To develop the image system for Big Eyes Bertha, a doll that captures digital photographs via its eyes, you've been recruited to design the image system. How many distinct shades of each hue can you express in each channel if you use an RGB (Red-Green-Blue) color scheme with 6 bits for each color channel (6 bits for Red, 6 bits for Green, and 6 bits for Blue)?

To develop the image system for Big Eyes Bertha, a doll that captures digital photographs via its eyes, you've been recruited to design the image system. How many distinct shades of each hue can you express in each channel if you use an RGB (Red-Green-Blue) color scheme with 6 bits for each color channel (6 bits for Red, 6 bits for Green, and 6 bits for Blue)?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter7: Input/output Technology

Section: Chapter Questions

Problem 5VE

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You have been hired to design the image system for Big Eyes Bertha, a doll that takes digital pictures through its eyes. If you use an RGB (Red-Green-Blue) color system, with 6 bits for each color channel (6 bits for Red, 6 bits for Green, and 6 bits for Blue), how many different shades of each color will you be able to represent in each channel - that is, how many shades of red can you have in the red channel, how many shades of green in the green channel, and how many shades of blue in the blue channel?
Suppose an RGB raster system is to be designed using an 8-inch x 10-inch screen with a resolution of 100 pixels per inch in each direction. If we want to store 12 bits/pixel in the frame buffer, how much storage (in bytes) do we need for the frame buffer?
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Given the 3-bit 4x4 pixels image f(x,y) below, rescale the range of pixel values of f(x,y) so that they can be represented by 2 bits. What is the resulting image?
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If you sat close enough to an old TV, you could see individual (R)ed, (G)reen and (B)lue (or RGB) “phosphors” that could represent just about any color you could imagine (using “additive color model”). When these three-color components are at their maximum values, the resulting color is white from a distance (which is amazing – look at your screen with a magnifying glass!). When all are off, the color results in black. If red and green are fully on, you’d get a shade of yellow; red and blue on would result in purple, and so on. For computers, each color component is usually represented by one byte (8 bits), and there are 256 different values (0-255) for each. To find the “inverse” of a color (like double-clicking your iFone® button), you subtract the RGB values from 255. The “luminance” (or brightness) of the color = (0.2126*R + 0.7152*G + 0.0722*B). For this program, you need to design (pseudocode) and implement (source code) a Color class that has R, G and B attributes (which can be…
As one aside, so as to make reading mail as painless as possible for those who still insist on using text-only mail readers, a MIME message that consists of regular text only can be encoded using 7-bit ASCII. There’s also a readable encoding for mostly ASCII data. Putting this all together, a message that contains some plain text, a JPEG image, and a PostScript to explain it.
Suppose a color monitor has a 1600x900 frame size and uses 8 bits for each of the three primary colors per pixel. What is the minimum size in bits of the frame buffer to store a frame? Enter only the final answer with no commas.
Assuming that a certain full-colour (24-bit per pixel) RGB raster system has a 512-by-512 frame buffer, how many distinct colour choices (intensity levels) would be available? How many different colours could be displayed at any one time?
If we use straight RGB value coding with 10 bits per primary color, how many colors are there for each pixel? There are several subfields in the topic of computer graphics.
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