Editing white balance & color transformation parameters - Node not existing (file 'genicam_wrap.cpp', line 16138) error

[frankbrewer]

Describe what you want to implement and what the issue & the steps to reproduce it are:

Hi,

I am trying to change white balance (https://docs.baslerweb.com/balance-white) and color transformation parameters (https://docs.baslerweb.com/color-transformation#how-it-works) of my Basler ace L camera using pypylon. But I am getting the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/frankbrewer/anaconda3/envs/pylon/lib/python3.12/site-packages/pypylon/pylon.py", line 4400, in __getattr__
    return self.GetNodeMap().GetNode(attribute)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/frankbrewer/anaconda3/envs/pylon/lib/python3.12/site-packages/pypylon/genicam.py", line 1360, in GetNode
    return _genicam.INodeMap_GetNode(self, Name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_genicam.LogicalErrorException: Node not existing (file 'genicam_wrap.cpp', line 16138)

Here is what I am doing: (throws error directly after trying to set red channel intensity)

from pypylon import pylon

tlf = pylon.TlFactory.GetInstance()
camera = pylon.InstantCamera(tlf.CreateFirstDevice())

camera.Open()

# enable software trigger
camera.TriggerSelector.Value = "FrameStart"
camera.TriggerSource.Value = "Software"
camera.TriggerMode.Value = "On"

# Set the red intensity
camera.BalanceRatioSelector.Value = "Red"
camera.BalanceRatio.Value = 310


# Select position Gain00 in the matrix
camera.ColorTransformationValueSelector.Value = "Gain00"
# Enter a floating point value for the selected position
camera.ColorTransformationValue.Value = 0.810

Could you help me with this?

Is your camera operational in Basler pylon viewer on your platform

Yes

Hardware setup & camera model(s) used

PC X86_64

Runtime information:

python: 3.12.2 | packaged by conda-forge | (main, Feb 16 2024, 20:50:58) [GCC 12.3.0]
platform: linux/x86_64/6.8.0-40-generic
pypylon: 4.0.0 / 8.0.0.10

[frankbrewer]

I noticed that BalanceRatioRaw.Value should be used instead of BalanceRatio.Value, but I still do not have an idea about ColorTransformationValueSelector.Value

[HighImp]

Hi, according to the docu, your code should work. It seems you copy the samples? Can you please tell me your camera model and the FW-Version? Also, just out of curiosity: Can you tell me why and how do you want to change the TransformationValues? Did you perform your own color calibration? Best regards!