MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When you carve a graphics file, recovering the image depends on which of the following skills?
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Recovering the image from a tape backup
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Recognizing the pattern of the data content
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Recognizing the pattern of the file header content
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Recognizing the pattern of a corrupt file
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Explanation:
Detailed explanation-1: -To identify an unknown graphics file format you need to examine a copy of the unknown file with a hexadecimal editor to find the hex code for the first several bytes of the file. When viewing a file header, you need to include hexadecimal information to view the image.
Detailed explanation-2: -Lossy data compression uses an algorithm that allows viewing the graphics file without losing any portion of the data.
Detailed explanation-3: -A graphics program creates and saves one of three types of graphics files: bitmap, vector, and metafile. Bitmap images are collections of dots, or pixels, that form an image. Vector graphics are mathematical instructions that define lines, curves, text, and geometric shapes.
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