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Photoshop Tutorial 05: Photoshop 6 Picky Image Processing It is often necessary to operate a certain part of the image. Select the part to be operated on from the original image, that is, the operation area. Especially in complex backgrounds, how to select the image quickly and accurately is very important. Importantly, we really have to be picky and take out the parts that are most needed. Photoshop provides us with powerful selection tools. Mastering the selection tools will bring great convenience to your image processing. Selection tools
Selection tools include the mask tool, lasso tool, and magic wand tool (as shown in Figure 5-1). The selected area is represented by a black and white line that rotates clockwise. The selection area is the range used for editing. All command detachments are valid in the selected area and are invalid outside the selected area. Below I will introduce Photoshop’s powerful selection tools separately.
Figure 5-01
Rectangle and elliptical selection tool
The rectangular mask button is, which can use the mouse to pull out a rectangular selection on the layer frame. As shown in Figure 5-4, first click
, the mouse changes to a glyph on the layer, drag with the mouse Draw a rectangle in the image. The line in the selected area changes to a highlighted dashed line. You can further perform other operations on the selected area.
Figure 5-04
Rectangle The mask tool taskbar is divided into three parts: modification method, feathering and anti-aliasing, and style. As shown in Figure 5-5.
Figure 5-05
Note : Modification methods are divided into Four types:
(1) Normal selection——Remove the old area and select the new area.
(2) Add selection–On the basis of the old selection area, add a new selection area to form the final selection area.
(3) Subtract selection – from the old selection area, subtract the intersection of the new selection area and the old selection area to form the final selection area. (As shown in Figure 5-8~Figure 5-10)
Figure 5-08
Figure 5-09
Figure 5-10
(4) Select intersection: The part where the new selection area intersects with the old selection area is the final selection area. (As shown in Figures 5-12-5-14)
Figure 5-12
Figure 5-13
Figure 5-14
Feathering can eliminate the normal hard boundary of the selected area and soften it, that is, create a transition section on the boundary (Figure 5-15 shown), its value is between 2-255pixels.
Figure 5-15
Style It is used to specify the shape of the pulled rectangular selection box. There are 3 options in the style drop-down menu, namely:
1) Normal – the default selection method and the most commonly used. Any rectangle can be drawn with the mouse.
2) Constrain the aspect ratio – the aspect ratio of the rectangle can be set arbitrarily. Just Enter the corresponding number. The default value is 1:1.
3) Fixed size: In this way, the size of the rectangle can be accurately determined by entering the width and height values. in, the system default is 64×64px.
The oval mask button is, its taskbar is roughly the same as the rectangular mask (as shown in Figure 5-20 ), just follow the rectangular operations. Shift+
The selected area is a circular area.
Figure 5-20
Search Lasso
If the graphics you want to select are irregular and non-rectangular masks and elliptical masks can do it, you can use the Lasso tool of Photoshop 6.0, which can draw the selection of irregular shapes with freehand. area (shown in Figure 5-21). The noose option panel is shown in Figure 5-22.
Figure 5-21
Figure 5-22
If the selected curve end point and If the starting points do not overlap, photoshop6.0 will automatically close it into a complete curve. You can also form any curve by holding down the Alt key and dragging the mouse at the same time. Just click on the starting point and end point to connect them with a straight line.
Press and hold the Delete key to clear the recently drawn line segments until the desired part is left, then release the Delete key.
Multilateral lasso tool
Multilateral lasso tool, you can select irregularities in the image polygonal graphics. Move the mouse to the image point and click, and then click each Luodian to determine each straight line. When you return to the starting point, a small circle will appear under the cursor, indicating that the selection area is closed. Click the mouse again to complete the operation (as shown in Figure 5-24). The Delete key and Alt key operate like the lasso. The same goes for Multilateral Lasso’s taskbar (shown in Figure 5-25), which will not be introduced here.
