WEEK 9 (REFLECTION)

1. Why do we need to set the file as pixel or inches? Is there any difference between these two?


ANSWER : We set pixel for viewing and inches for printing.

2. What happen if one set the dpi more than 72 dpi? Can your eyes see the differences?

ANSWER : We cannot see the difference when viewing from the monitor but it will show the difference if you print out the image.

3. What are the tools used for selection and its function?

ANSWER : Tools used for selection is called marque tools.There are 4 marque tools (rectangular, elliptical, single row and single column). the function of this tools is to select any part of the image.

4. How the use of glossy paper able to fool one's eyes?

ANSWER : The reflection of the glossy paper.

Hue/Saturation, Level, Curve

1. Why it is advisable to use Level / Curve compared to Brightness / Contrast?

ANSWER : Level is a lot faster than brightness and contrast, because everytime you adjust brightness you will have to readjust contrast and vice versa to get the range. With levels, you can set the darkest areas and lightest areas and then adjust midtone. Readjusting midtones does not require adjusting the black and white sliders, the way adjusting contrast or brightness would require going back and adjusting the other. Curves, are like graphic equalizers, and allow different weighting of different colour ranges. With curves, for example, you can brighten shadows without effecting midtones. That is why it is advisable to use level/curve rather than brightness / contrast.


2. Figure 2A is a picture of model trucks and cars. It is desired to change the color of the bulldozer from yellow to green. Using the Hue/Saturation adjustment seen in Figure 1, the Edit drop down box was changed to Yellows. Then the eyedropper tool, circled in red in Figure 1, was selected and clicked on the bulldozer only. The Hue slider was then moved to the right until the desired color was achieved. In this case, +62. However, as seen in Figure 2B, the car was also changed to green.

Why did the color of the car change when the eyedropper was only clicked on the bulldozer?

ANSWER : Color of the car is same with the color of bulldozer. So, when you apply eyedropper on bulldozer , it will automatically change the colour of the car.