Modify image resolution and image resolution

Modify image resolution and image resolution

Because of project requirements, it is essential to use the image Cutting feature during android development. Currently, an App is being opened independently. Due to some image cutting resolution problems, it is always frequently used by artists,

In fact, it is not a good job for the artist, that is, there is no standard for the cut chart. It is either big or small in the project, and there is an impulse to break down the machine! Later, I thought about whether there were all images.

Is there any way to modify the resolution? I am not easy to learn. I used to learn the PS for a period of time. When I see the interface design or image processing, I feel that I am not suitable for design.

Find out if there are any simple methods. Later I found that the windows tool can solve these problems, and I would like to write a small record to share with you.

Current image resolution:

Note: pixel

1. Right-click the image and use the drawing tool provided by windows to open it:

2. Page display:

3. Click to resize again

4. Select a pixel and enter the corresponding value to save it.

There are two strokes at the most, but it seems pretty cool. After setting it, the image size will be compressed according to the resolution and other proportions! You can also select whether to check whether to maintain the aspect ratio as needed.

Note: of course, if you are familiar with ps, you can change the resolution and more advanced settings when saving it.

Change the image resolution size

The modification method is simple:

1. Divide the image size you want to change by the size of the original image.

Change 640*480 to 320*240:

320/640 240/480.

This can be done through a calculator. Of course, the data obtained is 0.5.

2. Right-click the image you want to change-open mode-draw

After the drawing function is enabled, click the image option and select "stretch/Twist"

3. Don't worry about it. Just input the data you just got on the stretch, 0.5. Of course, 50 will be added on it.

Because it is a percentage.

4. This is done. Save or save it as needed.

The method is very simple. I hope to give a reference to a friend who is anxious about the image size.

How to use Photoshop to change the image resolution

On the photoshop page, click the image and click the image size. A box is displayed, including the pixel size (pixel size), Print size (image output size), and resolution.
First, clarify several meanings
(1) The pixel size is the number of pixels in the image height and width. The file size of the image is proportional to the pixel size.
(2) Resolution is the number of pixels displayed per unit of print length in an image, which is usually expressed in pixels/inches (ppi.
(3) pixel size = resolution square * area of the image
High-resolution images contain more pixels than low-resolution images of the same print size, so pixel points are more intensive. For example, a 1x1 inch image of 72 ppi resolution contains a total of 5,184 pixels (72 pixels wide x 72 pixels high = 5184 ); images with the same resolution of 1x1 inch and a resolution of 300 ppi contain a total of 90,000 pixels. Because higher-resolution images use more pixels to represent each area, they usually reproduce less-resolution images with more detailed and finer color transformations. However, to increase the resolution of an image scanned or created at a lower resolution, only the original pixel information is extended to a larger number of pixels, without improving the image quality. To determine the image resolution used, the final media of the image should be taken into account. If the image is used for online display, the image resolution only needs to meet the typical display resolution (72 or 96 ppi ). However, printing an image at a low resolution may result in pixels-the output is large and the display is rough.
Based on the above concepts and your actual situation, select the appropriate image size and resolution.