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Display Calibration Tools - Lightspace Enhancement

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Author mike_n
#1 | Posted: 19 Feb 2014 11:03 | Edited by: mike_n 
Hi fellow Lightspace users,

happy to share here that we have now enabled public access to http://DisplayCalibrationTools.com/

If you are a Lightspace lover as well and you currently enjoy the fastest and most accurate solution out there, well then your copy of Lightspace just got a tiny bit better

Our site offers various profiling / calibration tools, including dedicated Lightspace tools that enhance your profiling/calibration workflow.

Please post questions or requests in this thread.

Here's a quick overview of the current tools:


This is a dedicated Lightspace tool, you're gonna like this.

This tool allows you to fully verify/validate any given Lightspace profile - Quick Profiles, full Display Characterizations (17^3, 21^3 etc) or Custom Profiles. You will get a full delta E report of every single profile point. You can validate against dE 1976 Luv, dE 1976 Lab, dE 1994 and dE 2000. Choose which one or validate against all 4.

Currently supported color targets are Rec 709 (with any Gamma you specify, not just 2.2), BT.1886, sRGB, DCI P3 and DCI XYZ.

The tool output various delta E reports, such as: profile points grouped by color (W|R|G|B|C|M|Y|Other), all profile points grouped by Brightness and all profile points grouped by Saturation, and a delta E distribution overview of all profile points averaged.

The tool then provides various graphs, most of them are the corresponding graphs for the delta E reports mentioned above.

The report then displays a dE graph of all Greyscale points and a RGB balance graph.

It also displays 2 different gamma graphs.

At the bottom of the report you will find an interface to create additional graphs, u can create graphs for each color group (R|G|B|C|M|Y) and group profile points either by Brightness or Saturation.

This tool in combination with the Custom Color Patch Sequence Generator (see below) now gives you full control over what you profile and gives you detailed data about the current calibration of your display. Not to mention that Lighstspace has superior probe handling - speed and probe accuracy / transparency are a concern in other solutions.

See an example screenshot of a profile report in one of the posts below.


Control what you are profiling !

This tool allows you to create custom color patch sequences that can be used for profiling in any solution that allows the import of custom patch sets. Lightspace started to support the import of custom patch sets a couple of months ago. This tool saves the color patch sequence to .csv files which can be directly imported into Lightspace.

(1) Generated Grid Sequence section

Up to 50^3 profiles, current LS limit is 21^3 so now you can go way beyond that.

Add a custom greyscale up to 100 points.

Create linear grid sequences or apply a (uniform) weight / (uniform) reverse weight or use original LS grid sequences (which have a custom weight)

There are various sort options that allow you to arrange the order of the patches - this is very important for Plasma displays and their inherent ABL issues.

This tool gives you the ability to remove patches from the patch set, this is very useful for probes which struggle below a certain brightnes threshold. Not only do u save time not measuring these patches, but you also do not contaminate your profile with bad probe data, IF the probe was actually able to read a point.

The tool outputs a Hue graph, Saturation graph and Brightness graph giving you a visual overview of the color patch sequence.

The visual appearance of the graphs can be adjusted so that u can look at the same data in multiple ways - this reveals all characteristics of a given patch set.

Below each graph, u get a full list of all hues / saturation levels / brightness level that occur in the patch set and the number of profile points for each. Saturation and Brightness points are also grouped into 0-25%, 25-75% & 75-100% so that u see where the bulk/meat of the profiling points are located.

(2) Manual Grid Sequence section

The same options as the Generated Grid Sequence section with the difference that instead of generating a grid sequence, u can manually define the grid sequence that will be used to create the 3D patch set. This gives even more control as u can now apply weight to specific patches only or shift weight in the grid sequence as you like.

(3) Custom Patch Set section

This section gives you full control over creating a patch sequence that is not grid based - this section is currently under revision.

See an example screenshot of a Generated Grid Sequence created via the CPSG in one of the posts below.


Know what you are profiling !

This section allows you to view color patch sets that you might have created via the Custom Color Patch Sequence Generator, received from peers or want to evaluate in general. Currently supported file types are .csv and .ti1/.ti3. Lightspace uses .csv, Argyll uses .ti1/.ti3.

