JPG compression
Posted on | April 22, 2009 | No Comments
Minimum Kbs - Maximum quality!
- Fast method: optimization in flash
- Normal method: optimization in photoshop + import to flash
Fast vs Normal – You can try fast optimization before normal, sometimes quality result is the same.
Fast optimization in flash
brutal force optimization – try first, then think :)
1. Go to library window (shortcut: CTRL+L)
2. Choose Bitmap object (JPG or PNG or GIF)
3. Double click on bitmap – Opens window with options
4. Switch to Custom and set quality rate (0-100). Try 30-50 first.
5. Test Bitmap Size and visual quality (press TEST button), check size, check visual quality
6. If quality is OK, try to reduce size again (type lower custom-quality)
7. If quality is OK press OK button, and try the same optimization steps to next bitmap
8. Re-export SWF and check new size.
9. If overall bitmap quality (during animation) is OK and new size is OK too – work finished. Else try Normal optimization in photoshop
Attention – Adobe Flash CS4 has OPTIMIZATION BUGS. >>>
After bitmap optimization try re-export SWF file and run it. If bitmaps became flickering/disappearing, you have to close FLA file then re-open it and export SWF again. >>>
Normal optimization in photoshop
Saving bitmap file : Adobe photoshop -> File -> Save for WEB (Alt+Shift+Ctrl+S)
1. Save for WEB window view
2. Try optimise
- JPEG (type)
- Quality (0-100)
- Optimized
- You can try blur (higher blur = lower quality, lower size)
- Set metadata to None (no metadata = lower file size)
Tags: adobe flash > bug > Compression > cs4 > flash > flash optimization > optimisation > optimization > size
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