What is resolution

    Resolution is a key indicator to measure the clarity of an image, display, or camera, usually expressed as horizontal pixels × vertical pixels. The following is a detailed description of resolution:

1. Definition

   Resolution refers to the number of pixels in the horizontal and vertical directions of an image or display device. The more pixels there are, the clearer the image.

2. Type

   Image resolution: The total number of pixels in an image, such as 1920×1080 means the image is 1920 pixels wide and 1080 pixels high.
   Display resolution: The number of pixels a monitor can display, such as 4K resolution is 3840×2160.
   Camera resolution: The number of pixels a camera uses to capture images, such as a 12-megapixel camera that can take 12-megapixel photos.

3. Common resolution standards

   SD (standard definition): 640×480
   HD (high definition): 1280×720
   Full HD (full high definition): 1920×1080
   4K UHD (ultra high definition): 3840×2160
   8K UHD (ultra high definition): 7680×4320

4. Influencing factors

   Pixel density (PPI): the number of pixels per inch. The higher the density, the finer the image.
   Screen size: At the same resolution, the smaller the screen, the clearer the image.
   Viewing distance: The farther the distance, the less impact the resolution has on clarity.

5. Application Areas

   Display: High-resolution displays are suitable for graphic design, video editing, etc.
   Camera: High-resolution cameras can capture more details.
   Printing: High-resolution images print better.

6. Relationship between resolution and clarity

   The higher the resolution, the clearer the image, but it is also affected by screen size, pixel density and viewing distance.

Summary

    Resolution is an important indicator to measure the clarity of an image or device, and is widely used in fields such as displays, cameras, and printing. High resolution usually means higher clarity, but the actual effect also depends on other factors.