- 1). Upload the file to an online utility, such as Media-Convert for simple fixes. Because the adjustment happens completely online, you avoid having to download a program that takes up space on your hard disk and may contain harmful viruses. You can re-size the frame, re-sample the video at a different bit rate, or adjust the number of frames per second. You can even use several presets to convert your AVI for the best quality on specific devices, such as a Zune or iPhone.
- 2). Download, install and run a free video editor, such as Windows Movie Maker. Because this utility works without an Internet connection, you can fix the video picture in any location. You can control different options, such as brightness, speed, hue and threshold. You can apply special effects, such as grayscale, fades, film grain and watercolor. You can even join several AVI clips together, sort them in different orders, apply transitions and trim the clips.
- 3). Buy and run a commercial editor, such as Adobe Premiere Pro, which lets you fix individual frames or full videos. This expensive program requires training, but allows you to control picture quality at a highly-detailed level. For example, you can replace colors in individual frames, change portions of frames, and specify up to 32 bits per channel color. You can also integrate with external software, such as After Affects, with its motion filters and compositing features; and PhotoShop for creating individual images. If you're unsure about whether spending that much money will provide the best value, you can download a free trial.
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