复杂场景下图像复制-移动篡改检测

Detection method for copy-move forgery under complex scene

结合基于块匹配和基于点匹配算法优点,提出复杂场景下(平坦区域和非平坦区域都有篡改)图像复制-移动篡改检测方法。通过关键点检测出非平坦区域的篡改,计算平坦区域,对平坦区域图像分块并提取FMT特征,通过相似块的匹配确定平坦区域的篡改,获得整个图像的篡改区域。实验结果表明,该方法具有很好的鲁棒性和稳健性,在计算速度上也具有明显的优势。

Combining the thinking of the existing methods, including blockmatching and key point matching based methods, a method to tackle this problem under complex scene in which images are tampered in both flat region and nonflat region is presen ted. First, the forgery in nonplat region through key point features is detected. Then, the flat region in images is detected, and FMT features are extracted after blocking the region. Finally, image forgery in flat region is determined using matching algo rithms of similar blocked images, and the entire image tamper detection is achieved. Experimental results are presented to dem onstrate the effectiveness of the proposed method.