Join Richard Harrington for an in-depth discussion in this video Understanding the histogram, part of Enhancing Photos with iPhoto.
- View Offline
iPhoto offers a useful tool, so you can measure the exposure in your image.…Remember, exposure is how much light is coming into the camera, in many ways, and…this will show you the dark and the bright areas of an image.…Being able to read the histogram, that particular scope, is very useful.…With the picture open, if I go into Edit mode, and click Adjust, you'll see that…we have a histogram here.…In this particular case, it's showing that on the left are the shadowy areas,…and on the right are the bright areas.…
You're also seeing individual components of color being represented: the…red, green, and blue.…With light, we use the RGB color space.…Essentially speaking, if you remember back to high school science class, or…maybe even preschool, for that matter, when you split white light, it becomes a rainbow; ROYGBIV.…Well, red, green, blue is the easy way that computers use to split light,…and when we make pixels, and we combine them, using red, green, and blue pixels, we…get different colors to make a digital image.…
This course was created and produced by Rich Harrington. lynda.com is honored to host this content in our library.
- Cropping for better composition
- Rotating an image
- Making a levels adjustment
- Adjusting shadows or highlights
- Increasing saturation
- Converting to black and white
- Creating sepia-tone effects
- Using the Retouch Brush
- Sharpening photos
- Adding borders
- Copying and pasting adjustments