2.6. Select By Color

図14.24 Select by Color tool icon in the Toolbox

Select by Color tool icon in the Toolbox

The Select by Color tool is designed to select areas of an image based on color similarity. It works a lot like the Fuzzy Select tool (Magic Wand). The main difference between them is that the Magic Wand selects contiguous regions, with all parts connected to the starting point by paths containing no large gaps; while the Select by Color tool selects all pixels that are sufficiently similar in color to the pixel you click on, regardless of where they are located.

2.6.1. Activating the tool

You can access the Select by Color Tool in different ways:

  • From the image menu bar ToolsSelection ToolsBy Color Select,

  • by clicking on the tool icon in the ToolBox,

  • by using the keyboard shortcut Shift +O.

2.6.2. Key modifiers (Defaults)

The select by color tool does not have any special key modifiers, only the ones that affect all selection tools in the same way. See Selection Tools for help with these.

2.6.3. Handling tool

図14.25 Using Select by Color tool: selected pixels are not only contiguous

Using Select by Color tool: selected pixels are not only contiguous

As with fuzzy tool, the selection starts as soon as you click and the reference is the first clicked pixel. If you click and drag, you can change the threshold by the same way as with the fuzzy tool.

To move the selection see Moving selections.

2.6.4. Options

図14.26 Tool Options for the Select by Color tool

Tool Options for the Select by Color tool

一般的にはこのツールを起用すると、 そのツールオプションがツールボックスの下に繋げられたウィンドウ上に現れます。 そのようなウィンドウが見あたらないときは、 画像ウィンドウのメニューより ウィンドウドッキング可能なダイアログツールオプション と辿れば今使っているツールのツールオプションウィンドウが開きます。

[注記] 注記

See Selection Tools for help with options that are common to all these tools. Only options that are specific to this tool are explained here.

Mode; Antialiasing; Feather edges

Common select options.

Similar colors

All these options work exactly the same way, they were described for the fuzzy selection already. See for 「Options」 details.