midrange_imagemidrange_imageMidrangeImageMidrangeImagemidrange_image (算子名称)

名称

midrange_imagemidrange_imageMidrangeImageMidrangeImagemidrange_image — Calculate the average of maximum and minimum inside any mask.

参数签名

描述

该算子 midrange_imagemidrange_imageMidrangeImageMidrangeImageMidrangeImagemidrange_image forms the average of maximum and minimum inside the indicated mask in the whole image. Several border treatments (MarginMarginMarginMarginmarginmargin) can be chosen for filtering: gray value Pixels outside of the image edges are assumed to be constant (with the indicated gray value). 'continued' Continuation of edge pixels. 'cyclic' Cyclic continuation of image edges. 'mirrored' Reflection of pixels at the image edges. The indicated mask (= region of the mask image) is put over the image to be filtered in such a way that the center of the mask touches all pixels once.

For an explanation of the concept of smoothing filters see the introduction of chapter Filters / Smoothing.

注意

Note that filter operators may return unexpected results if an image with a reduced domain is used as input. Please refer to the chapter 过滤器.

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。
• 在图像通道级别自动并行化。
• Automatically parallelized on domain level.

参数表

read_image(Image,'fabrik')
draw_region(Region,WindowHandle)
midrange_image(Image,Region,Midrange,'mirrored')
dev_display(Midrange)

read_image(&Image,"fabrik");
draw_region(&Region,WindowHandle);
midrange_image(Image,Region,&Midrange,"mirrored");
disp_image(Midrange,WindowHandle);

read_image(Image,'fabrik')
draw_region(Region,WindowHandle)
midrange_image(Image,Region,Midrange,'mirrored')
dev_display(Midrange)

read_image(Image,'fabrik')
draw_region(Region,WindowHandle)
midrange_image(Image,Region,Midrange,'mirrored')
dev_display(Midrange)

read_image(Image,'fabrik')
draw_region(Region,WindowHandle)
midrange_image(Image,Region,Midrange,'mirrored')
dev_display(Midrange)

Complexity

For each pixel: O(sqrt(F) * 5) with F = area of MaskMaskMaskMaskmaskmask.

结果

If the parameter values are correct 该算子 midrange_imagemidrange_imageMidrangeImageMidrangeImageMidrangeImagemidrange_image 返回值 2 ( H_MSG_TRUE) . The behavior in case of empty input (no input images available) is set via 该算子 set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>). If necessary an exception is raised.

可能的前置算子

read_imageread_imageReadImageReadImageReadImageread_image, draw_regiondraw_regionDrawRegionDrawRegionDrawRegiondraw_region, gen_circlegen_circleGenCircleGenCircleGenCirclegen_circle, gen_rectangle1gen_rectangle1GenRectangle1GenRectangle1GenRectangle1gen_rectangle1

可能的后置算子

thresholdthresholdThresholdThresholdThresholdthreshold, dyn_thresholddyn_thresholdDynThresholdDynThresholdDynThresholddyn_threshold, regiongrowingregiongrowingRegiongrowingRegiongrowingRegiongrowingregiongrowing

可替代算子

sigma_imagesigma_imageSigmaImageSigmaImageSigmaImagesigma_image

参考其它

gen_circlegen_circleGenCircleGenCircleGenCirclegen_circle, gen_rectangle1gen_rectangle1GenRectangle1GenRectangle1GenRectangle1gen_rectangle1, gray_erosion_rectgray_erosion_rectGrayErosionRectGrayErosionRectGrayErosionRectgray_erosion_rect, gray_dilation_rectgray_dilation_rectGrayDilationRectGrayDilationRectGrayDilationRectgray_dilation_rect, gray_range_rectgray_range_rectGrayRangeRectGrayRangeRectGrayRangeRectgray_range_rect

References

R. Haralick, L. Shapiro; “Computer and Robot Vision”; Addison-Wesley, 1992, Seite 319

模块

Foundation