Author, title, comments, etc. aren't really properties of "Images" - images are just pixel data that you can display. If you need to do something like this for an application you're writing, you'd need to make a class to associate these attributes with an image - something like -
You may also be asking about EXIF data - embedded information in JPEG files - though this is mostly just a timestamp and information about the digital camera that took the picture... not anything like title and comments. There are some libraries that can access this information from JPEG files though - google - "EXIF Java"
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