Original Resolution: 576x1024 Reverse Image Search By Hostingchecker You can search by image to find related photos from websites over the internet. 1353x723 - A way (preferably in c#) to upload thousands of images to google images, and replace each with a higher resolution if google finds higher resolution for that pic officially, you need to use the google custom search api, which allows limited number of searches for free, and has fees above that.
Original Resolution: 1353x723 How To Use Google Reverse Image Search Reverse image search is already available in atleast one of the other screenshot tools that i have used earlier (lightshot) so it should be possible to include it here too. 1004x463 - Google images also detects the subject of your photo and brings up other websites related to, for example, tuxedo cats.
Original Resolution: 1004x463 How To Do A Reverse Image Search From Your Phone Pcmag Upload a photo from your desktop to google pictures and it'll show you most related images used on different websites and also it provides different sizes of the same photo almost instantly.