Select By Color Tool

* This Select by color tool is an alternate to the fuzzy selection tool.
* The By Color selection takes all the pixels with similar colour despite of where they are placed but the fuzzy selection tool selects portion without any gaps.
* As the fuzzy selection tool and by color selection tools are one and the same, the subsidiary options of these tools are also the same.
How to Launch:
- Open Gimp.
- Launch a new image file.
- Now choose Select By Color Tool from the toolbox.

* Shortcut for this tool is Shift+O. Click the Toolbox and then press the button Shift+O.
Tool options:

Modes - It determines the way of creating the selection, i.e. whether it will be combined with existing one, etc.
Antialiasing - It causes the portion of the selection to be drawn smoother.
Feather edge - It causes the portion of the selection to be blurred.
Select Transparent Areas - It gives the ability to select areas which are completely transparent.
Sample merged - It creates a selection from actual image, instead from the active layer.
Threshold - It determines the range of colours.
Select by - It select, which component shall be used for calculating the similarity.
How to Use:
- Now pick the Select by color tool. Then decide the color, which you want to select by color for e.g. Red.

- Just drag the mouse over the red color portion on the image. Note that if any portion of image (red color portion) is selected, then automatically its related colored portion in the image gets selected.

- Once selected, just cut or copy the selected portion.
- Create a new file and then paste the selected portion. Only the selected color will be pasted in the new file.
- In the below image, the chosen "Red" color is removed from the image.

- Finally, click "File -> Save" to "Save" the file.