I don't want to see a nosebleed, so I won't show you the face value.
A, before we deduct each picture, we must first find out what tools are most suitable. Maybe you can't analyze it yet, it doesn't matter. Let's take a look at the commonly used matting tools first.
Rectangular marquee tool: suitable for selecting square images. If you need a prism, you can click the right mouse button and there will be various commands. After adjustment, press Enter, and then press CTRL+J. ..
Polygon Lasso Tool: Suitable for picking up polygon images with straight edges. Double-click the mouse and find your own starting point. Hold down the alt key to reduce the selection.
Magnetic lasso tool: suitable for picking up images with obvious edges and irregular shapes.
Magic wand tool: suitable for picking up images with a single color or a single background color.
Elliptical marquee tool: suitable for picking up circular images. Hold down the shift key for a long time to draw a perfect circle, and hold down the space bar to move the selection. At the same time, you can't release the mouse button, otherwise it doesn't constitute a command. Later, when the shape is finished, let go of the mouse first, and then release the shift key.
Color range command matting: suitable for images with large color contrast, and can be accurately selected according to the object or background and color difference. (Choose the color range command in)
Quick selection tool: working in brush mode, select images with little color change.
Pen tool: People will use accurate matting with high requirements for image edges when completing product drawings.
2. After mastering the above tools, you need to know how to use this tool, so you can start by setting the parameters, as shown below: unlock the picture, select the pen tool, set the pen tool properties, etc. , as shown in the figure below:
(1) double-click the "background" layer to unlock, this is a good habit, don't forget.
② Select the pen tool.
(3) Select "Path" in the property bar, and you can try to check "Shape Button" to see what the result is.
1, you find a place to "write", anywhere.
2. After clicking the first stroke with the pen tool, an "anchor point" will be generated and then released. Many novices click the first pen and the mouse swings around! Click and release the mouse.
3. Continue to click the next stroke (generate the next "anchor point").
Here are the questions: First, where is the next (each) anchor point in the cut block?
Second, which direction does the mouse move after the anchor point falls?
These two are the key problems of PS pen matting! Let's look at these two questions: first, where is the next (each) anchor point in the cutting block?
The above picture is the anchor point I hooked, and the black dot you see is what we call the anchor point. Anchor points generally fall in places with obvious turning points or ups and downs. Because of the ups and downs, it is difficult to hook ps at one time. So the anchor point should be located at the turning point as far as possible.
Second, which direction does the mouse move after the anchor point falls? Before understanding this problem, we need to understand some basic concepts and the relationship between anchor points and control lines, as shown in the figure below.
Explain the above picture: each anchor point (square black dot) generates two control points and two control lines. The control point is round, note: the control point is round and the anchor point is square! What are the front control lines, front control points, rear control lines and rear control points for? The front control line will determine the radian of the next path (line), and the back control line and the back control point are used to adjust the back path. Look at the following figure (the angle between the front control line and the outer contour of the object will affect the radian of the path):
According to the above figure, we can see that the different angles of the front control line (between the front control line and the thigh of the main object) and the length of the control line all determine the radian of the path and the "fit" length with the thigh of the main object. If we cut more pictures, you will have a "feeling" and know how long and how many angles the front control line needs.
Little suggestion:
① The length of the control line is about 1/2 of the next path.
② The included angle between the control line and the outline of the main object is about 5- 15. If the curvature of the outline of the main object is large, the angle can be larger. 15-45.
As long as you have a good grasp of the length of the control line and the angle of the outline of the object, then when you crop the picture, the next path will basically coincide with the outline at one time. Of course, there are three ways to deduce this kind of graph with more curves and turns:
The first type: "let nature take its course", buckle from top to bottom in turn to find a turning point. Buckle slowly. As shown in the figure below:
The second type: "Great Leap Forward", hook it once, then add anchor points and fine-tune. Pay attention to the sequence, as shown below:
The third type: "chicken pecks rice", which is buckled bit by bit, and the distance between anchor points is very short. It's finished. It looks like a mouse has eaten it. It is forbidden to cut the picture like this, as shown below:
What else should I pay attention to when sketching with PS pen?
① It is suggested to enlarge the image a little (CTRL+"+ "+ ") when matting with a pen, but the proofs will be deducted more finely, otherwise it will be rough.
② If the pixels of the picture are low and blurred, you can't see the outline clearly after zooming in, so you can squint! . All the students who draw must have had this experience.
3. After the deduction, the path must be closed. Where is your first anchor point and where is your last anchor point! This is the end!
(4) After the path is closed, click "Add Vector Mask" at the bottom of the layer panel to be OK, and the diagram will be buckled. Look at the picture below:
Well, we'd better see what it looks like when it's buckled. It's ok if you know that you can cut the picture without fine-tuning in PS.
Source: Designer Colorful