The COLLAGEKHOROS Link Planning for Image Processing Tasks

第28卷第3期2021年3月Vol.28No.3Mar.2021电光与控制Electronics Optics&Control引用格式:胡易，邹立，咎世良，等•基于暗通道和伽马变换的水下图像增强[J]・电光与控制,2021,28(3)：81-85.HU Y,ZOU L,ZAN S L,et al. Underwater image enhancement based on dark channel and Gamma transfbrm[J].Electronics Optics&Control,2021,28(3)：81-85.基于暗通道和伽马变换的水下图像增强胡易，邹立，咎世良，曹芳芳，赵猛(山东科技大学电气与自动化工程学院，山东青岛266590)摘要：光在水下传播存在吸收和散射现象，导致水下图像颜色失真、对比度低。

为此,提出了一种基于暗通道先验和伽马变换的水下图像增强算法。

首先，在RGB空间利用暗通道先验估计水下图像透射率和大气光照值，加权处理后得到自适应补偿参数，进而对图像颜色校正。

在此基础上，将增强后的RGB图像转化到HSV颜色空间，对V通道进行自适应伽马变换，提高图像的对比度。

最后，在公用水下图像增强数据集(RUIE)上进行实验，并与现有增强算法进行比较。

实验结果表明，所提算法显著提高了水下图像的视觉质量,优于其他相关算法。

关键词：水下图像增强；暗通道；伽马变换；颜色校正中图分类号：TP391.41文献标志码：A dot:10.3969/j.issn.1671-637X.2021.03.016Underwater Image Enhancement Based on DarkChannel and Gamma TransformHU Yi,ZOU Li,ZAN Shiliang,CAO Fangfang,ZHAO Meng (School of Electrical and Automation Engineering,Shandong University of Science and Technology,Qingdao266590,China) Abstract:The phenomenon of absorption and scattering exists in underwater propagation of light,which may lead to the color distortion and low contrast of the underwater images.For this reason,an underwater image enhancement algorithm based on dark channel prior and Gamma transform is proposed.First of all,the underwater image transminance and atmospheric illumination are estimated by dark channel prior in RGB space,and the adaptive compensation parameters are obtained after weighted processing.Then,the image color is corrected.On this basis,the enhanced RGB image is transformed into HSV color space,and adaptive Gamma transform is carried out to the V-channel,thus to improve the contrast of the image.Finally, experiments are carried out on the public underwater image enhancement dataset of RUIE,and comparison is made with the existing enhancement algorithms.The experimental results show that the proposed algorithm significantly improves the visual quality of underwater images and is better than the other algorithms.Key words:underwater image enhancement；dark channel；Gamma transformation；color correctiono引言海底资源勘探、水下设施维修、海洋救援、水下目标的检测与跟踪⑴等工作需要借助大量的图像数据。

Reduces significantly the amount of data, Filters out useless information, Preserves the important structural properties
Our goal is to extract a “line drawing” representation from an image
by alignment of two images that may have been acquired at separate times or from different sensors
Ideal and Ramp Edges
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because of optics, sampling, image acquisition imperfection
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Digital artists use it to create image outlines. The output of an edge detector can be added1Βιβλιοθήκη EDGE DETECTION
Edge Detection
Edges characterize boundaries of objects in image
A fundamental problem in image processing Edges are areas with strong intensity contrasts A jump in intensity from one pixel to the next Edge detected image

