具体来说,Halcon histo_to_thresh原理是通过对图像的灰度直方图进行分析,找出其中的峰值点,并将其作为阈值进行二值化处理。通常情况下,图像的灰度直方图可以显示出不同灰度级别的像素点的数量分布情况,其中峰值点表示像素点数量最多的灰度级别。 在Halcon中,可以通过调用histo_to_thresh函数来实现对图像的灰度直方图的分...
gen_region_histo 将使用 gray_histo、gray_histo_range 或 tuple_histo_range 创建的直方图转换为区域。 三个控制参数的作用与disp_image和set_paint中相同。
gray_histo (Image, Image, AbsoluteHisto, RelativeHisto) *将直方图转换为区域(包含直方图的区域;输入的直方图;直方图中心的行/列坐标;直方图的比例因子) gen_region_histo (Region, AbsoluteHisto, 255, 255, 1) *利用直方图获取阈值 histo_to_thresh (AbsoluteHisto,10, MinThresh, MaxThresh) *期望阈值 TarGe...
histo_to_thresh— Determine gray value thresholds from a histogram.Signaturehisto_to_thresh( : : Histogramm, Sigma : MinThresh, MaxThresh) Descriptionhisto_to_thresh determines gray value thresholds from a histogram for a segmentation of an image using threshold. The thresholds returned are 0, ...
threshold (Image, Region, MinThresh, MaxThresh) 根据灰度直方图分割图像,此算子与histo_to_thresh 类似 auto_threshold(Image : Regions : Sigma : )//Sigma 为平滑系数 二进制阈值,只能用于具有双峰直方图的图像。bin_threshold算子的更新版 binary_threshold(Image : Region : Method, LightDark : UsedThreshold...
histo_to_threshcan process the absolute and relative histograms that are returned bygray_histo. Note, however, that here only byte images should be used, because otherwise the returned thresholds cannot easily be transformed to the thresholds for the actual image. For images of type uint2, the...
gen_region_histo (Region, AbsoluteHisto,255,255,1)*利用直方图获取阈值histo_to_thresh (AbsoluteHisto,10, MinThresh, MaxThresh)*全局阈值分割threshold (Image, Region1, MinThresh, MaxThresh) 2,自动全局阈值分割 binary_threshold(Image : Region : Method, LightDark : UsedThreshold) ...
2、对原始图像进行傅里叶变换'to_fre' 3、用之前的积卷对图像做积卷滤波 4、傅里叶反变换‘from_fre’ 二值化算子与例程 auto_threshold dyn_threshold var_threshold binary_threshold fast_threshold fast_threshold_vs_threshold histo_to_thresh
8. histo_ to_ thresh 功能:根据直方图决定灰度值门限。 9. threshold 功能:利用全局阀值分割图像。 10. threshold_ sub_ pix 功能:根据子像素的准确性从一副图像中提取水平(平坦)交叉口。 11. var_ threshold 功能:根据局域平均标准偏差分析将图像二值化。 12. zero_ crossing 功能:从一幅图像中提取零相交...
2、对原始图像进行傅里叶变换'to_fre' 3、用之前的积卷对图像做积卷滤波 4、傅里叶反变换‘from_fre’ 二值化算子与例程 auto_threshold dyn_threshold var_threshold binary_threshold fast_threshold fast_threshold_vs_threshold histo_to_thresh