I have this feature on my i5 based PC.
You can read about it In the following article.
Search the article for:
"Adaptive contrast enhancement works as advertised, enabling HD 4000 to comfortably score the maximum possible points in that section of the HQV benchmark."
This is how it looks like in the Intel Graphics and Media Control Panel:
I wrote an article describing this feature (in Hebrew):
Thank you Sylvia,
According to Intel, Adaptive Contrast is part of Intel Clear Video HD and on the i3-4130.
Intel Clear Video HD:
- Total color control, along with adaptive contrast and skin-tone enhancements that create vivid, rich colors on the display
The Intel specifications page of the i3-4130: