Beginner's Tutorial: Sharpen a filter to make a picture clearer

This article mainly explains Photoshop's USM sharpening function, sharpening. For those PS master is insignificant, but for a user who feel headache with PS will cost a twists and turns, what high contrast retention, edge sharpening, what USM Sharpening, further sharpening ....

First look at the contrast effect:
Original:

Effect Chart:

This article mainly explains Photoshop's USM sharpening function, sharpening. For those PS master is insignificant, but for a user who feel headache with PS will cost a twists and turns, what high contrast retention, edge sharpening, what USM Sharpening, further sharpening .... Of course there are a lot of small digital image processing software has sharpening function, but I tell you, can not compare with Photoshop? Or it whole so much sharpening what to do, with PS sharpening is to improve the sharpness of precision. Of course there are many masters in magazines or forums to explain PS sharpening method, but that is the master class, said the terminology and long speech, he also told you how to sharpen PS, sometimes you need to look over and over to understand. We do not need to know how to sharp, we know how sharp on the line.
This article summed up the experience of the Masters, according to Tiger painting cat, with the vernacular to help you sharpen the whole, so that do not dare to use PS Rui's friends to make the film show wonderful. If you are really helpful, you are happy, I am happy, I did not white busy.
Sharpening the purpose is to make the film clearer, but if the whole virtual, it is misplaced, but also want to sharpen to clear, I see not easy. It is used in the camera dynamic range of small, sharp low, the image after the reduction of what. Here are two strokes I think the role of large, more accurate sharp method, the masters can not laugh, I am and beginners to learn to recruit, and you find out what wrong quickly hit me, lest mislead. Begin!
USM Sharpening, what do you mean? I also said it is not clear, anyway, it is a PS filter with a sharpening method, you will remember that is certainly more than the small software sharp on the line.
The first step is to open the image you want to sharpen.
The second step, copy a layer, the original layer of small eyes close, enlarge the figure to 100%.

The third step, in the "Filter" menu to find "sharpening"-"USM Sharpening", open.

The fourth step, move the "quantity", "radius", "field value" of the slider, left to see the large picture overall, the right to see small window part of the adjustment.

Want to sharpen the size of the diagram, set the value is different, here to give you a detailed description:
Quantity: How many pixels are ready to change. Is how many pixels want to increase the contrast to sharpen the effect, the more the more effective, the larger the picture to get more;
Radius: The changed pixel cannot be changed together, starting with the range of several pixels, so that the pixel near it changes gradually. That is, in the "Number" column determines the pixel, as the edge of the pixel is a few pixels for the range to start the change, the radius of the larger, sharp range, sharp, the stronger, this also depends on the size of the figure set.
Field values: What makes a pixel change. is to let the software know that the edge of the number of contrast pixels is used to sharpen. There's a photographic magazine that says the bigger the value, the stronger the sharpening, I think that said is inaccurate, should be: the greater the value, in the above two identified pixels, sharpening range, the transition natural; the smaller the number, the greater the contrast, and more useful for the edge.