Figure 5-24
Figure 5-25
Magnetic noose
Magnetic Lasso is a lasso tool with identifiable edges. You can select irregular graphics in the image but with a large contrast between the graphics color and the background color. Select
button, the taskbar will display the option of the Magnetic Lasso tool accordingly, as shown in Figure 5- As shown in 28, it is a little different from the above lasso, with the addition of lasso width and frequency. The former is used to set the detection distance of the magnetic lasso tool when selecting, and the latter is used to set the connection frequency of the lasso connection point when the mouse is moved. Click on the image to select the starting point, and then move the mouse along the edge of the graphic (as shown in Figure 5-29). There is no need to hold down the mouse. When you return to the starting point, a small circle will appear in the lower right corner of the mouse, indicating that the area is closed. This operation can be done with a single click of the mouse. The Delete key and the Alt key work the same as the lasso. /UploadPic/2007/10/26/20071026786219.jpg” border=”0″ alt=”” onload=”return imgzoom(this,700);” onclick=”javascript:window.open(this.src);” style =”cursor: pointer;”/>
Figure 5-28
Figure 5-29
Magic Wand
Magic WandYes A magical selection tool. It can be used to select areas with similar colors in the image (as shown in Figure 5-31). When you click a point with the magic wand, areas with similar and similar colors to the point will be selected. It can save a lot of energy in some cases to achieve unexpected results. By setting the character panel of the magic wand, you can control the similarity of its colors.
Figure 5-31
Magic The stick taskbar (shown in Figure 5-33) includes selection methods, feathering and anti-aliasing, and tolerance, Apply all layers. Tolerance is the range of error used to control color. The larger the value, the wider the selection area. The value range is between 0 and 255, and the system default is 32. Figure 5-34 and Figure 5-35 are the renderings when the tolerance values are different.
Figure 5-33
Figure 5-34
Figure 5-35
When processing the selected area, regardless of whether the selected area is processed What to do, you can only edit the part within the selected area. This part is the only activated content on the floral cloth. In turn, after establishing the selection area, you can perform the required operations on it. But if you want to go to other areas, you must first cancel the selected area. To cancel the selection, just click anywhere outside the selection area with any marquee tool, or press the Delete key to cancel. Editing can only be done within the selection before canceling.
Cut, copy and paste
Execute or
command, you can put the operation layer on The selection is cut or copied. At this time, Photoshop will automatically copy the selection on the operation layer to an area called the clipboard on the computer. At this time, execute
command will copy the contents of the clipboard to the current working file and place it on a new soil layer. This is how you create photos of your idols that look real.
The following is an example to illustrate:
1) Open two��Pictures. As shown in Figure 5-40.
Figure 5-40
2) Use the magic wand tool , and then select
command to select the chick. As shown in Figure 5-45.
Figure 5-45
3 )Selector
command, click the landscape photo as the current working file, select
command to copy the image just now Paste it over, as shown in Figure 5-51.
Figure 5-51
4 )Select the layer’s move tool, move the chicken to the appropriate position.
Cropping
Cropping is a painter’s term, which refers to cutting off the excess part of a painting or picture. It can be regarded as a special selection tool. In Photoshop 6, Adobe has made important improvements to the cropping tool. When cropping, you can see that the cropped part becomes dimmed, making it easier to see what is being done.
The specific steps of the cropping method are as follows:
1) Select the cropping tool .
2) Determine the properties of the cropping tool in the taskbar (as shown in Figure 5-54).
Figure 5-54
3 ) On the image you want to crop, use the mouse to drag out the clipping interval frame (as shown in Figure 5-55).
Figure 5-55
4 ) to adjust the clipping frame. achieve the intended effect.
5) Press the Shift key or double-click the mouse in the box to cut (as shown in Figure 5-56).
Figure 5-56
Select , you can eliminate clipping of the image. The so-called clipping elimination means that the layer and the pattern are cut at the same time during cutting. Select
, you can hide the image and cut it. That is, only the canvas is cut when cutting, and there is no impact on the layer, as if the layer is redundant and hidden. It looks the same.
is used to set the size and resolution of the cropped image. In
and
Enter the required information later The values of width and height, in
Enter the value of the resolution, so that the cut image will automatically generate the set value the size of. Click
will clear all settings.
3.4 Mobile
Use the mobile toolLayers can be selected, transformed, arranged and distributed . Its taskbar is shown in Figure 5-65.
Figure 5-65
Select The layer can be checked in the taskbar, click on the image with the mouse to automatically select the number of points touched by the mouse. Fly the transparent image layer. Transform layer check
, after clicking the image with the mouse, you can perform operations on the selected layer or layers. Transform. After selecting the border, right-click the mouse and a pull-down menu will appear. You can select the transformation method in the menu (as shown in Figure 5-68).
Figure 5-68
We will teach you the simple ones, and you will share the profound ones
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