Google image search

[seoanalytics]

How does google decide which image show up in the image search section ?

Is is based on the alt tag of the image or is google able to detect what is image is about using neural nets ?

If it is using neural nets are the images you put on your website taken into account to rank a page ?

Let's say I do walking tours in Italy and put a picture of the leaning tower of pisa as a top image while I be penalised because even though the picture is in italy, you don't see anyone walking ?

Thank you,

[Libra_Photographic]

The Alt tag of the image is extremely important and a good description never hurts. As long as your image is relevant to the page like the example you have given, relevant to Italian walking tours it can't harm you in the slightest.

Neural nets aren't something to get worried about just yet in my opinion.

[seoanalytics]

I agree with alt tags but believe google combines that with neural nets.

Thank you,