Binarization

Command

Binary
Binarization

Description

Converts an image to a binary image by converting all pixels within user-selected threshold values to red and those outside to white.

Dialog box

The dialog box displays a histogram of gray levels.

Histogram dialog

In the histogram you drag the red lines to the required threshold values.

Usually, the lower threshold value line will be left at zero.

All gray levels within the threshold values will become red (indicating an object), those outside white (indicating background).

Click Preview to judge the results.

Click OK to proceed.

Example

Before: After:
Original image Image after binarization

See also

 

 

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