Shulou(Shulou.com)11/24 Report--

The original title: "are there strange red, green and white edges in the photo?" Then use PS's trick to eliminate it quickly. "

There is a strange light edge in the photo when taking a photo, which is a problem encountered by many photographers. The light edge seriously lowers the quality of the photo, and it is too troublesome to eliminate it a little bit. Today we will share some tips for eliminating the miscellaneous edges of the photo.

The reasons for the formation of each kind of miscellaneous edges in the photo are different.

The first is the white edge, which generally appears in the post-revision. After the establishment of the selection adjustment, the actual selection near the outline of the object is not accurate, often more (or less) a few pixels, and finally becomes a white edge.

Followed by the red edge, green edge, often distributed on both sides of the object, magnified very obvious. This is due to the dispersion of the lens lens, which often appears in the low-cost lens (commonly known as "dog head"). Unfortunately, I happen to have a "dog head", so I have to eliminate the glossy edge every time I use it.

The second is the purple edge, generally facing a strong light source shooting, there will be this problem. The high light ratio environment is the main reason for the appearance of purple edge, which has little to do with the quality of the lens.

01. To remove the white edge, we open Photoshop and create a new blank layer.

Next, select "Clone Stamp" on the left, sample and change to "all layers" or "current and lower layers", and the blending mode to "darken" (if this place is not darkened, change the newly created layer to darken). Change the blending mode to darken).

Then take a sample in the sky near the white edge, and then use a small brush with a hardness of 0 to smear along the white edge. The white edge disappears and does not affect the roof.

Why choose sky sampling? Because the white edge is flanked by the "sky" and the "roof", the sky is brighter than the roof, so choose the bright side.

02, remove other edge method 1: take RAW format photos to take RAW format photos, drag to ACR / lr will automatically open in RAW format, we find the "lens correction" option, check "Delete chromatic aberration".

The following is the effect of eliminating chromatic aberration with this trick, which looks OK.

Method 2: manual edge removal is done in any format, and it doesn't have to be in RAW format. Also in the "Lens Correction" panel in the ACR filter, there is a "de-edge" function.

Quantity: represents the intensity of removal.

Hue: represents the range of light edges to be removed.

There is a drawback to this function, that is, it will accidentally hurt other places. For example, your operation is to remove the "green edge", the quantity value is too small, it is not clean, and the quantity value is too large, which will decolorize the green scenery such as green trees and grass. So keep an eye on it and don't get hurt.

Method 3: how can you adjust the brush without accidentally injuring the innocent?

Or in ACR, choose to adjust the brush, other parameters are set to zero, only set an appropriate parameter in "go to the edge", and then use a brush with very small hardness and small size to smear along the place you want to go to the edge.

In addition, you can also use hue saturation and other tools to reduce the color saturation of the light edge, which can also have some effect. When adjusting, create a mask and adjust only the area you want to adjust.

This article is from the official account of Wechat: photography Research Society (ID:shoujiPhotography), author: mobile photography and Photoshop

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