A Color Story - The photo app to colourize your life
TinEye - Reverse Image Search to help find an image's source, duplicates or altered versions.
Brillar - Bring glitters, stars and sparkles to your videos and photos.
GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.
Prisma - Art filters using artificial intelligence to transform your photos into classic artwork.
Yandex.Images - search for images on the internet, search by image