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研究生:張御廣
研究生(外文):Yu-Kuang Chang
論文名稱:低亮度影像與不均勻亮度影像之模糊加強演算法
論文名稱(外文):FUZZY IMAGE ENHANCEMENT FOR LOW ILLUMINATION IMAGE AND UNEVEN ILLUMINATION IMAGE
指導教授:汪順祥
指導教授(外文):Shuenn-Shyang Wang
口試委員:汪順祥
口試委員(外文):Shuenn-Shyang Wang
口試日期:2015-07-29
學位類別:碩士
校院名稱:大同大學
系所名稱:通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:英文
論文頁數:89
中文關鍵詞:模糊影像處理影像處理
外文關鍵詞:fuzzy imageimage enhancement
相關次數:
  • 被引用被引用:0
  • 點閱點閱:185
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
為了改善對於低照度影像以及照度不均影像,本論文各提出一個演算法對於低照度影像和照度不均影像做光線照度明暗的處理,之後再使用一個『基於邊緣檢測之適應性模糊影像增強』的方法做影像加強使得影像對比更加強。最後實驗結果證明,我們所提出的方法針對低照度影像和照度不均影像可以有較佳的增強效果並且也可以保留更多的細膩度。
In this thesis, Fuzzy image enhancement algorithms for low illumination image and uneven illumination image are proposed. The global brightness enhancement and the fuzzy contrast enhancement are performed for low illumination image. The uneven illumination enhancement and the fuzzy contrast enhancement are performed for uneven illumination image. The experimental results show that low illumination images and uneven illumination images can be effectively enhanced.
ACKNOWLEDGMENTS i
ABSTRACT ii
中文摘要 iii
LIST OF FIGURES vii
LIST OF TABLES xiii
CHAPTER 1 INTRODUCTION 1
1.1 Image Enhancement 1
1.2 Fuzzy image enhancement 1
1.3 Image enhancement for low illumination image and uneven illumination image 2
CHAPTER 2 OVERVIEW OF FUZZY IMAGE ENHANCEMENT 4
2.1 Introduction 4
2.1.1 Definition of Image in Fuzzy Theory 4
2.1.2 Fuzzy Domain and Membership Function 5
2.1.3 Contrast Intensification 6
2.1.4 The Inverse Transformation 7
2.1.5 The Drawbacks of Pal and King’s Algorithm 7
2.2.1 Normalization 8
2.2.2 A new membership function 8
2.2.3 A new contrast intensification operator 10
2.2.4 The inverse function 11
2.2.5 Transform the original RGB color modol to HIS color model 12
2.3 Experimental results 14
CHAPTER 3
IMAGE ENHANCEMENT FOR LOW ILLUMINATION IMAGE 28
3.1 Introduction 28
3.2 Proposed algorithm for low illumination gray image 30
3.2.1 Global brightness enhancement 31
3.2.2 The new mapping function 32
3.3 Proposed algorithm for low illumination color image39
CHAPTER4
IMAGE ENHANCEMENT FOR UNEVEN ILLUMINATION IMAGE 46
4.1 Introduction 46
4.2 Proposed algorithm for uneven illumination gray image 48
4.2.1 Uneven illumination enhancement 49
4.2.2 Mean filter 50
4.2.3 Uneven illumination enhancement 51
4.3 Proposed algorithm for uneven illumination color image 60
CONCLUSION 68
REFERENCES 69
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