PS uses high pass filter to sharpen photos efficiently and without damage

Sharpening is usually the final step in the back-end photo, including Photoshop There are many many sharp methods or software available, and high pass filter is one of the most recommended way, because of its simple procedures, and can be near lossless image processing, but also a considerable degree of flexibility and control. Hi pass filter, as the name suggests, is to filter out some of the high contrast parts to deal with, mainly is the image of the edge/contour part, that is, we want to sharpen the place. In contrast, other sharp features, often the whole picture is modified, resulting in unnecessary roughness, so high pass Filter is still more recommended.

First, we open the picture in Photoshop (I'm using CS6), then right click on the layers position and select duplicate Layer.

Then on the new layer, select Filter–> other–>

And the general sharpness of the photos, we will choose 0.5–3 pixels ranged, depending on what you are dealing with the image. This time I choose 1.5.

Then choose Image–> adjustments–> hue/saturation.

Adjust the saturation to the minimum and reduce the color interference.

Then in this layer that already uses the high pass Filter, set it to overlay, while the opacity remains 100%.

Finally, we'll get the following figure:

We can look at the comparison, the following is 100% cut, the left image is before surgery, the right image is surgery, obviously in line, edge position and details of much clearer.

The figure below is a 100% cut of another picture, and it has a noticeable effect.

The following is not 100%, but it is obvious that the texture of the petals is clearer, but the image of the other parts (low contrast) is not degraded.

The following picture is another comparison, the surface of the metal is more obvious, the word is more clear.

We can choose different coverage mode, such as soft light/hard light to replace overlay, or adjust opacity, for example, I use Hard light and reduce opacity to sharpen, feel more hard net.

Of course, this is only used after the system, so that the image more sharp, the main body more prominent and then, we also need a lot of skills in shooting, to take the most sharp and clear photos, simply listed as follows:

1 Use tripod, remote shutter and even the mirror to advance, minimize any vibration, if you want to hand the camera, try to increase the shutter speed.

2 thin aperture, the general landscape photography people will be set to F/8–F/11, to help the overall picture clear, or the general shooting, the use of the best aperture value (usually the maximum aperture value to receive one to two).

3 use minimum ISO value to reduce noise.

4 accurate focus, if necessary even use manual focus.

5 attention to light, in general, light and strong light will cause the image is too flat, such as the midday sun, there is a shadow of light usually shoot out more prominent, automatic focus is also easier.

6 The use of better quality lenses, usually with a price ratio, or the use of fixed-focus lenses, usually better quality.

7 do not use the shock function on the lens (such as vr/is), also do not install the filter.

Use a camera that removes AA Filter (for example, Nikon d800e or Sony RX1R).

Category:

• PS Image Processing