GCM 111 Review Questions 2024 (with Complete Solutions)

Why do we need to digitize images for graphic communications? correct answers We live and see in a continuous tone world: No break between colours Colours seamlessly blend together How our eyes see; analogous, continuous tone world Graphic design isn't continuous tone; it's made of pixels, dots and bitmap. There's added fake colours and added dots to make people believe what they are seeing is analogus. Dots consist of 4 colours CMYK. Like pointillism with dots. Add white to see lighter version of colour. Have scanners become obsolete because of digital cameras? correct answers No, they are still in use but are used less often (Ex: Paintings/ Art) They often scan paintings and various forms of original art When comparing features to cost, which camera type discussed in class would offer the best value for money when choosing an everyday camera for capturing images for graphic communications? correct answers Prosumer: offers high quality and manual functions but still under $1000 for everyday use List the graphic communications of a "good" digital image? correct answers Depending on the end use, you could consider the following: Screen VS print Large VS small Close up or far away Colour VS Greyscale An 8"x 10" image is to be printed at 4" x 5" at a linescreen of 133. What is the minimum resolution this image can be to be print correctly? correct answers Resolution = 2 x LPI x SF Where: LPI = Linescreen SF = Scaling Factor (reproduction size/original size) SF(width) = 4/8 = 0.5 SF(height) = 5/10 = 0.5 If the SF's are different, go with the larger value. Since there is no difference in value, the SF is ½ or 0.5 Resolution = 2 x 133 x ½ = 133ppi What is the correlation between image size and resolution when scaling images? correct answers -when size increases, resolution decreases (less pixels per inch) -when size decreases, resolution increases (more pixels per inch) The resolution of a digital image should be twice the line screen that is printed at. This ensures that the image will look proper when printed.