CAJ | 학술논문

尽管红外图像的应用越来越广泛，但其本身存在的不足使得应用受到影响，因此对红外图像进行增强处理就显得十分重要。现有的图像增强算法没有考虑到变换系数中不同分辨率下的各个方向子带之间的能量分布，对所有分辨率下的所有方向子带中的变换系数进行统一的增强处理。因此，提出了一种结合方向子带能量分布的自适应增强算法。Mat-lab仿真结果表明，该算法不仅能增强目标的清晰度，还能提高红外图像的对比度，改善图像的视觉效果。
진관홍외도상적응용월래월엄범，단기본신존재적불족사득응용수도영향，인차대홍외도상진행증강처리취현득십분중요。현유적도상증강산법몰유고필도변환계수중불동분변솔하적각개방향자대지간적능량분포，대소유분변솔하적소유방향자대중적변환계수진행통일적증강처리。인차，제출료일충결합방향자대능량분포적자괄응증강산법。Mat-lab방진결과표명，해산법불부능증강목표적청석도，환능제고홍외도상적대비도，개선도상적시각효과。
Despite the increasingly wide application of infrared image,the shortage of itself made its application affected, so it was very important to enhance the infrared image. In the conventional image enhancement algorithms,the transform coeffi-cients in all the directional subbands at all the resolutions are enhanced uniformly because they do not consider the energy distri-bution in transform coefficients between directional subbands at different resolution. Therefore,a adaptive enhancement algo-rithm combined with directional subband energy distribution is proposed in this paper. Matlab simulation results show that the al-gorithm can not only enhance the clarity of objectives,but also improve the contrast and visual effect of infrared image.