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Knowledge Discovery                                                               Subject Enrichment

               To create your own pattern:
               (a)  Open an image and use the Rectangle Marquee tool to select
                   an area to be used as a pattern.
               (b)  Click the Edit menu and select Define Pattern.
               (c)  Enter a name for the pattern in the Pattern Name dialog box and click the OK button.


          Eraser Tool
          The Eraser tool erases unwanted areas of an image. It changes pixels to either match the background
          colour or transparent.
          To use the Eraser Tool:
            1.  Open a saved image.
            2.  In the Tools panel, select the Eraser     tool.
            3.  In the Options bar, do the following:
                                      3.1              3.2




                3.1 Select an eraser Mode – Brush, Pencil or Block.
                3.2 Set the values for Opacity and Flow.
            4.  Click and drag over the area you want to erase.











                                                           4


                               Original image                              Image after using Eraser tool
          Blur Tool
          The Blur tool lets you soften or blur an image or parts of an image.
          To use the Blur Tool:

            1.  Open a saved image.
            2.  In the Tools panel, select the Blur     tool.
            3.  In the Options bar, do the following:
                                                          3.1                          3.2




                3.1  Choose a brush tip and set the options for Mode and Strength.

                3.2  Select Sample All Layers to blur using data from all visible layers. Deselect this option to blur
                      using data from active layer only.


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