Is it possible to measure the luminance of some ROIs, without selecting any visual system model? I have no intrest in any specific visual system in particular, just want the luminance data from the photos.
Whenever I run the batch mspec analysis without model and adding human luminance channel, an exception window pops up with the following lines:
ImageJ 1.53k; Java 1.8.0_172 [64-bit]; Windows 10 10.0; 1546MB of 12245MB (12%)
java.lang.IllegalArgumentException: Channel out of range: 4
at ij.CompositeImage.getChannelLut(CompositeImage.java:455)
at ij.ImagePlus.setSlice(ImagePlus.java:1912)
at ij.gui.StackWindow.setSlice(StackWindow.java:316)
at ij.gui.StackWindow.showSlice(StackWindow.java:211)
at ij.plugin.Animator.startAnimation(Animator.java:208)
at ij.plugin.Animator.run(Animator.java:50)
at ij.IJ.runPlugIn(IJ.java:210)
at ij.Executer.runCommand(Executer.java:151)
at ij.Executer.run(Executer.java:69)
at java.lang.Thread.run(Thread.java:748)
The same seems to happen if I try with any visual system model. I need help, please
Absolutely, you can do standard analyses with camera normalised reflectance images.
however, the batch mspec tool doens’t need that extra luminance channel added. that’s only the QCPA framework. The batch mspec script should work on plain reflectance images.