Swatches, Brushing, Textures, Sharpening, Focus Stacking

Hints and Tips 16th September 2020

 

Step

Shortcut

Name Layer

 

COLOUR INDEX TABLE

 

 

1.

Open up the image and duplicate it, (Image / duplicate) change the mode to 8 bit.

 

 

2.

Rename the layer …..Index only

 

 

3.

With duplicate image selected

Image / Mode / Indexed Colour

 

 

4.

Image / Mode / Colour Table.  Save with an appropriate name and save as an *ACT file type.  Also make sure the location of the ACT file is known.

 

 

5.

Close the dialogue box and close and later delete Index file.

 

 

6.

With the original image file go to Window / Swatches / Import Swatches.  Navigate to the file location and change the file type from the default *ACO to *ACT.  The new folder of colours will appear at the bottom of the swatches window.

 

 

 

Straighten

 

 

7.

a. Guide, to straighten.

Cntrl + R

 

 

b. Ruler Tool (under eyedropper tool).

 

 

 

c. Crop, Straighten is in the options menu.

 

 

8.

Transparent cells are produced at the corners.  With the magic wand tool, making sure contiguous is not checked click on one of the transparent corners.  All corners will then be selected. 

 

 

9.

Edit / Content Aware Fill.  Mask off the areas if the selection isn’t working.  The clone tool could also be used for this step.

 

 

 

Selection

 

 

10.

At this point a decision needs to be made.  If there is a solid coloured background then the magic wand can be useful.

Select Subject from the options menu is now very sophisticated and often does a good job. 

There is also an object selection tool under the quick selection tool.  There are two mode options a lasso and rectangle.

 

 

11.

If by any chance I press the wrong key the last selection is held in Select / Reselect.

Deselect is Cntrl + D.  You could of course, also use the history panel but you may have done some additional steps which would be then be lost.

Shift + Cntrl + D

 

12.

So if the background is a solid colour and you want to select the subject to invert the selection go to Select / Inverse

Shift + Cntrl + I

 

 

Colour

 

 

13

Rather than this red colour I would like my sweet pea to be a different colour.

Reselect

Shift + Cntrl + D

 

14

There are a number of different ways to recolour a selection.

Edit / Fill / Foreground Colour.  This produces a solid colour fill.  Which may be OK if we are after a silhouette effect.

 

 

15.

Another way, keeping some of the underlying texture, might be to change the blending mode and apply the colour in a more controlled way.  For example, Painting with the brush set in a colour mode.

 

 

There may well be other ways of doing the above.