Common sawtooth problems in Photoshop operations

1. The sawtooth problem caused by the deformation of the Ctrl+t class

1-1 Reason: General options are not set properly (rarely)

Workaround: Open Menu [Edit]-[Preferences]-[General]. Make sure your image interpolation is set to two cubic cubes (for smooth gradients).

Of course you have special needs and it's OK to make sure that the meaning of the options is different (for example, pixel-style scaling is usually "near" to ensure it is not blurry).

1-2 reasons: The Sawtooth and shape produced by rotation and shrinking

Solve:

1-2-1 first rotate and then shrink, two steps away (split the ctrl+t into two times, and the last one can reduce the distortion/rotation produced burr).

1-2-2 uses vector objects (such as a common text perspective variant, not [raster], but [convert to shape]). Vector objects in general deformation more fidelity, another significant advantage is to withstand repeated ctrl+t without problems.

1-2-3 How big the picture is, preferably not ctrl+t (especially for simple shapes). Similarly, can be less ctrl+t, do not repeatedly ctrl+t. Special taboo pull big and pull small, turn and turn to ~ ~ Combined with the first: if there is a narrowing, preferably two times deformation, the shape in place, the second narrowing.

1-3 reason: When rotating 90 degrees/180 degrees, if you use the midpoint positioning will be a rerun. Causes a blur or sawtooth to occur.

Solution: To maximize the original, preferably at 90 degrees (180 degrees) rotation with the corner point positioning (any corner point). This avoids the quality loss caused by the re-operation of pixels.

2. The sawtooth problem that fills the selection multiple times

Reason: repeated padding (including painting, pull gradient, etc.) results in the original used for smoothing edge semitransparent pixels superimposed, more and more opaque to produce solid sawtooth.

Resolve: (First, place the area that may need to be repeatedly populated on a separate layer)

Once 2-1 is filled, the transparent area of the layer is locked immediately. So how can you fill, the edge will not be solid.

2-2 solid colors use shift padding instead. When you fill the foreground or background colors, hold down SHIFT and keep the transparent pixels.

2-3 Create a mask with opaque area (ctrl+[thumbnail) Select the opacity area of the layer and click the Add Mask button below [layers panel];

Or use the next layer (this layer is filled only once to define the shape) to make a clipping mask. Because the mask is no longer changed, the transparent area will not change, edge translucent naturally will not be a problem.

3, Magic wand/magnetic lasso and other selection tools selected by the region has Sawtooth

Reason: Because the image compression and so on causes the sawtooth (jpg picture common rectangular color block), or other reason causes the software to distinguish/the adsorption is inaccurate.

Solution: It is best not to toss the poor quality of the picture, or use the [path tool] to make selections for this picture. A lazy way, you can choose to use ctrl+d [feather] a point of selection. The specific feather quantity refers to the actual use and the Sawtooth degree.

You can also use the Adjust Edges Control Panel to adjust the selection before you use it.

You can also use layer masks to handle the edges of such objects (only a remedial measure, of course), specifically:

ctrl+[thumbnails Select the opacity area of the layer and click the Add Mask button below [layers panel] to generate the mask. Hold down the ALT key to click on the mask (you can see the mask directly);

The mask is then processed using [filter]-[blur]-[Gaussian Blur], which eliminates edge aliasing. Then use the ctrl+m to open the Curve tool, pull the contrast, and distinguish the fuzzy lot. Watch out too straight and you'll get jagged.-_-| | |

This specific can be seen below this.

4, the production of logo edge is always fluffy, how to remove burrs?

I am a programmer, understand the code, do not know art, the logo modified for a long time, or fluffy hastily, it is impossible to account for the customer.

How can I get rid of the burrs, please? PS or FW are OK.

Solution:

Narrow it down a little bit and use the Topaz filter.

Or use a mask, blur the mask, and then straighten on the mask with the curve, the edges are clear.

However, for this simple shape, it is recommended to use the Pen tool to sketch the path, the best effect

Click on the picture to enlarge view the size of the text!

Click on the picture to enlarge view the size of the text!

Click on the picture to enlarge view the size of the text!

This example uses a mask to narrow the display range, and the sawtooth block is invisible.

When the curve is adjusted, the verticality of the middle section determines the sharpness of the edges. Position determines the size of the range

Of course, the new version of PS has a constituency adjustment function (Refine Edge), it can easily adjust the selection,

You can then make a mask directly from the selection.

6, [layer style]-[stroke] after feeling the stroke has sawtooth

Reason: [stroke] style is more visible to semitransparent pixels ~ (so we also use [stroke] styles to check for invisible free pixels).

Solve:

5-1 if it is a solid color object, direct sharpening can make edge burr improved; If there is content, in order to not sharpen to the image itself, only sharpen the edge of the shape, you can do the following. ctrl+[thumbnails Select the opacity area of the layer, and then [shrink the selection]1 pixels and then [deselect], and finally [menu]-[filter]-[sharpen]-[sharpen].

5-2 after the above treatment, there is also uneven. Use the ultimate * * * * * * *, hard [eraser]! With the hardness 100% [eraser] (brush mode) carefully erase the extra parts.

7, vector shape [layer style]-[stroke] after feeling stroke virtual (mainly horizontal/vertical)

Reason: Vector object of the path node, coordinates than the pixel to be accurate, accurate to the decimal point after the specific several don't remember clearly. So it may not fall on the integer point. For example, a horizontal line, two nodes of the y=3.56 so that it is not clear, of course, the strokes will also blur out.

Solution: If you always draw a vector shape at 100% magnification, you're not going to run into this problem at all. At 100%, your node must fall on the integer position.

If you zoom to 200% to draw, your node may have coordinates that are x=2.5,y=3.0. 300% is the x=45.33,y=5.66.

If you just pull the zoom below the Navigator, say 52.3%, it's harder to fall into the integer position.

So a workable solution is to draw in a magnification that resembles 100%, 50% (which must fall to 2) and 25%. or after drawing in the size of 200%,400%, use the keyboard arrow keys to move the wrong node several times to reach the integer bit.

8, compress the picture to brighten the dark part to appear the block and so on unnecessary details (sawtooth)

Reason: Or the problem of compression algorithm, some level is not obvious block of things. The curve of a tune becomes very obvious.

Solve:

7-1 repeat gland with 20%-30% soft edge stamp. This is also a number of photo studio common grinding method, you can remove unnecessary details. Don't dwell on the details

7-2 with patching tools. Also not to repeat, belong to the category of the revised map

7-3 with fuzzy tools or after selection with fuzzy filters, etc.

　　

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