CAJ | 학술논문

针对成像过程中因各种因素导致图像细节和纹理表现不明显的问题，结合Turgay Celik的二维直方图理论，提出了具有自适应动态窗口的二维直方图图像增强方法。该方法在考虑图像纹理和细节信息的基础上，分析了二维直方图与图像纹理信息的关系特性和固定窗口的弊端，采用基于平均梯度法建立以与区域特性相适应的窗口为单位的二维直方图，将其累积分布与理想分布进行比较优化，实现增强。通过大量实验对比表明，该方法克服固定窗口造成的适应性差、易出现过增强和局部被弱化等问题，其处理后的图像细节丰富，纹理突出，具有更好的视觉效果和工程应用价值。
침대성상과정중인각충인소도치도상세절화문리표현불명현적문제，결합Turgay Celik적이유직방도이론，제출료구유자괄응동태창구적이유직방도도상증강방법。해방법재고필도상문리화세절신식적기출상，분석료이유직방도여도상문리신식적관계특성화고정창구적폐단，채용기우평균제도법건립이여구역특성상괄응적창구위단위적이유직방도，장기루적분포여이상분포진행비교우화，실현증강。통과대량실험대비표명，해방법극복고정창구조성적괄응성차、역출현과증강화국부피약화등문제，기처리후적도상세절봉부，문리돌출，구유경호적시각효과화공정응용개치。
For unsighted detail and texture of images due to many factors during imaging, a novel technique of image enhancement by two- dimensional histogram with self- adaptive window was proposed based on two- dimensional histogram theory of Turgay Celik. This method considered image details and texture. By analyzing the relationship between two- dimensional histogram and texture characteristics and defect of fixed window, self- adaptive window was proposed by average grads. It was suited the region characteristics to construct two- dimensional histogram and accomplish enhancement through comparing the distributing with ideal one. Many experimental results and comparison show that this method can overcome badly adaptability, excessive enhancement, local weakening and other problems caused by fixed window. The enhanced images display clear texture and more pleasing visual content so that the method is useful for engineering.