Construct a Systematic Image Enhancement of Low Contrast Image
| Autor: | Yueh-Shia Chou, 周月霞 |
|---|---|
| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 The detection technology is improved and developed continuously by electronic products. There are many researches is used image enhancement not only the detection more efficiently, but also apply to develop new method. The method of image enhancement is decided by experience. This situation spent a lot of time to develop about the detection. The study is constructed a decision rule for image enhancement and can be get the preliminary result with our research in the shorter time. To shorten the time of chose the image enhancement, this research proposed three stage decision indexes for the electronic products. First, this stage is to separate image into space domain or frequency domain. Second, the lower control limit is used to be chosen enhancement technology in the space domain. Then, the threshold is applied to this stage that constructed enhancement technology in the frequency domain. This study is constructed enhancement routing is trained by 58 images that, and tested by 30 images. Finally, we calculated the contrast value and analyzed those data by using Boxplot and Paired-t. The contrast value of research results is significant statistically with p-value is smaller than 0.05. Thus this research can improve the contrast effectively. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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