Digitizing Study guides, Class notes & Summaries

How is topology generated in raster data? - Answer Topology is implicit because of the cartesian coordinate system. Vector is in tables. "3,2 is next to 4,2 because of the coordinate system" What general class of map projections is used to project an entire globe, why is this type best? - Answer Cylindrical because it has the least amount of distortion What is the most important factor in obtaining GIS data? - Answer the quality of the data How do you physically input data in...

Continuous Tone correct answers No break between colours Our eyes see in correct answers Continuous Tone Image capture correct answers refers to digitizing images Cameras and Scanners correct answers used for digitizing images Film/Transparencies correct answers Are continuous tone Four Categories of Digital Cameras correct answers Consumer Prosumer Professional Commercial Two Times Rule correct answers Two Pixels for every Printing Dot Converting RGB to CMYK correct answ...

How many symbols can be represented by four bits? a. 12 b. 16 c. 36 d. 256 - correct answer B PandA representation is what kind of system? a. decimal b. binary c. hexadecimal d. byte - correct answer B What was used to help structure the digitized Oxford English Dictionary? a. bytes b. sets c. ASCII d. tags - correct answer D This defines how characters relate to each other when they are compared. a. digitizing b. binary sequence c. collating sequence d. information repr...

Two common ways to digitize images for Graphic Communications correct answers 1. Digital Cameras 2. Scanners Digital Cameras can be categorized as: correct answers - Consumer: Low cost, point and shoot, limited settings, no RAW images, Limited Operation - Prosumer: Moderate cost, swappable lenses, more settings, raw images, more manual operation -Professional: expensive, Swappable lenses, advanced settings, RAW images, mostly manual operations - Commercial: Really expensive, swappable...

Why Digitize Images correct answers - we live in a continuous tone world - no breaks between colours - colours seamlessly blend into one another - this is how our eyes see Graphic Communications is not continuous tone, but includes: correct answers - Pixels - Tone - Bitmap Image Capture correct answers The digitizing of images for use in the graphic communications industry 2 common ways we digitize images for graphic communications correct answers 1. Digital Cameras 2. Scanners...

The dentist says that the image has too much contrast; she would like to see more gray values. What adjustment would you make? : Increase kVp. All of the following are true statements about film badges except: a. they should be worn at work only. b. if an assistant follows all safety precautions; exposure should be near zero. c. they should be worn when any form of x-ray is taken. d. the badge is usually worn for 3 to 4 weeks before returning it for reading. : c. they should be worn whe...

Image Formation, Projective Geometry, Image Enhancement Exam Questions and Answers High-pass Filter - Answer-Used to enhance high-frequency details in an image Low-pass filter - Answer-It smoothens the image by averaging pixel values High-pass filter - Answer-Emphasizes high-frequency components Band-pass filter - Answer-N/A Laplacian filter - Answer-Highlights intensity discontinuities Convolution - Answer-Differs from correlation by using the filter without rotation Sobel o...

Raster Image - Also called bitmap images, they are made of a grid of pixels. Bitmap images can represent subtle gradations and tones; typically photographs. When editing these images you edit groups of pixels rather than shapes as in vector images. Uses DOTS OF COLOR Pixelation - scaling a raster image well beyond its original size causes the pixels to stretch , which can result in image distortion and a jagged appearance Nearest Neighbor Interpolation - Photoshop Tools Panel/Toolbar ...

Two principles of operations: - Principle 1 of operations - Principle 2 of operations Principle 1 of operations: -The ultrasound machine operates and presents the information on the monitor. -There is a one-to-one correspondence between transmitting a pulse into the body and the echoes returning from that pulse and presenting it as a visible dot developing a scan line (one pulse at a time). Principle 1 of Operation: Repeating this ___________ times, would produce a single image...

Heads-up Digitizing (HD) - Answers-Creating features with a mouse directly on the computer screen by tracing the desired photo, map, or other data End points (HD) - Answers-Points where a line begins and ends Vertices (HD) - Answers-Points where a line changes direction or is interested by another line Edges (HD) - Answers-Segments between vertices Edit sketch (HD) - Answers-ArcMap Editor, the environment is called Task (HD) - Answers-The operation you carry out Target (HD) - A...