Photoshop Alpha通道抠图技术在数码照片后期处理中的应用  

Application of Photoshop Alpha Channel Matting Technology in Post-processing of Digital Photos

作　　者：秦伟[1] QIN Wei(Department of Information Engineering,Changzhi Vocational and Technical College,Changzhi 046000,China)

机构地区：[1]长治职业技术学院信息工程系,山西长治046000

出　　处：《广州城市职业学院学报》2020年第3期83-85,共3页Journal Of Guangzhou City Polytechnic

摘　　要：针对传统方法处理后的数码照片分辨率较低的问题,提出了Photoshop Alpha通道抠图技术在数码照片后期处理中的新方法。根据数码照片后期处理要求,首先运用加权平均法对数码照片进行灰度调整,将数码照片的RGB值调整成为相同的值。然后运用Photoshop Alpha通道抠图技术对数码照片进行背景切换,最后通过对数码照片进行锐化和滤镜处理,提高处理后数码照片的真实感和轮廓感,以此实现了对数码照片的后期处理。经实验证明,使用本文提出方法处理得到的照片具有较高的分辨率。Aiming at the problem of low resolution of digital photos processed by traditional methods,a new method of Photoshop alpha channel cutout technology in digital photo post-processing is proposed.According to the post-processing requirements of digital photos,the weighted average method is first used to adjust the gray scale of the digital photos,and the RGB values of the digital photos are adjusted to the same value.Then use Photoshop Alpha channel cut-out technology to switch the background of the digital photo,and finally sharpen and filter the digital photo to improve the sense of realism and contour of the digital photo after processing,so as to realize the post-processing of digital photos.Experiments show that the photos processed by the method proposed in this paper have a higher resolution.

关 键 词：Photoshop Alpha通道抠图技术 数码照片 后期处理 加权平均法 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]