If you mail me a test print I should be able to measure it with my reflection densitometer - haven't used it in a while but if I dust it off it might just work. A camera light meter is not really a very accurate way to measure a target.
My address is:
Jonathan Sachs
7 Gregory Rd.
Lyme, NH 03768
Search found 4220 matches
- June 8th, 2009, 1:31 pm
- Forum: Picture Window Support
- Topic: Gamma converting monitor ICC profile to printer's profile
- Replies: 9
- Views: 8329
- June 7th, 2009, 12:15 pm
- Forum: Picture Window Support
- Topic: Gamma converting monitor ICC profile to printer's profile
- Replies: 9
- Views: 8329
Re: Gamma converting monitor ICC profile to printer's profile
If you purchase an inexpensive Kodak Q-13 step wedge and print the simulated version you can download from our web site, you should be able to compare them, but this will not take into effect differing DMAX and DMIN values.
- June 7th, 2009, 11:47 am
- Forum: Picture Window Support
- Topic: Gamma converting monitor ICC profile to printer's profile
- Replies: 9
- Views: 8329
Re: Gamma converting monitor ICC profile to printer's profile
You can't determine this from the profile - it depends on the printer and the printer driver as well as the profile since they all work together as a system. The only way to determine the gamma is to print a test chart and read it with a densitometer.
- June 7th, 2009, 9:51 am
- Forum: Picture Window Support
- Topic: Gamma converting monitor ICC profile to printer's profile
- Replies: 9
- Views: 8329
Re: Gamma converting monitor ICC profile to printer's profile
First the TRC flags in a monitor profile may either be a simple gamma value or a LUT (TRC stands for tone reproduction curve). sRGB actually uses a table because it treats the first few values different from a standard gamma curve although you would be hard-pressed to notice the difference. Printer ...
- June 6th, 2009, 3:08 am
- Forum: Picture Window Support
- Topic: 3/2 Tones and Contrast and Brightness
- Replies: 1
- Views: 2783
Re: 3/2 Tones and Contrast and Brightness
No, the control points are customized to the tone ranges. Increasing the contrast of the highlights does necessarily decreased their average brightness however since white is fixed; similarly increasing contrast for shadows lightens them on average.
- June 2nd, 2009, 9:53 pm
- Forum: Picture Window Support
- Topic: Additional Software in addition to PWP
- Replies: 10
- Views: 10868
Re: Additional Software in addition to PWP
I have not used Photomatix, but the new Stack Images command is designed to automate the process of combining bracket exposures to produce a high dynamic range image. There is a white paper that describes this process in detail.
http://ftp2.bmtmicro.com/dlc/Stack_Images.pdf
http://ftp2.bmtmicro.com/dlc/Stack_Images.pdf
- June 2nd, 2009, 6:21 pm
- Forum: Picture Window Support
- Topic: Vibrancy
- Replies: 14
- Views: 13415
Re: Vibrancy
There is no vibrancy feature in PWP. Vibrancy is not a technical term - what most people seem to mean is some combination of increased saturation and contrast.
- June 2nd, 2009, 4:54 pm
- Forum: Picture Window Support
- Topic: Print color temperatur change since PWP 5.0
- Replies: 1
- Views: 2937
Re: Print color temperatur change since PWP 5.0
Different color engine? Different handling of profiles on opening files? Different monitor profile?
Nothing has changed in the program that I can think of that would cause what you are seeing if the settings are actually all the same.
Nothing has changed in the program that I can think of that would cause what you are seeing if the settings are actually all the same.
- June 2nd, 2009, 8:23 am
- Forum: Picture Window Support
- Topic: Additional Software in addition to PWP
- Replies: 10
- Views: 10868
Re: Additional Software in addition to PWP
To get a good stitch you need to adjust the goemetry of the images - which depends on the lens focal lengths, remove barrel or pincushion distortion, adjust for light falloff, and tweak the registration.
- June 1st, 2009, 7:24 pm
- Forum: Picture Window Support
- Topic: Additional Software in addition to PWP
- Replies: 10
- Views: 10868
Re: Additional Software in addition to PWP
Panoramic stitching software is often more convenient to use than PWP for combining multiple photos into one. This is a complex, specialized function that is best done with specialized software.