摘要：【中文】本发明提供一种PDF文件中字符转曲线的方法及装置，通过识别PDF文件中待转换字符的字体类型；根据所述字体类型从对应的字库中获取所述待转换字符的字符描述；根据所述字符描述获取对应的PDF描述中的曲线信息，并将所述曲线信息写入所述PDF文件的内容流。本发明的方法能够实现快速、准确的将PDF文件中字符转换成曲线，达到避免PDF文件中的字符被替换的目的。 【EN】The invention provides a method and a device for converting characters into curves in a PDF (portable document format) file, which are used for identifying the font type of characters to be converted in the PDF file; acquiring the character description of the character to be converted from a corresponding word stock according to the font type; and acquiring curve information in the corresponding PDF description according to the character description, and writing the curve information into a content stream of the PDF file. The method can realize the fast and accurate conversion of the characters in the PDF file into the curve, and achieves the purpose of avoiding the characters in the PDF file from being replaced.

摘要：【中文】本发明实施例提供一种图像缺陷检测方法、装置、电子设备及存储介质，其中，该方法包括：首先将待测图像与模板图像进行匹配，确定模板图像中的纹理丰富区域在待测图像中的配准位置，根据配准位置对待测图像进行校正；对校正后的待测图像与模板图像进行基于人眼视觉的RGB三通道敏感度加权的动态阈值差分比对，得到差分图像；根据差分图像，对待测图像进行形态学缺陷标记，获得与待测图像对应的缺陷标记图。本发明基于人眼感知色彩差异的视觉特性，将人眼对RGB三原色的敏感度经验值以权值的形式引入差分比对中，得到差分图像，进一步采用上述差分图像对待测图像进行形态学缺陷标记，使得与待检测图像对应的缺陷标记图更加符合人类行为特征。 【EN】The embodiment of the invention provides an image defect detection method, an image defect detection device, electronic equipment and a storage medium, wherein the method comprises the following steps: firstly, matching an image to be detected with a template image, determining the registration position of a texture-rich area in the template image in the image to be detected, and correcting the image to be detected according to the registration position; carrying out dynamic threshold difference comparison on the corrected image to be detected and the template image based on RGB three-channel sensitivity weighting of human vision to obtain a difference image; and according to the difference image, performing morphological defect marking on the image to be detected to obtain a defect marking image corresponding to the image to be detected. Based on the visual characteristic that human eyes perceive color difference, the invention introduces the sensitivity empirical value of human eyes to RGB three primary colors into a difference comparison pair in the form of weight to obtain a difference image, and further adopts the difference image to carry out morphological defect marking on the image to be detected, so that the defect marking image corresponding to the image to be detected is more in line with the human behavior characteristic.

摘要：【中文】本发明公开了一种河湖底泥板框压滤脱水方法，河湖底泥泥浆经除渣后进入输泥管线，与絮凝剂混合后进入浓缩池进行泥水分离，上清液浊度满足要求后输送至余水处理系统；泥浆达到一定浓度后进入搅拌罐，加入助滤剂，充分搅拌；充分反应后，泥浆进入板框压滤机，压滤脱水完成后，通入压缩空气清理压滤槽，然后卸除泥饼，尾水输送回浓缩池。本发明的助滤剂是环保型助滤底泥调理剂，可有效加速泥水分离，不影响泥水的pH值，大幅降低调理剂投加量，经泥水分离后的底泥可用于回填土或绿化种植土，实现河湖底泥的资源化和可持续利用；另外，由空压机通入压缩空气清理管道，空压机在提供压力的基础上增加了辅助清理压滤槽的功能，充分利用已有设备和能源。 【EN】The invention discloses a plate-frame filter-pressing dehydration method for river and lake bottom mud, which comprises the steps of deslagging river and lake bottom mud, then feeding the sludge into a mud conveying pipeline, mixing the sludge with a flocculating agent, then feeding the sludge into a concentration tank for sludge-water separation, and conveying supernatant to a residual water treatment system after the turbidity meets the requirement; after the slurry reaches a certain concentration, the slurry enters a stirring tank, and a filter aid is added and fully stirred; after full reaction, the slurry enters a plate-and-frame filter press, compressed air is introduced to clean a filter press tank after filter pressing and dehydration are finished, then mud cakes are removed, and tail water is conveyed back to a concentration tank. The filter aid is an environment-friendly filter-aid bottom mud conditioner, can effectively accelerate mud-water separation, does not influence the pH value of mud and water, greatly reduces the dosage of the conditioner, and can be used for backfilling soil or planting green soil after mud-water separation, thereby realizing the resource and sustainable utilization of river and lake bottom mud; in addition, the compressed air is introduced into the cleaning pipeline through the air compressor, the air compressor is additionally provided with the function of auxiliary cleaning of the filter pressing tank on the basis of providing pressure, and the existing equipment and energy are fully utilized.