To Remove Image from Favorites in Photos app Favorites Album. 1 Open the Photos app. 2 Click/tap on Albums at the top, and click/tap on your Favorites album. (see screenshot below) 3 Right click or press and hold on an image you want to remove, and click/tap on Remove from favorites. (see screenshot below) That's it, Shawn. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.