bin_thresholdbin_thresholdBinThresholdBinThresholdbin_threshold (算子名称)

名称

bin_thresholdbin_thresholdBinThresholdBinThresholdbin_threshold — Segment an image using an automatically determined threshold.

警告

bin_thresholdbin_thresholdBinThresholdBinThresholdBinThresholdbin_threshold is obsolete and is only provided for reasons of backward compatibility. New applications should use 该算子 binary_thresholdbinary_thresholdBinaryThresholdBinaryThresholdBinaryThresholdbinary_threshold instead.

参数签名

描述

bin_thresholdbin_thresholdBinThresholdBinThresholdBinThresholdbin_threshold segments a single-channel gray value image using an automatically determined threshold. First, the relative histogram of the gray values is determined. Then, relevant minima are extracted from the histogram, which are used as parameters for a thresholding operation. In order to reduce the number of minima, the histogram is smoothed with a Gaussian, as in auto_thresholdauto_thresholdAutoThresholdAutoThresholdAutoThresholdauto_threshold. The mask size is enlarged until there is only one minimum in the smoothed histogram. The selected region contains the pixels with gray values from 0 to the minimum or for real images from the smallest value to the respective minimum. This operator is, for example useful for the segmentation of dark characters on a light paper.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 在元组级别自动并行化。
• Automatically parallelized on internal data level.

参数表

read_image (Image, 'letters')
bin_threshold (Image, Seg)
connection (Seg, Connected)

read_image(&Image,"letters");
bin_threshold(Image,&Seg);
connection(Seg,&Connected);
set_shape(WindowHandle,"rectangle1");
set_colored(WindowHandle,6);
disp_region(Connected,WindowHandle);

read_image (Image, 'letters')
bin_threshold (Image, Seg)
connection (Seg, Connected)

read_image (Image, 'letters')
bin_threshold (Image, Seg)
connection (Seg, Connected)

read_image (Image, 'letters')
bin_threshold (Image, Seg)
connection (Seg, Connected)

模块

Foundation