Photoshop: Sharpen and Improve the Detail of Photos Without Adding Noise by Using a High Pass Filter
Here’s a neat Photoshop tutorial that shows us how improve the detail in photos without adding color noise. This trick involves using a High Pass Filter. The very simple and easy to do video tut also teaches to control the area of the photo that we want to sharpen. If you don’t want a particular area to be overly detailed, you can easily do so by erasing the part with the High Pass Filter. Watch the video for the step-by-step guide or head over to Lifehacker for a written outline of the steps.