Error level analysis shows differing error levels throughout this image, strongly suggesting some form of digital manipulation. Areas to note are the lips and shirt, as well as the eyes. All are at significantly different error levels than their surroundings. Presumably, colours have been altered and areas brightened.

An inline lightbox alternative

TinEye is a reverse image search engine. You can submit an image to TinEye to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions. TinEye is the first image search engine on the web to use image identification technology rather than keywords, metadata or watermarks.

Thư viện javascript cho phép chuyển đổi ảnh thành dạng ASCII

Danh sách một số trình xem ảnh phổ biến cho Mac. Nói chung, với nhu cầu thông thường, Preview + Quick Look + Xee là đủ (Xee để xem file GIF, không hiểu tại sao Mac không có tính năng này)