add more masked info

_subsections/chapter04.org

@@ -71,7 +71,7 @@ it also applies even to filters such as blurs.  ie, the blur will affect the sha
 the way to unlink  or unlink is to click on the link icon that connects the mask to the image
 
 ** turning on and off mask
-hold Shift key and click on the mask, a red X will appear on mask
+- hold Shift key and click on the mask, a red X will appear on mask
 
 ** mask properties: feather
 - bring up properties panel on mask
@@ -80,6 +80,55 @@ hold Shift key and click on the mask, a red X will appear on mask
 
 - find the feather slider and change it
 
+** mask properties: density
+
+*** apply color lookup mask to subject
+**** method 1
+- add a the 'color lookup' filter
+- select subject from image layer
+
+- =OPT+DELETE= apply mask to color lookup layer
+
+- =CMD+D= deselect the selection
+
+- =CMD+I= invert the mask
+
+**** method 2
+- select subject
+- add a 'color lookup' filter
+  - this will automatically apply a mask to the selected area
+
+*** decrease the opacity of the mask on the rest of the layer
+- open up properties
+- slide the density to be lower or higher
+
+** duplicate masks
+
+*** create a new overlay layer
+- =CMD+SHIFT+N= create new layer
+  - choose blend mode 'overlay'
+  - click the check box to "fill with overlay-neutral color 50% gray"
+    - overlay blend mode hides anything that is 50% gray
+    -
+         #+ATTR_HTML: :width 500px
+       [[file: ../_share/media/img/photoshop-beg-piximperfect/lesson4-2.png]]
+
+*** convert the overlay layer to a smart filter
+- select the overlay layer
+- =Filter->Convert for Smart Filters=
+- =Filter->Noise->Add Noise=
+  - set the noise to 30
+- =Filter->Blur->Gaussian Blur=
+  - noise is to fine, we need to blur it
+  - set the blur to .8
+
+*** apply the original mask to the smart filter
+- OPT + DRAG
+- =CMD+I= invert the mask
+  - apply the smart filter mostly to the background
+
+
+
 
 * Playlist