This workshop is designed to expand on the concepts introduced in the Photoshop Introduction workshop by exploring more complex techniques along with some useful tips, tricks and features.

Color Correction
Photoshop allows you to easily correct problems in color quality and tonal range created during the original photography or during the image’s scan. You can also correct problems in composition and sharpen the overall focus of the image. Retouching techniques vary greatly depending on how the image will be used. There is also much to be understood about image resolution. For more information about image resolution you should refer to the Photoshop manual or attend the Academic Computing Services workshop Graphics Formats and Scanning.

Color correction tools
All Adobe Photoshop color correction tools work basically the same way: by mapping existing ranges of pixel values to new ranges of pixel values. The difference between the tools is the amount of control you have.
For example, the Brightness/Contrast command (found in the Image>Adjust menu) makes the same adjustment to every pixel in the selection or image. Therefore, if you increase the brightness value by 30, 30 is added to the brightness value of every pixel. For more specific control of that, however, Photoshop provides the Levels menu that allows precise adjustment using the variables of highlights, shadows, and midtones. The Curves menu replaces high-end color correction systems and lets you isolate 16 ranges of pixel values between pure highlight and pure shadow.

Download pdf Photoshop Intermediate