If you are dealing with interlaced video source, you may experience interlacing artifacts (sometimes known as comb artifacts).

To remove the interlacing artifacts on the images of the video, use the menu Image > Deinterlace.

Before and after using the menu Deinterlace.

Kinovea tries to detect the image aspect ratio specified in the video file.
If this automatic detection fails, you can force the video to be displayed to a known image aspect ratio.

Use the menu Image > Image Format and choose one of the preset options, Force 4:3 or Force 16:9.

If you are constantly dealing with videos for which Kinovea cannot detect the image aspect ratio, you can permanently force an image format from the Preferences dialog.

See also:

• Adjusting image quality
• Mirroring
• Preferences