The section will output the same detailed data and graphs as the Custom Color Patch Sequence Generator.


Another dedicated Lightspace tool.

As you might know, Lightspace supports custom color spaces and recently has added parametric gamma control, which means that you can create a custom color space with a custom gamut and complete custom gamma - you can control / modify / adjust the gamma at up to 100 brightness points. This is a a fantastic help for displays and/or PJs that struggle outputting a constant gamma or your desired gamma.

This tool enables you to create custom color spaces to be used within Lightspace with fully custom gamut and gamma - it visualizes the gamma adjustments that you make in 2 separate gamma graphs so that you can easily coordinate and pinpoint your gamma adjustments.

See an example screenshot of a Custom Color Space in one of the posts below.


This tool allows you to analyze and optionally compare eeColor 3D LUT's. You can define how many RGBCMY points (4 | 10 | 21) will be analyzed for a given LUT and the tool will return statistics about the RGB corrections that the LUT introduces for these points. These statistics can be used to compare multiple calibration LUT's (created for the same display) against each other, and to determine which LUT triggers less processing inside the eeColor box.


Another dedicated Lightspace tool. This tool allows you to create and/or edit Lightsapce meter profiles.

If you have any questions, please post here in this thread.

Happy calibrating !

Author mike_n
#2 | Posted: 19 Feb 2014 11:04 | Edited by: mike_n 
Here's an example image of a profile report created by the Lightspace Profile Reporter. This report is for a LS QP w/ 141 points. As stated in the opening post, this tool validates every single profile point.

Profile report from the Lightspace Profile Reporter tool

Author mike_n
#3 | Posted: 19 Feb 2014 11:06 | Edited by: mike_n 
Example screenshot of the data and graphs displayed by the Custom Color Patch Sequence Generator (and Color Patch Sequence Viewer). As you can see on the screenshot, you can display the graph data in various ways, the Hue, Saturation and Brightness graph all have a different graph type.

Custom Color Patch Sequence Generator

Author Steve

#4 | Posted: 19 Feb 2014 11:09 
I have to say we did help Mike with this site (just a bit) and fully endorse what he has done!

It's a great resource for those looking to get the most out of their calibration!

Steve Shaw
Mob Boss at Light Illusion

Author mike_n
#5 | Posted: 19 Feb 2014 11:09 | Edited by: mike_n 
Here's an example image of The Lightspace Custom Color Space Creator tool and the custom gamma control, that allows up to 100 gamma adjustment points.

Lightspace Custom Color Space Creator

Author mike_n
#6 | Posted: 19 Feb 2014 11:31 
I have to say we did help Mike with this site (just a bit) and fully endorse what he has done!

yes, the incredible Steve provided (as always) full support !

Thanks again !!!

Author njfoses
#7 | Posted: 20 Feb 2014 03:58 
How about allowing LS users free premium access?

Author mike_n
#8 | Posted: 20 Feb 2014 04:09 

I wish !

unfortunately software development costs money - but the current Premium donation listed is an introductory promotion.

Let me know if you got any questions regarding any of the tools, there are also more tools on the way...

- Mike

Author alex_t
#9 | Posted: 23 Feb 2014 08:22 | Edited by: alex_t 
Hi Mike

Thank you for these tools.

Registered and payment done

Author mike_n
#10 | Posted: 23 Feb 2014 08:29 

thank you, let me know if you have any questions !

We will release the Custom Patch Set section (the 3rd option in the Custom Color Patch Sequence Generator) very soon.

We will also release a new tool soon so that you can edit/modify patch sets that you have downloaded from the internet or received from peers, e.g. the latest custom patch sets released by Light Illusion.

- Mike

Author noodles73
#11 | Posted: 23 Feb 2014 10:36 
but the current Premium donation listed is an introductory promotion

Hi Mike,

when does this promotion end (date)?

Author mike_n
#12 | Posted: 23 Feb 2014 10:44 

no date yet, I'll announce it once we finish adding the current expansions: CPS in the CPSG and the CPSE (Custom Patch Set Editor - as per your request !!!)

