Reference no: EM13348727

QUESTION 1

a) 1. What does resolution mean?

2. How is resolution connected to ppi and dpi units?

b) What is the purpose of Clone stamp tool or Rubber stamp tool? Your answer should include how a sampling is done

c)Provide two operations that can be done with the crop tool

d) How does the sponge, dodge and burn tool affect an image?

e) 1. How does the magic wand tool determine which areas of an image to select?

2. How does the tolerance setting of the magic wand affect the selection?

f) Which selection tools can be used to draw straight lines?

g) Explain the purpose of saving selections?

QUESTION 2

Adobe Photoshop offers the possibility of working with layers and masks

a) What is the advantage of using layers?

b) After working on a project containing several layers, you want to minimize the file size of the resulting document. Which steps would you take

c)How do channels differ from layers?

d)当使用Photoshop,解释如何绘画black, white and gray in a channel affects an image. It is common for web designers to design a template on Adobe Photoshop, Illustrator or Fireworks for validation purposes. The approved template is then converted into a Web template via a series of procedures and image optimization is carried out.

op e)是什么形象timization and how do you optimize images for the web?

f) Explain the difference between the RGB and CMYK color models