My image has a weird color cast or haze, possibly the result of an incorrect white balance setting. How do I fix it?
There are many techniques for doing this, some of which I hope to cover in more detail at a later date. For now, keep in mind that most intermediate to advanced image editing programs have some kind of “auto levels” or “level correct” feature built in. These will often do a decent job of guessing what the correct color and contrast should be. Some programs, shuch as Photoshop Elements, have a specific tool that allows you to do after-the-fact white balance setting by click on neutral objects in the image.