.
1. .
2. lasso tool
3. 
:
( layers palette ) ,
3. channels palette. - .
Red :
4. Red . .
5. channels palette "Channel Options"
Selection. "Selected Areas" , , . :
6. Image > Adjustments > Levels
6. Image > Adjustments > Levels
6. Image > Adjustments > Levels - . . :
7. . . .
:
, . channels palette Red .
(15)