What is the blur of a photo image? What are the factors that cause ambiguity?

The blur of a photo image means that the details or edges in the image are not clearly displayed, and the sharpness and sharpness are lost. There are many factors that cause ambiguity, and the following will introduce some common reasons.

1. Out-of-focus: During photography, the camera or mobile phone camera is out of focus, resulting in blurred photos. When the focus is not on the subject, the photo will appear blurred.

2. Improper shutter speed: If the shutter speed is too slow, shaking hands or moving the subject will lead to blurred photos. The shutter speed must be fast enough to eliminate the jitter when holding the camera and capture the moving subject.

3. Camera shake: When taking pictures, camera shake may cause the whole picture to be blurred. This situation is usually especially obvious in low light conditions, because the camera will use a long exposure time to capture enough light.

4, lighting conditions: insufficient light or too strong light may lead to blurred photos. In the dark environment, the camera needs a long exposure time to collect enough light, which easily leads to blurred photos. On the other hand, strong light may lead to overexposure, resulting in the loss of photo details.

5. Motion blur: When the subject or camera moves during the shooting process, it will cause the photo to be blurred. The fast motion of the object or the camera shake may lead to the motion blur effect.

6. Lens problems: Some lens problems, such as poor glass quality and stains or scratches on the lens, may lead to blurred photos. In addition, the use of inappropriate lenses or low-quality lenses may also lead to blurred images.

7. Compression or transmission quality: When an image loses details during compression or transmission, it will also lead to blurred photos. This usually happens when a digital image is compressed to a smaller file size or the image quality is lost during transmission.

Measures to avoid blurred photos

1. Use tripod or stabilizer to reduce camera shake, adjust focal length to ensure clear subject, and control appropriate shutter speed.

2. In the post-processing, you can try to use the image sharpening tool to improve the clarity and details of the photos.