Need the source of a tutorial on contrast adjustments

[nfn13423]

I am missing the example photos, and need help to find the reference to this tutorial; thanks.

Text starts: Using simple masks in Photoshop for local adjustments.....

2nd paragraph: Among many plug-ins for Photoshop, we like the tonal contrast filter in Nik's Color Efex Pro 4....

3rd paragraph:  Notice that with the contrast properly set, the colors are rich and saturated....

EDIT [private information removed by moderator]

[MichelBParis]

Simple Google search:

The 5 Best Google Nik Color Efex Pro 4 Filters and How They Can Amplify Your Images

(I don't have the Nik tools).

[99jon]

I often use the Pro Contrast filter in Nik Collection. You can start by expanding the thumbnail previews on the left. After selecting a suitable starting point you can tweak with the sliders.

Video tutorial:

https://www.youtube.com/watch?v=BRc9J99FIcI