News in CooRecorder 8.1

Last update: 11 March 2016

For new users: Selection of data mode made easy.

A common problem for new users of CooRecorder has been to select the correct data mode for their input. Even when "Sorted data" has been preselected, some users have selected a raw data mode or even the "Curve data" mode. After that setting, almost no tree ring measurement mechanism worked properly in CooRecorder.
To try overcome this problem for new users, the four data modes used within dendrochronology are now represented by four big icons which will make a new user better understand which mode to select for his/her measurements.

Easy switching between D- and DH-input mode

You can now quickly (by CTRL-Right-Click) switch between D and DH modes when setting ring border points.

Retrieving blue color data

Collect several data sets in one run

Color intensity measurements in CooRecorder 7.8.1 worked with only one "color intensity collector" (CI collector). That means that you could only use one set of parameters to describe where to collect your blue data, e.g. either from the dark side of latewood or from the light side of earlywood. If you wanted both you had to make a first run to collect latewood data and save it into a file and then set up the parameters to collect the earlywood data and then make a run to collect the data and save it into another file.

With CooRecorder 8.1 you can have several collectors and have one set up to collect latewood data, another to collect earlywood data and a third to collect Delta-blue data. And all these collectors can be applied in one and the same run so that you get three separate .wid-files each with its own type of blue data.

The Densitometer

The Densitometer gives you a way to better understand how e.g. blue latewood from the dark side is collected. You can also see how the color intensity is distributed over the blue color spectra.

Do you have incorrect blue channel calibration??

For calibration of scanners, IT8.7/2 calibration cards are used together with a datafile containing colorimetric data read from that card (or from a copy out of the same batch of cards). With the help of special software like e.g. Lasersoft's "Silverfast" a color calibration procedure can then be performed. We would expect that if we then scan that same IT8.7/2 calibration card again on that same scanner, then we should get an image that complies with the colorimetric data given for that card.
If the image read from the calibrated scanner was a proper copy of the IT8.7/2 calibration card then all points above should be lined up around a straight diagonal line. This is obviously not the case for the dark blue values in the lower left corner of the diagram. The diagram above represents a mechanism in CooRecorder 8.1 by which you can analyze the quality of your scanner calibration. CooRecorder also has a calibration mechanism to compensate for minor errors (like those shown above) when you read blue channel data.

Using CooRecorder for wood density measurements from an X-ray scanner image

You can now use CooRecorder to retrieve density information from X-ray scanner images.

How to copy your current settings from an old CooRecorder version to the new version 8.1

There is a mechanism in also old CooRecorder versions to display the path and name of the file where your current settings are saved.
By looking up that file from your new CooRecorder version, you can easily pick up your old settings and have them applied to the new version.

Problem with number of decimals to write in CooRecorder version 8.1 Important!!!

During initial installation, CooRecorder 8.1 dated January 26 2016 does not properly set up the number of decimals to write for saving dendro data in a .pos file. If you issue the command Settings/Other settings in CooRecorder 8.1 and you find that the "Number of decimals to write" is "0" as shown below, then you have this error! If so please read on!

A remedy is to

  1. save the enclosed crecord5COPY.par file somewhere in your computer. (Right-click the link and select "Save link as". See that you keep the .par file name extension when saving!)
  2. use the CooRecorder menu command Settings/Try to retrieve settings from an old CooRecorder version parameter file and open that crecord5COPY.par file you just saved.
  3. Exit CooRecorder to make the new settings saved and then restart CooRecorder again. The problem should now be gone!

Note: Those users who have (already) transfered their old settings from an old version of CooRecorder as described above in "How to copy your current settings..." do not have this problem.

11 March 2016/LÅL



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