Photoshop CS4 introduced a new way to change parts of your image called On Image Controls. In a nutshell, they take the process of figuring out which sliders will affect certain areas of your photos and make it much simpler. Now, with CS4, you just open an image adjustment and click-and-drag on it â Photoshop takes care of the rest by adjusting the sliders that will affect the area of the image you clicked on.
