2, find the "image size" option in the toolbar, click it.
3, in the pop-up window, you can adjust the width and height of the image, can also change the resolution of the image, the pixel value and other parameters.
4, after setting the parameters, click the "affirm" button, you can complete the image size adjustment.
note: in the adjustment of the image, if the original image's pixel value is higher, it is recommended to use a higher resolution
The rate; if the pixel value of the original image is lower, the lower resolution should be used to maintain the quality of the image. At the same time, you should avoid scaling or cutting images as much as possible to avoid affecting the quality of the image.
How to adjust the size of the image in proportion
How to adjust the size of the image in proportion in PS can be done according to the following steps:
Core operating logic: The proportional adjustment of the image size can be achieved through the restrictive proportional option of the "Image Size" dialog box or the equivalent scaling function of the free conversion tool.
Open the image Start the PS software, click "File"-"Open", select the image file that needs to be adjusted size.
Method One: Adjust the dialog box "Image size" by clicking on the menu bar "Image"-"Image size", pop up the dialog box.23 Select the "Binding ratio" option (to ensure the ratio of width and height is locked).45 in the "width"
Or enter the target size value in the "high" input box (for example, the width is set to 800 pixels), and the other dimension is automatically calculated according to the proportion.
click "Determinate" to complete the adjustment.
method 2: adjust
using the free conversion tool and press the shortcut Ctrl+T (Windows) or
0 Command+T
1 (Mac), go to the free conversion mode.
2
3 hold
after adjusting to the appropriate size, press Enter to confirm the transformation.
Additional description: Difference between the canvas and the image
0 To adjust the size of the canvas (i.e. the size of the picture background), click "image"- "canvas size", in the dialog boxEnter the target size, but this operation does not change the proportion of the image itself, only scale or cut the area of the canvas.
Note
Three methods of adjusting image size in the PS Details teaching :
Method One: Use Photoshop built-in functionality to adjust image size
Open image:
0 Run Photoshop (referred to as PS), execute file— Open command, select and open the image to adjust the size needed.123 Adjust image size4 :56 Execute image—imageThe size command, open the "Image Size" dialog box. In the dialog box, you can see the current image size (such as width, height, and resolution).
select the "re-sampling" option (usually selected by default) and then manually enter a new width or height value. Note that if the "restricted ratio" option (usually selected by default) remains selected, the height will automatically change in proportion when adjusting the width, and vice versa.
app changes and save:
9 click the button to determine application changes.0
Execute File—Save as a command, select the save location and file format (such as JPEG) and click the save button.
Method 2: Use Photoshop's "Free Transform" tool to adjust image size (for local adjustment or specific shape adjustment)
Although the "Free Transform" tool is mainly used to adjust the shape and location of the image, it can also indirectly change the overall size of the image by adjusting the edges of the transform box.
The following is a brief step:
Select Graphic Layer:
In the Graphic Layer Panel, make sure that the Graphic Layer contains the image you want to adjust is selected.
Enable Free Conversion:
0
1 Enable Free Conversion Tool by pressing the shortcut Ctrl+T (Windows) or Cmd+T (Mac).
2
3
4 Adjust Size
5 :
6
7 Push the mouse to the Conversion Box
On the edge, when the pointer turns into a two-way arrow, drag to adjust the size of the image.
Application Changes :
Apply Changes by pressing the Enter (Windows) or Return (Mac) key.
Note : Because the "free transformation" tool is mainly used to adjust shapes and locations, it may be necessary to combine other tools (such as cutting tools) in use to the purpose of accurately adjusting the size of the image.
In the "Image Size" dialog box.
Method Third: Using Photoshop's "Cutting Tool" to adjust image size and composition
Cutting Tool can not only be used to cut images, but also to adjust the overall size of the image by setting the size of the cutting box. Here are the steps to adjust image size with the Cutting Tool:
Select Cutting Tool:
0
1 Select Cutting Tool (Snap C) in the toolbar.
ong> Set the cutting box:
drag the mouse on the image to draw the cutting box. The size and location of the cutting box determine the size and composition of the image after cutting.
Adjust the cutting box size:
Drag the mouse pointer to the edge or edge of the cutting box to adjust its size.
01 Set the cutting ratio or resolution2 :34 In the cutting tool bar, you can set the cutting ratio (such as 3:2, 4:3rd) or resolution.
app cut:
press Enter (Windows) or Return key (Mac) app cut.
save image:
0
1 execute file— store as a command, select save location and file format, then click Save button.
2
3
4 summary
5 :
6
7 is used to adjust image size using Photoshop
Three methods. method one through the "image size" dialog box to accurately adjust for most situations; method two through the "free transform" tool to local or specific shape adjustment; method three through the "cutting tool" to optimize the composition while adjusting the size. you can choose the appropriate method according to the specific needs.
Use PS software to adjust the image pixel size and compress the big picture, can be operated according to the following steps:
adjust image pixel size retain the length width ratio: pressCtrl+Alt+I, pop up the "image size" dialog box
In the "scale style" "restricted ratio" before scaling, this time the length pixel of the original image will be shrunk in proportion, click "defined" to get the required pixel image.
change the length ratio : to change the length ratio of the original image, remove the "scale style" "restricted ratio" before scaling, set the image length and width different shrink ratio, click "defined", you can get the image in different proportions with the original image.
compressed image stored as PH 6 : if the image is too big, you need to keep the original image compressed,Click the upper-right corner of “file”- “stored as”. Adjust image quality: In the pop-up storage dialog box, you can see the “quality” option. The higher the quality value, the better the image quality, but the larger the file; the lower the value, the smaller the image file, but the quality will decrease. For example, when the image quality is 12, the image size is 3.2M; when the image quality is 1, the image size is 153.8K, the image is compressed a lot.