How to convert your camera files to get smaller size with great quality and compatibility
Making video files smaller and compatible with your DivX player
Following scenario applies to Canon 860IS, but you can try it with another camera too.
- Run VirtualDub
- File -> Open video file ... (.avi)
- Setup audio
- Audio -> Check "Full processing"
- Audio -> Compression -> Lame MP3 -> 44100Hz 128CBR
- Setup video
- Video -> Check "Full processing"
- Video -> Compression -> DivX -> Configure
- DivX Codec Properties -> Home Theatre Profile
- DivX Codec Properties -> Rate control -> 1pass - quality based
- Target quatizer (Q) = 2 = almost identical output (soft)
- Target quatizer (Q) = 3 = compression artefacts may appear
- File -> Save as AVI (if you want to process more files at once or whole directory, check "Don't run this job now...")
- Repeat for each video file
- If you want to process whole directory
- File -> Job control
- Job control -> File -> Process directory ...
- Choose in and out directory
- Job control -> Start
For Canon A40 you should use DivX Converter to get most compatible output.
Quantizer settings overview
- Q2 = almost identical (but sometimes overkill)
- Q3 = macroblocks in still pictures
- Q4 = same as Q3, but there is difference on LCD, sometimes macroblocks in motion, but still great quality (files with minimum of colors will be compressed to 1/2 of its original size)
- Q5 = borderline (files with minimum of colors will be compressed to 1/3 of its original size)
- Q3.5 = half of the frames will be processed at Q3 and half at Q4 (first Q3, second Q4 etc.)
For web you can use max. width=800px and max. height=750px.
For printing 10cmx13cm frame (cca 300DPI) you can use width=1600px and height=1200px.
Allways resize Lanczos, optionally sharpen +10 (XNView)
For example, when original total size of your photos is 258MB, at 1600x1200 you will get total size of 20MB, at 1280x1024 you will get size of 15MB.
Try out MS Photostory to create a really nice looking presentation from your photos.