两个图像分割算法的研究与实现
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摘要
图像工程是近几年发展起来的一门学科,它的研究内容非常丰富,根据抽象程度和研究方法等的不同可分为三个层次:图像处理、图像分析和图像理解。
     图像分割是一种重要的和关键的图像分析技术,对图像目标进行提取、测量等都离不开它,图像分割的结果是图像特征提取和识别等图像理解的基础,对它的研究一直是图像技术研究中的热点和焦点。本文针对图像的分割问题进行了研究与实现。
     针对飞行物图像的特点,提出了一种新的基于边界特征的一维最大熵图像二值化分割方法,该方法可以自适应地选取阈值。实验表明,本方法可以克服目前已有的一维最大熵取阈值方法进行图像分割时,由于阈值取的太低而丢失细节信息的缺点,有效地保留了边界的细节特征。该算法简单,易于实现,执行速度快,特别适合于质量低和边缘模糊的图像。笔者对实验结果进行了详细的讨论,得出了有意义的结论。
     基于信息融合的观点,本文提出了融合灰度信息与纹理信息的图像分割方法,并且采取像素级融合技术,使得图像中的目标得到了增强。实验结果证明了算法的有效性。
Image engineering is a subject that has been developed in recent years, and it has many contents. According to the degree of abstract and the investigate methods, the research on it can be divided into three levels: image processing, image analysis and image comprehension.
    Image segmentation is a critical image analysis technique. It is necessary in the process of image object' s extraction and measurement. The result of the image segmentation is the basis of the feature extraction and pattern recognition. The research of the image segmentation is the hot spot and focus of the image technology. This paper make study of and implement the image segmentation.
    According to the character of the flyers, a one-dimension maximum entropy image binary conversion method based on edge features is proposed, which can implement adaptive threshold selection. Our experiments show that the new method overcomes the disadvantage of image segmentation with one-dimension maximum entropy and keeps the original edge features well. This method is simple. It is implementing. Especially, it is efficient for processing low quality and edge fuzzy images. We discuss the findings of the experiments in detail and draw good conclusions.
    Based on the idea of the information fusion, this paper proposes the image segmentation algorithm, which uses fusion of gray information and texture information. And it takes the pixel fusion technology. All this boosts up the image object. The validity of this algorithm is verified in the experiments.
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