HDR tutorial result is different from the code running

Python
1

I study the HDR functions in OpenCV with the tutorial. And then, I try the same code with same parameters in pycharm and visual studio. However, the results are not same like the result shown in the tutorial. The following figure are the result run by my code.
Debevec:

hdr
hdr1280×960 113 KB

Robertson:
hdrr
hdrr1280×960 89 KB

Mertenes Fusion:
fusion
fusion1280×960 144 KB

Are there any mistakes in my application? Hope someone bring me some assistance.

2

I ran the code myself and can reproduce your results.

appears to be a bug/regression and you should submit a bug report on Issues · opencv/opencv · GitHub

3

Thanks to your replay. I will submit a bug report on GitHub. I really appreciate it.