A new techinque for color based image retrieval is proposed. In this technique, the whole spectrum of a color image is divided into several sub ranges according to human visual characteristics. Then for each sub ra...A new techinque for color based image retrieval is proposed. In this technique, the whole spectrum of a color image is divided into several sub ranges according to human visual characteristics. Then for each sub range, the cumulative histogram is used for similarity matching. It is shown that the color contents of image can be well captured by the sub range cumulative histogram. The new technique has been tested and compared with conventional techniques with the help of a database of 400 images of real flowers, which are quite complicated in color contents. Some satisfactory retrieval results are presented.展开更多
The paper mainly deals with the basic concept,characteristics and methods of the color and shape based image retrieval.It gives several quantization algorithms for image retrieval.At the same time,Otsu method that sel...The paper mainly deals with the basic concept,characteristics and methods of the color and shape based image retrieval.It gives several quantization algorithms for image retrieval.At the same time,Otsu method that selects the image threshold automatically and a new method using information entropy are described.展开更多
文摘A new techinque for color based image retrieval is proposed. In this technique, the whole spectrum of a color image is divided into several sub ranges according to human visual characteristics. Then for each sub range, the cumulative histogram is used for similarity matching. It is shown that the color contents of image can be well captured by the sub range cumulative histogram. The new technique has been tested and compared with conventional techniques with the help of a database of 400 images of real flowers, which are quite complicated in color contents. Some satisfactory retrieval results are presented.
文摘The paper mainly deals with the basic concept,characteristics and methods of the color and shape based image retrieval.It gives several quantization algorithms for image retrieval.At the same time,Otsu method that selects the image threshold automatically and a new method using information entropy are described.