Why neither the gamma out nor the tone-map looks like the DNG pic？

[JuZiSYJ]

The output of the pipeline should look like the DNG pic directly shown
However，the output of gamma or the tone-map look a little different？

[AbdoKamel]

It is not necessary to get exactly the same sRGB images. This issue happens because different software or ISPs may render the images differently. For example, a different tone map could be applied.