Mike Chaney's Tech Corner
December 09, 2018, 04:56:58 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Feb 2013: Qimage Ultimate Challenges... have fun and explore features!
 
   Home   Help Search Login Register  

Professional Photo Printing for Windows
Print with
Qimage and see what you've been missing!
Pages: [1]
  Print  
Author Topic: weak blacks  (Read 9276 times)
tomc
Jr. Member
**
Posts: 52


View Profile
« on: December 16, 2014, 02:34:40 PM »

After making a profile for my Epson WF-7610 (4 pigment ink printer), the colors look good but the blacks are weak. Like the left end of the histogram stops well short of the left (0) edge.

How should I go about editing the profile to correct this?

I have Profile Prism v6.5 and have just renewed support in order to get the latest, although the order hasn't been processed yet.


Tom
Logged
tomc
Jr. Member
**
Posts: 52


View Profile
« Reply #1 on: December 17, 2014, 12:38:40 PM »

Using the latest Profile Prism and Vuescan instead of the Epson scan software I created a new profile and then adjusted the saturation up a bit and the brightness down some.

It is now better.  I'd say acceptable to most people. It suffers in comparison to my Epson 3880 and 7900 printers, but that is to be expected. At least I can run off a quick 4x6 for people without having to fire up my 3880 or 7900.

Tom
Logged
Fred A
Forum Superhero
*****
Posts: 4875



View Profile WWW Email
« Reply #2 on: December 18, 2014, 05:03:12 AM »

Quote
Using the latest Profile Prism and Vuescan instead of the Epson scan software I created a new profile and then adjusted the saturation up a bit and the brightness down some.

It is now better.  I'd say acceptable to most people. It suffers in comparison to my Epson 3880 and 7900 printers, but that is to be expected. At least I can run off a quick 4x6 for people without having to fire up my 3880 or 7900.

Hi Tom,
I have Profile Prism 8.43
You mentioned having a much older version.
I don't remember if your version has the Profile Editor.
Wait  for the new software, and then remake your profile.  Not only will the results be better, but you can tweak anything and everything with the Profile Editor.
Here's a paste from the web page.

Summary of editor functions

File Menu:

    Open Profile: When you first enter the editor, the profile referenced on the main window is opened automatically. If you'd like to open a different Profile Prism printer profile, click "File", "Open" and select a profile for editing.
    Save Modified Profile As: When you have finished making changes to make the right test image look like your print, click "File", "Save Modified Profile As" to save a new profile that contains the changes necessary to correct the errors you identified in the print.
    Open Prior Adjustments From: You may find that many of your papers for the same printer require very similar adjustments. When editing a new profile (say for a new paper you just started using), you may wish to load settings that you previously used on another profile to get you started. To do this, click "File", "Open Prior Adjustments From" and select an adjustment file for a previous profile that you edited.
    Open Test Image: Although Profile Prism loads a test image by default, you may wish to open your own test image if, for example, you are having trouble printing certain colors from a certain image. Use "File", "Open Test Image" to open a different test image to be displayed in the two image windows on the upper right of the editor screen.

Color Wheel:

    Use the color wheel to select colors that you wish to change.

Bias:

    Change the red, green, and/or blue bias for the selected color. It may take some practice to be able to identify what bias changes are required for certain visual effects. For example, if a red rose looks too magenta in print, you'd select the red dot at 12 o'clock on the color wheel and increase the blue slider to add some blue to the rose to make it look more magenta (like the print).

Brightness:

    Increase if your print is too bright for the selected color. Decrease if your print is too dark for the selected color.

Contrast:

    Increase if the contrast in your print is too high for the selected color. Decrease if the contrast in your print is too low for the selected color.

Saturation:

    Increase if the saturation in your print is too high for the selected color. Decrease if the saturation in your print is too low for the selected color.

Preview:

    After you make any change, you must click the "Preview" button to preview the changes on the right test image at the top of the window.


Go back button:

    Allows you to go back to the beginning of the current session (this session), the beginning of the last session (last session), or scratch (set all values to zero).

The "Since last preview" group and "Apply changes..." button:

Fred
Logged
Fred A
Forum Superhero
*****
Posts: 4875



View Profile WWW Email
« Reply #3 on: December 19, 2014, 05:46:16 AM »

Quote
Wait  for the new software, and then remake your profile.  Not only will the results be better, but you can tweak anything and everything with the Profile Editor.
Here's a paste from the web page.

Summary of editor functions
Tom, if you know all this, then just ignore. It might me helpful for someone else.

The editor on PP is brilliant, but takes some concentration to get used to.
It has a reversed scheme of adjusting, and unless you stay focused, you will do it backwards and get worse results.
The basic principal that you have to grasp is that you want to make your screen look like what you printed as a test.

So we start with a comfortable test image  (Fuji-cal, Profiletest-srgb2, Printer test file, Printerevaluation_v002 from the internet)
You made your profile, and printed one of these test images.... looks a bit undersaturated.
In the EDIT mode, you have a split screen;test image on the left and adjustable on the right.
When you first look, you see the split screen as identical. See image 69.

Now you look at your test print (on paper, not softproof), and seeing a lack of contrast and a lack of saturation when you compare,(SEE SNAP 070)  you adjust the appropriate sliders,
**Not to compensate by increasing the saturation and Contrast, but to desaturate until the Right side split screen looks like your print.

See 071
See the sliders have moved to make my screen look like my print.

The initial urge is to look at the flat print, and ADD contrast and saturation to make it match.
That is the brilliant reverse... just match your print.
If your monitor is calibrated... this will work like a charm.

Fred
Logged
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!