Commonly used software in video image processing The reason why halo appears in video images

Commonly used software in video image processing

In the process of video image processing, commonly used software includes the following:

1. Adobe Premiere Pro: A powerful video editing software that provides a variety of video processing tools and effects, suitable for various processing needs such as editing, color grading, special effects, etc.

2. Final Cut Pro: Video editing software designed specifically for Apple devices. It has advanced editing functions and efficient workflow and is widely used for professional-level video processing.

3. DaVinci Resolve: An all-round video editing software that integrates multiple modules such as video editing, color grading, special effects, etc., and has powerful color correction and color grading capabilities.

4. Adobe After Effects: Software used to create professional motion graphics and visual effects, often used for video post-processing, such as adding special effects, synthesis, animation, etc.

5. Avid Media Composer: A mainstream professional-grade video editing software, widely used in high-end production fields such as film and television, with powerful editing and processing capabilities.

6. Sony Vegas Pro: A full-featured video editing software that supports multi-track editing, special effects, subtitles and other functions. It is easy to use and suitable for beginners and intermediate video processing.

7. HitFilm Pro: A software that integrates video editing and motion graphics effects, providing a rich special effects library and color correction tools, suitable for producing high-quality visual effects.

These software have their own characteristics and scope of application. You can choose the appropriate software for video image processing according to your needs and operating habits.

The reason why halo appears in video images

There are several reasons why halo appears in video images:

1. Too bright light source: When there is a strong light source in the shooting environment, the light may be overexposed, forming one or more bright halos around the image.

2. Shooting against backlight: When shooting under backlight conditions, light directly enters the lens, causing reflection and scattering of the lens, creating a halo effect.

3. Lens problem: Some lenses may have design defects or diffraction problems, resulting in halos during shooting.

4. Lens filter: When using a lens filter, if the filter is of low quality or not suitable for the current shooting environment, it may cause halos.

5. Dirt or scratches: Dirt, fingerprints or scratches on the lens may interfere with the propagation of light and cause halos.

6. Excessive contrast: When there is a large difference in brightness in the shooting scene, such as bright light sources and dark details, it may cause halo phenomenon.

To solve the halo problem, you can take the following methods:

- Adjust the lighting: Avoid overly bright light sources and try to shoot under moderate lighting conditions.

- Adjust the shooting angle: Avoid shooting directly towards strong light sources and try to adjust the shooting angle to avoid lens reflections.

- Clean the lens: Clean the lens regularly to make sure there is no dirt, fingerprints or scratches.

- Use high-quality filters: If you need to use filters, choose high-quality filters and choose the appropriate type according to your actual needs.

- Adjust shooting parameters: According to the specific shooting scene, reasonably adjust the contrast and exposure parameters to avoid excessive brightness differences.

If vignetting is a persistent problem and seriously affects image quality, you may want to consider replacing your lens or having it professionally repaired.

How to solve the problem of flickering light in the video

The problem of light flickering in the video is usually caused by the mismatch between the power frequency and the camera's frame rate, a condition known as flicker. To fix this, you can try the following:

1. Adjust the camera's frame rate: Set the camera's frame rate to the frequency of the power supply. In most areas, the power supply frequency is 50Hz or 60Hz. By setting the frame rate to match the power supply frequency, flicker can be reduced or eliminated.

2. Use proper lighting: If using artificial lighting, make sure the lighting fixtures are stable and do not cause flicker. Choose stable LED lights or use electronic dimmers to reduce flicker.

3. Use filters: Using filters on your camera lens, such as ND filters or polarizing filters, can help reduce the effects of light flicker.

4. Adjust exposure parameters: Try adjusting the camera’s exposure parameters, such as shutter speed, ISO, etc., to find a relatively stable exposure setting to reduce or eliminate light flicker.

5. Synchronize cameras and lighting: Use external synchronization equipment or technology to synchronize the camera with the lighting system to ensure that the power frequency matches the frame rate and reduce flicker.

6. Replace lighting equipment: If the flickering problem cannot be solved, you may need to consider replacing the lighting equipment and choose equipment with better quality and able to provide stable light source.