ChatGPT在PPT幻灯片设计中的图像处理与可视化呈现技术探索（英文中文双语版优质文档）Exploration of ChatGPT's image processing and visual presentation technology in PPT slide design (English and Chinese bilingual version high-quality documents) Exploration of image processing and visual presentation technology in PPT slide designSummaryThis research explores the image processing and visual presentation technology in ChatGPT-based PPT slide design. We introduce the application of ChatGPT in image processing and visualization, and propose some innovative technical explorations. Through experiments and user feedback, we evaluate the effectiveness and feasibility of these techniques in PPT slide design. Based on the research results, we discuss the advantages and challenges of ChatGPT in image processing and visualization, and look forward to future development directions.1 IntroductionPPT slides are a common information display tool, in which image processing and visual presentation play an important role in improving the slideshow effect and attractiveness. In recent years, artificial intelligence technologies such as ChatGPT have been applied to PPT slide design, providing new possibilities and innovative image processing and visualization technologies.2. Application of ChatGPT in image processingChatGPT can assist image processing tasks in PPT slide design. It has capabilities such as image recognition, semantic understanding, and idea generation, which can automatically generate and optimize image elements in slides.3. Application of ChatGPT in visual presentationChatGPT can also assist the visual presentation of PPT slides. It can understand text descriptions and data information, and generate corresponding charts, graphics and animation effects to better display and convey information.4. Technology exploration and empirical researchIn order to explore ChatGPT's image processing and visual presentation technology in PPT slide design, we conducted a series of technical exploration and empirical research. We designed experimental scenarios and tasks, and used ChatGPT to assist in image processing and visualization.4.1 Exploration of image processing technologyWe explore ChatGPT-based image processing techniques, including image recognition, image style transfer, and image generation. Through the image understanding and generation capabilities of ChatGPT, we try to automatically generate and optimize image elements in slideshows, and evaluate their effects and feasibility.4.2 Exploration of visual presentation technologyWe also explored ChatGPT-based visual presentation techniques, including data visualization, chart generation, and animation effect design. Through the semantic understanding and idea generation capabilities of ChatGPT, we try to generate optimizedVisualizations and assess their impact on slide presentations.5. Results and DiscussionBased on the analysis of experiments and user feedback, we draw the following conclusions:5.1 Effect evaluation of image processing technologyThe image processing technology assisted by ChatGPT can provide fast and high-quality image generation and optimization effects. Presenters can more easily use image elements in PPT slide design, and customize and modify them as needed.5.2 Visual presentation technology effect evaluationChatGPT-assisted visualization technology can generate attractive and readable charts, graphs and animation effects. These effects help improve your slideshow's messaging and audience engagement.6. Advantages and challenges of ChatGPT in image processing and visualizationBased on the result analysis, we discuss the advantages and challenges of ChatGPT in image processing and visualization. Benefits include quickly generating and optimizing images, providing personalized visualizations, and more. Challenges include limitations on the ability to understand and generate domain-specific knowledge.7. Development direction and future prospectIn order to further develop the image processing and visualization technology of ChatGPT in PPT slide design, we propose the following development directions: First, further optimize the ChatGPT model to improve image understanding and generation capabilities; second, combine user feedback and personalized needs to realize More precise image processing and visualization.8. SummaryThis research explores the image processing and visual presentation technology in ChatGPT-based PPT slide design. Through technology exploration and empirical research, we evaluate the effectiveness and feasibility of these technologies and discuss their advantages and challenges. Future research can further develop and improve these techniques to enhance the design quality and user experience of PPT slides.PPT幻灯片设计中的图像处理与可视化呈现技术探索摘要本研究探索了基于ChatGPT的PPT幻灯片设计中的图像处理与可视化呈现技术。

新高二开学摸底考试英语A卷（新高考卷区专用）- 2023~2024学年新高二英语暑假作业（教师版）学校:___________姓名：___________班级：___________考号：___________第一部分听力（共两节，满分30 分）第二部分阅读(共两节, 满分50分)第一节(共15小题；每小题2.5分, 满分37.5分)阅读下列短文, 从每题所给的A、B、C、D四个选项中选出最佳选项。

ABlakeville community collegeDrawing workshopThis course is a bridge for people who already like to draw to get to the next level. You’ll beintroduced to methods used by contemporary artists. For the first session (节), please bring yourown paper, pencil and eraser. Held on Saturday evenings between 7:00 p.m.-9:00 p.m., 25 June-23July.Cost: $180Barista (咖啡师) courseLearn to make every coffee on a café menu. This course offers eight hours of hands-onclassroom delivery. Take our intensive (强化的的) course on Saturday 25 June or join our weeklytwo-hour sessions on Thursdays at 6:30 p.m.-8:30 p.m.You’ll learn to use various coffee machines and present coffee like a professional.Each student has their own machine.Cost: $290 ($10 off each when you book for two students)Budgeting (编制预算) for beginnersThis course will show you how to make a budget and stick to it. You’ll learn to manage yourmoney. These workshops run over three nights: Thursdays 7:30 p.m.-9:00 p.m., starting from 23June. Bring a friend at no additional cost.Cost: $90Leadlighting and stained glass (彩色玻璃)Learn the art of glass cutting and leadlighting as you make a project of your choice. Suppliesare included in the cost and glass-cutters may be taken home, to be returned the following session.Runs Fridays 6:30 p.m.-9:00 p.m. from 24 June-22 July.Cost: $3201．When is the drawing workshop offered?A．Fridays 6:30 p.m.-9:00 p.m., 24 June-22 July.1B．Saturdays 7:00 p.m.-9:00 p.m., 25 June-23 July.C．Thursdays 6:30 p.m.-8:30 p.m, starting from 21 July.D．Thursdays 7:30 p.m.-9:00 p.m., starting from 23 June.2．Which of the following courses costs the least?A．Barista course.B．Drawing workshop.C．Budgeting for beginners.D．Leadlighting and stained glass.3．What can you do if you take the leadlighting and stained glass course?A．Bring a friend for free.B．Borrow their glass-cutters.C．Buy art supplies at a low price.D．Choose their intensive course or weekly ones.【答案】1．B 2．C 3．B【导语】本文是应用文。