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  • halcon案例学习之cbm_label_simple

    *cbm_label_simple 程序说明:
    *这个示例程序展示了如何使用基于组件的匹配来定位复合对象。在这种情况下,应该在图像中找到一个标签,用户既不知道其中的组件,也不知道它们之间的关系。因此,创建组件模型需要三个操作符:
    * 1) gen_initial_components
    * 2) train_model_components
    * 3) create_trained_component_model
    *最后,使用
    * 4) find_component_model

    dev_update_off ()
    dev_close_window ()
    *获取所有搜索图像
    list_image_files ('label', 'default', [], SearchImageFiles)
    SearchImageFiles := regexp_select(SearchImageFiles,'(label_[0-9]+.png)|(label_training_)')
    *读取并显示模型图像
    read_image (Image, 'label/label_model')
    get_image_size (Image, Width, Height)
    dev_open_window (0, 0, Width, Height, 'black', WindowHandle)
    dev_display (Image)
    *设置显示设置
    set_display_font (WindowHandle, 16, 'mono', 'true', 'false')
    dev_set_line_width (2)
    dev_set_draw ('margin')
    dev_set_color ('blue')
    *定义模型区域
    gen_rectangle1 (ModelRegion, 119, 106, 330, 537)
    *reduce_domain —缩小图像的域。
    reduce_domain (Image, ModelRegion, ModelImage)
    dev_display (ModelRegion)
    disp_message (WindowHandle, 'Model image and model region', 'window', 12, 12, 'black', 'true')
    disp_continue_message (WindowHandle, 'black', 'true')
    stop ()
    *获取训练图像
    *gen_empty_obj —创建一个空的对象元组
    gen_empty_obj (TrainingImages)
    for Index := 1 to 5 by 1
    read_image (TrainingImage, 'label/label_training_' + Index)
    *concat_obj —连接两个图标对象元组
    concat_obj (TrainingImages, TrainingImage, TrainingImages)
    endfor
    *自动提取初始组件
    * ---------------------------------------------
    *gen_initial_components —提取组件模型的初始组件
    gen_initial_components (ModelImage, InitialComponents, 40, 40, 20, 'connection', [], [])
    dev_set_line_width (1)
    dev_set_colored (12)
    dev_display (Image)
    dev_display (InitialComponents)
    disp_message (WindowHandle, 'Extracted initial components', 'window', 12, 12, 'black', 'true')
    disp_continue_message (WindowHandle, 'black', 'true')
    stop ()
    * 提取模型组件并训练关系
    * -----------------------------------------------------
    * (这可能需要几分钟!)
    *get_system —获取HALCON系统参数的当前值
    get_system ('pregenerate_shape_models', SavePregenerateShapeModels)
    *set_system —设置HALCON系统参数
    *pregenerate_shape_models 形状模型 此参数确定使用create_shape_model或create_scaled_shape_model
    *创建的形状模型是否已完全预先生成('true')。该参数主要用于在最少的代码更改下实现两种模式之间的切换。通常,仅需要插入或更改一行。
    *值:“ true”或“ false” 默认值:'false'
    set_system ('pregenerate_shape_models', 'true')
    *train_model_components —为基于组件的匹配训练组件和关系
    train_model_components (ModelImage, InitialComponents, TrainingImages, ModelComponents, 40, 40, 20, 0.85, -1, -1, rad(15), 'reliability', 'rigidity', 0.2, 0.5, ComponentTrainingID)
    set_system ('pregenerate_shape_models', SavePregenerateShapeModels)
    *训练结果可以写入文件,以便
    *结果可以在以后的程序中从文件中读取
    *执行和时间要求高的培训不需要再次执行。
    * write_training_components (ComponentTrainingID, 'train_label.ct')
    * read_training_components ('train_label.ct', ComponentTrainingID)
    dev_display (Image)
    dev_display (ModelComponents)
    disp_message (WindowHandle, 'Extracted model components', 'window', 12, 12, 'black', 'true')
    disp_continue_message (WindowHandle, 'black', 'true')
    stop ()
    *为计算出的关系添加小公差值,以覆盖训练图像中未出现的组件变化。
    *Modify_component_relations —修改训练结果中的关系
    modify_component_relations (ComponentTrainingID, 'all', 'all', 15, rad(5))
    * 根据训练结果创建组件模型
    * -------------------------------------------------------
    create_trained_component_model (ComponentTrainingID, -rad(30), rad(60), 10, 0.8, 'auto', 'auto', 'none', 'use_polarity', 'false', ComponentModelID, RootRanking)
    clear_training_components (ComponentTrainingID)
    *在运行时映像中查找组件模型
    for Index := 0 to |SearchImageFiles| - 1 by 1
    read_image (SearchImage, SearchImageFiles[Index])
    *find_component_model —查找图像中组件模型的最佳匹配
    find_component_model (SearchImage, ComponentModelID, RootRanking, -rad(30), rad(60), 0.5, 0, 0.5, 'stop_search', 'prune_branch', 'none', 0.6, 'least_squares', 4, 0.9, ModelStart, ModelEnd, Score, RowComp, ColumnComp, AngleComp, ScoreComp, ModelComp)
    dev_display (SearchImage)
    for Match := 0 to |ModelStart| - 1 by 1
    dev_display (SearchImage)
    *get_found_component_model —返回找到的组件模型实例的组件
    get_found_component_model (FoundComponents, ComponentModelID, ModelStart, ModelEnd, RowComp, ColumnComp, AngleComp, ScoreComp, ModelComp, Match, 'false', RowCompInst, ColumnCompInst, AngleCompInst, ScoreCompInst)
    dev_display (FoundComponents)
    endfor
    disp_message (WindowHandle, 'Found components in image ' + (Index + 1) + ' of 15', 'window', 12, 12, 'black', 'true')
    * 要不停止地运行程序,请取消激活以下行
    if (Index < |SearchImageFiles| - 1)
    disp_continue_message (WindowHandle, 'black', 'true')
    stop ()
    endif
    endfor
    *clear_component_model —释放组件模型的内存
    clear_component_model (ComponentModelID)

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  • 原文地址:https://www.cnblogs.com/future-zmy/p/14275646.html
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