- Mike

Author mike_n
#13 | Posted: 7 Mar 2014 11:24 | Edited by: mike_n 
Hi guys,

we have added a new tool and some updates on DisplayCalibrationTools.com

1) New Tools

The Custom Patch Set section in the Custom Color Patch Sequence Generator is now fully working. You can freely create any patch sequence using HSB controls without being bound to using grid sequences.

This section also includes predefined patch sets, which are very useful for calibration validation:

Color Checker Classic
Color Checker SG
SG Flesh Tones
Luschan Skin Tones

Please read the instructions in this tool's section, you will see you can do quite a lot with this tool.

2) Updates

The Lightspace Profile Reporter and the Lightspace Custom Color Space Creator have been updated. In the Lightspace Profile Reporter, below the second (log-log) gamma graph there is now an option to "Copy Gamma Compensation Offsets For Custom Color Space Creator".

If you click this link, the tool will calculate and copy Gamma compensation offsets for all Gamma points that deviate from the target Gamma. If you then go to the Lightspace Custom Color Space Creator and create a new custom color space (e.g. use Rec 709 G2.2 preset), you will see that a button labeled "Paste Gamma Compensation Data from Profile" appears now. If you click this button, all Gamma adjustment points will be created for you.

Simply click UPDATE GRAPH to see the adjustment points. Save the custom color space and use it as a SOURCE in Lightspace in the Convert Color Space section. This will improve the Gamma the LUT produces.

There is now also an alternative membership option called "CPS" for a reduced price, which gives access to Custom Color Patch Sequence Generator, Color Patch Sequence Viewer and Color Patch Sequence Editor (currently being revised) only.

- Mike

Author mike_n
#14 | Posted: 6 Apr 2014 10:19 | Edited by: mike_n 
Hi guys,

new updates have been posted to DisplayCalibrationTools.com that include updates to existing tools, new free tools and new display calibration guides & workflows.

(1) Updates To Existing Tools

The Lightspace Profile Reporter has received the following updates:

· added Advanced Options interface
· added option to display CIE data for every profile point: XYZ, Yxy, Yuv
· added option to choose Reference White Point used in color conversions such as Display White Point, Color Target White Point, A, B, C, D50, D55, D65, D75, DCI P3, DCI XYZ, E, F2, F7, F11
· added option to choose the Chromatic Adaptation Method (CAT) such as Bradford, von Kries etc
· added option to enable a delta E filter that allows you to filter profile points above or below a delta E threshold
· added additional helper to copy / add relative gamma offsets to Lightspace Custom Color Space Creator

The Lightspace Custom Color Space Creator has received the following updates:
· improved accuracy, stimuli values allow float values now
· added Advanced Options for gamma adjustment points
· added helper to paste / add relative gamma offsets (copied from Lightspace Profile Reporter) to existing gamma adjustment points

(2) New Free Tools

The free Meter Profile Comparison tool allows you to compare an active meter profile against a reference meter profile. The comparison overview includes xyY, XYZ, Yuv stats as well as luminance difference and delta E results in dE 1976 Luv, dE 1976 Lab, dE 1994 and dE 2000.

The free Meter Distance & Pattern Size Calculator tool allows you to calculate the pattern size of a rectangular patch on screen and then use the dimensions to calculate the maximum meter distance for colorimeter and spectrometer.

(3) New Display Calibration Guides & Workflows

We have added a new section that contains Display Calibration Guides & Workflows. Two calibration guides were added:

· Eizo CG275W Calibration Guide Using Lightspace And ColorNavigator
· Panasonic 65VT60 3D LUT Calibration Using Lightspace & eeColor

- Mike

Author Citation4444
#15 | Posted: 9 Apr 2014 15:27 
Thank you Mike for these wonderful tools! I especially like the Lightspace Custom Color Space Creator. It made it possible for me to duplicate my favorite preset Gamma of my projector while getting the benefits of the 3D LUT from LS. I have also created several custom color patch sequences that allow me to concentrate on the weak areas of my pj (from hue angle 300 to 60) while still adequately covering the whole cube. And, I have only scratched the surface of what these tools, along with LightSpace, provide us. I would advise any LS user to suck it up and pay the donation fee while it's still at the introductory fee.


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