2.6.4.2 imgAutoBinary

Menu Information

Image: Conversion: Auto Binary

Brief Information

Auto convert image to binary

Additional Information

X-Function not designed for Auto GetN Dialog.

Command Line Usage

1. imgAutoBinary img:=mat(1) oimg:=mat(2);

Variables

Display
Name
Variable
Name
I/O
and
Type
Default
Value
Description
Input Matrix img

Input

Image

<active>

Specifies the input image. The default input is the active image.

Output Image oimg

Output

Image

<input>

Specifies the output image. By default, the output image is the same as the input image.

See the syntax here.

Description

This X-Function converts the input image into a binary image automatically. The threshold used to perform the conversion is calculated based on statistical features of the input image.

This X-Function works best with gray images. If the input image is a color image, each channel of it will be separately binarized.

Note that this X-Function does not have a dialog.

Examples

In this example, we use the imgAutoBinary function to convert the input image to a binary image:

  1. When the input image is active, select Image: Conversion: Auto Binary. This performs the conversion and the input image is modified.
ImgAutoBinary help English files image002.jpg
ImgAutoBinary help English files image004.jpg
The original image
The output image


Algorithm

The computation uses L_AutoBinaryBitmap() function from LEADTOOLS Main API. Please refer to the LEADTOOLS Main API Help file, Version 14 and read the L_AutoBinaryBitmap topic.

References

LEADTOOLS Main API Help file, Version 14

Related X-Functions

imgBinary, imgC2gray