This chapter is from the book
This chapter is from the book
This chapter is from the book
Adjusting Photos
The Adjust tool is the most complicated because it has many controls that are somewhat technical, such as Contrast, Saturation, and Temperature. Plus, each time you adjust one control, it can impact the appropriate setting of the other controls. Using the Adjust tool is a balancing act of sorts.
Click the Adjust button. The Adjust tool appears.
Drag the tool on the screen so that you can see it and the photo you are editing.
)
NOTE
Technicalities The properties that you can adjust are fairly technical and can be difficult to understand. Some, such as Contrast (which
is the amount of distinction between dark and light areas), aren’t too difficult to grasp, but others, such as Definition,
are harder to define (pun intended). 
TIP
Experiment The best way to see what impact changing a property has is to drag its slider all the way to the left and then slowly drag
it all the way to the right, while looking at the photo.
Use the sliders to change various properties of the image by moving them from the left to the right. As you move a slider,
you see its impact on the image. The relative amount of change is indicated by the position of the slider and the numeric
value at the right end of its bar.
To try to remove color cast (poor whites) from an image, click the Eyedropper button.
Point to the neutral gray or white and click the mouse button. iPhoto attempts to reset the colors accordingly.
)
TIP
Copying is Good If you find a set of adjustments that work well, click Copy. Move to a similar image and click Paste to apply those same adjustments.
NOTE
Try, Try, and Try Again The impact of adjusting the same property on different images can be unpredictable because the property’s significance can
be lesser or greater on different images. Using the Adjust tool well requires a lot of experimentation.