In the process of digital graphics prepress processing, the original image scanned by the image input device is converted into digital information, and then the computer processing system, typesetting, image correction, color separation, creative and other processing are processed into a web page. The formed layout information can be recorded and sent to the output note. Record equipment, film, or board record. In this process, image scanning input, network and record output are all related to resolution.

由于不同的各个工作环节所用的设备和装备水平，专业和非专业的设备之间的差异，可分为扫描分辨率，屏幕的分辨率，分辨率的印刷网络电缆数量、打印机和激光照排机输出分辨率。在设计世界中，通常是测量图像分辨率的邮件大小。

The difference between the level of equipment and equipment used in different work links, and the differences between professional and non professional devices can be divided into scanning resolution, screen resolution, the number of printed network cables with resolution, and the output resolution of the printer and the laser phototypesetting machine. In the design world, it is usually the size of the mail that measures the resolution of the image.

像素是图像文件的基本单位。高分辨率图像比低分辨率图像含有更多的像素。例如，在分辨率为72英寸的图像中，它包含5184个像素，并且在相同大小和分辨率为300的图像中包含90000个像素。图像的分辨率取决于图像的分辨率，高分辨率图像通常比低分辨率图像表现出更多的细节和细微的色彩变化。分辨率越高，层次越细，颜色变化越微妙。

Pixels are the basic units of image files. High resolution images contain more pixels than low resolution images. For example, in an image with a resolution of 72 inches, it contains 5184 pixels and contains 90000 pixels in the same size and resolution of 300. The resolution of the image depends on the resolution of the image. The high resolution image usually shows more details and subtle color changes than the low resolution image. The higher the resolution, the thinner the layer, the more subtle the color changes.

图像的分辨率和像素的大小是相互独立的。在图像设置中，分辨率可以改变，但不可能改善图像的像素。如果仅根据图像的固有像素来提高图像的分辨率，就不可能改善图像的质量，但只增加图像的体积并占用更多的存储空间。当放大位图图像的大小时，可能有两种选择来增大图像的分辨率。

The resolution and pixel size of the image are independent of each other. In image settings, the resolution can be changed, but it is impossible to improve the pixels of the image. If the image resolution is improved only according to the inherent pixels of the image, it is impossible to improve the quality of the image, but only increase the volume of the image and take up more storage space. When magnifying the size of bitmap images, there may be two options to increase the resolution of the image.