摘要
Alpha通道是图形图像学中的一个名词,其意思是采用8位二进制数存储于图像文件中代表各像素点透明度的附加信息.利用Alpha通道的透明特性能够创作出十分丰富的图像效果,不仅在多媒体作品,而且在电影、电视、动画等方面都有大量应用.文章通过对Alpha通道的介绍,有助于加深了解和认识它,使其更好地在多媒体和影视作品中发挥作用.
Alpha channel, a concept of graphics, refers to storing graphical files in the form of 8 - digit binary digits which represent additional information of the transparence of each PIX. Making use of the transparence characteristic of Alpha channel can create various graphic effects ; therefore, it is now being widely applied in multimedia software as well as films, TV and flashes. Through the introduction of Alpha channel, we can have a better understanding of it and apply it better in multimedia and TV productions.
出处
《中国医学教育技术》
2005年第6期472-475,共4页
China Medical Education Technology
