Filters for virtualdub

RGB/Levels/Saturation Balance

Quick tour of Balance

 

 

If You have Excel and desire to see how it function -->OnExcel.zip.

 

Step 1.
Select three or more frames to represent extreme dark extreme light and middle spotlit scenes.


Step 2.
If it is necessary adjust levels to satisfy all of them.

 

Step 3.
If it is necessary adjust saturation to satisfy all of them.

 

Step 4.
If it is necessary adjust colors to satisfy all of them.

 

Step 5.
Do steps 2-4 in the different order to satisfy yourself.

 

Step 6.
Do look-see clip at all.

 

Trite remarks:

Too much long observation brings to deterioration of perception. And you must go and see other colors. For example: look through the window.

Not make great changes on step 2-4. If it is necessary then do this by iteration steps 2-4.

Every parameter named "Middle" brings more apparent modification than the rest two.

To increase changes in color or saturation of darkened objects you must increase dark levels. And probably you must change middle levels.

To increase changes in color or saturation of bright objects you must decrease light levels. And probably you must change middle levels.

Hosted by uCoz