Methods of Image Retrieval Based on Improved Edge Histogram
Chen Chu · Computer Technology and Development · 2007
Because people's vision is not sensitive to the slight edge that participated in matching,making use of gray edge histogram to retrieval image has an effect on the result.An approach to retrieve image based on improved gray edge histogram is proposed in this paper.According to image segmentation based on threshold value,the image has been divided into target and background.Only the main information of edge between target and background is extracted by means of gradient operator.Without the adverse effect of the edge inside target or background,so this approach is more suitable for visual characteristic.Experiment results improved that this improved approach is better than that based on gray edge histogram.