This pointer is called unconditionally in BarcodeImpl::initDecode assuming the size of the image is outside the specified bounds. This seems to not cause problems on optimized builds, I assume because the optimizer sees through the processImageScale call to see that it can be reduced to a resize call. Leaving it as is relies on undefined behavior.

This was the least invasive change I could make, however, it might be worthwhile to pull up the logic for a resize so that a SuperScale does not need to be allocated, which seems to be the most common case.

Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

• I agree to contribute to the project under Apache 2 License.
• To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
• The PR is proposed to the proper branch
• There is a reference to the original bug report and related work
• There is accuracy test, performance test and test data in opencv_extra repository, if applicable
  Patch to opencv_extra has the same branch name.
• The feature is well documented and sample code can be built with the project CMake