Screen tones and halftones, which are essentially the same, are used to simulate shades of gray in bitmap, or black and white, images. You can also use them to create special effects, such as the ...

Ask a group of Photoshop users for the best method to convert a color image to grayscale and you’re likely to get a debate as long-winded as the QuarkXPress vs. Adobe InDesign argument. Heck, many of ...