1. Why it is advisable to use Level/Curve compared to Brightness/Contrast?
Level/curve able to be used to manage tone, contrast and the colour of
specific area or specific colour. Brightness/contrast only able to adjust
the brightness and the sharpness of the whole picture. Image only will
look real if we only adjust the tone/brightness of specific area instead
of change the brightness of whole image.
2. Figure 2A is a picture of model trucks and cars. It is desired to change
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?
When we have set the drop down box to “yellow” means we will
change everything in the image which is in yellow colour. The
car and the bulldozer are in yellow colour, when we change
yellow to green both of car and bulldozer will change to green
in the same time.
Original Image:
When drop down box was set to “ yellow” after the adjustment,
yellow colour in the image was changed to green.
When drop down box was set to “ blue” after the adjustment,
blue colour in the image was changed to purple.
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