3. A raw (uncompressed) digital image file is composed of color information for

Question

3. A raw (uncompressed) digital image file is composed of color information for each pixel that makes up the image file. In RGB (i.e. red, green, blue) coding scheme, each pixel has a certain resolution for three colors: red, green and blue. Different intensity values (expressed in the bit resolution) for each color, when blended together, create the color variations we see in images Answer the following questions: 1. Calculate how many different colors a pixel can represent for a 16-bit color scheme. 16-bit scheme uses 16-bit resolution for each of the three colors RGB. This was a common coloring scheme in the 90s. 16-bit 2 If an uncompressed image file has 1280 x 1024 pixel resolution and is encoded by using a resolution RGB coding scheme, what would be the resulting image size in MB (megabytes)?

Explanation / Answer

1.)

According to the question,

The given system has 16bit color scheme.

So, each of this 16 bit can either be 0 or 1 i.e 2 values for each bit.

Thus, there are in total 216 different combinations for this scheme.

thus, a total of 216 colors i.e 65,536 colors will can be displayed by each pixel.

2.)

According to this question,

Number of pixels on the screen= 1028*1024=1,052,672

Now each pixel is of 16 bit,

So size of image of a 1028*1024 pixel = Number of pixels * Size of one pixel

= 1,052,672*(16)

=16,842,752 bits

=2,105,344 bytes {1 byte=8bits

= 2056 Kilobyte(kb) {1Kb=1024bytes

=2.0078 Mb = 2Mb (approx) {1Mb =1024 Kb

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