![]() ![]() ![]() Recognizing a Graphics File Graphics files contain digital photographs, line art, three-dimensional images, and scanned replicas of printed pictures. Copyrights determine the ownership of media, such as images downloaded from a Web site. Steganography involves hiding data, including images, in files. This chapter also explores tools for viewing graphics files you recover and discusses two computer graphics issues: steganography and copyrights. You learn how to identify and reconstruct graphics file fragments, analyze graphics file headers, and repair damaged file headers. This chapter begins with an overview of computer graphics and data compression, and then explains how to locate and recover graphics files based on information stored in file headers. To examine and recover graphics files, you need to understand the basics of computer graphics, including file characteristics, common file formats, and compression methods for reducing file size. Many computer forensics investigations involve graphics, especially those downloaded from the Web and circulated via e-mail. ![]() Describe how to identify unknown file formats.Explain how to locate and recover graphics files.Describe types of graphics file formats.Recovering Graphics Files After reading this chapter and completing the exercises, you will be able to: ![]()
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