# \#ccm

**URL:** https://forum.opencv.org/tag/ccm/258.md

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## [ColorCorrectionModel CCM4x3 crashes use of weightsList](https://forum.opencv.org/t/colorcorrectionmodel-ccm4x3-crashes-use-of-weightslist/12504)

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**Author:** [@PeterG](https://forum.opencv.org/u/PeterG)\
**Replies:** 6\
**Last updated:** [March 27, 2023, 8:31am UTC](https://forum.opencv.org/t/colorcorrectionmodel-ccm4x3-crashes-use-of-weightslist/12504 "2023-03-27T08:31:54Z")

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I am running a python script using the ColorCorrectionModel. All fine, but… when I try to use the model.setWeightsList(w) function my code crashes, showing the error message: Error: "cv2.error: OpenCV(4.7.0) D:\\a\\opencv…

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## [ROS + OpenCV 4.5.2 Color correction model SIGSEGV](https://forum.opencv.org/t/ros-opencv-4-5-2-color-correction-model-sigsegv/6324)

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**Author:** [@Janphr](https://forum.opencv.org/u/Janphr)\
**Replies:** 0\
**Last updated:** [November 20, 2021, 2:09pm UTC](https://forum.opencv.org/t/ros-opencv-4-5-2-color-correction-model-sigsegv/6324 "2021-11-20T14:09:31Z")

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Hey, I’m trying to get this example to work inside a ROS node, but when I get to the line model1.run(); the process dies. If I set up the color correction in a separate project, it works fine. Any idea what might cause…

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## [ColorCorrectionModel issue](https://forum.opencv.org/t/colorcorrectionmodel-issue/9640)

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**Author:** [@borghe](https://forum.opencv.org/u/borghe)\
**Replies:** 3\
**Last updated:** [July 28, 2022, 9:54am UTC](https://forum.opencv.org/t/colorcorrectionmodel-issue/9640 "2022-07-28T09:54:59Z")

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Hi all. I’m trying to perform color correction on images with a SG140 color checker. I’m just replicating the tutorial on OpenCV (4.6.0) website that you can find here: OpenCV: Color Correction Model The color checker d…

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## [Unable to perform color correction from opencv tutorial](https://forum.opencv.org/t/unable-to-perform-color-correction-from-opencv-tutorial/2141)

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**Author:** [@gautam](https://forum.opencv.org/u/gautam)\
**Replies:** 1\
**Last updated:** [May 28, 2021, 7:39pm UTC](https://forum.opencv.org/t/unable-to-perform-color-correction-from-opencv-tutorial/2141 "2021-05-28T19:39:48Z")

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Hi all! I’m trying to use the example code in OpenCV: Color Correction Model but I want to do it in Python instead of C++. I see at least one other person with this issue: Converting Color Correction opencv module exa…