sorry I couldn't be more help.

Regards,
Martin

[pierrotsc]

I'm ready to try it this week-end. When I use the script, it generates a picture 16 inchx16 inch at 72ppi. I normally print at 360ppi on my epson.
If i change the resolution, the print size is now 3.3 inchx3.3 inch.
that is kind of small to scan later on.
What should I use and do?
Thanks.
PO

[Jeremy]

I'm ready to try it this week-end. When I use the script, it generates a picture 16 inchx16 inch at 72ppi. I normally print at 360ppi on my epson.
If i change the resolution, the print size is now 3.3 inchx3.3 inch.
that is kind of small to scan later on.
What should I use and do?
Thanks.
PO

ditto.