Explain what a color palette is and why it is significant in the storage of images.

What will be an ideal response?


The 24-bit color-encoding scheme is often referred to as True Color, and it provides an enormous range of shades and an extremely accurate color image reproduction. However, representing 16+ million colors requires a huge amount of memory space, and some image representation techniques reduce that value by using what is called a color palette. While theoretically supporting 16+ million different colors, they only allow you to use 256 (or some other small number) at any one time, just as a painter may have a lot of colors in his or her studio but puts only a few on the palette at a time. With a palette size of 256, we can encode each pixel using only 8 bits rather than 24, because 28= 256, thus reducing storage space demands by almost 67%. Each of these 256 values does not represent an explicit RGB color value but rather an index into a palette, or a color table. This index specifies which color on the palette is to be used to draw this pixel. This is the technique used, for example, in the Graphics Interchange Format (GIF), which uses a palette that can hold as few as 2 colors or as many as 256.

Computer Science & Information Technology

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The _________ operator reclaims memory previously allocated by new.

Fill in the blank(s) with the appropriate word(s).

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Outlook shows completed tasks by including a check mark in the task box and striking through text.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

Describe with examples why the approach you take for a forensics case depends largely on the specific type of case you’re investigating.

What will be an ideal response?

Computer Science & Information Technology

The ____________ object stores an entire relational table like structure. More than one table, plus relationships and constraints on the database, can be stored with the ____________ object. The ____________ is considered a memory-resident representation of the data.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology