【多选题】下列有关频率域图像处理的说法正确的是____。
A.
频率域图像处理以傅里叶变换为基础,也即先通过傅里叶变换把图像从空间域变换到频率域,然后用频率域方法对图像进行处理,处理完后再利用傅里叶反变换把图像变换回空间域。
B.
一幅图像的灰度平均值可由DFT(离散傅里叶变换)在原点处的值求得。
C.
一幅大小为M×N的图像,其图像傅里叶频谱关于(M/2,N/2)的对称。
D.
傅里叶变换可将空间域中复杂的卷积运算转化为频率域中简单的乘积运算,对于某些在空间域中难于处理或处理起来比较复杂的问题,可达到简化处理和分析的目的。
【单选题】证券公司从事自营业务,应当遵守的规定()。I.真实、合法的资金和账户II.业务隔离III.明确授权IV.风险监控
【单选题】Draft 2 Members of Tribewanted.com have collaborated to create virtual and real-life communities all over the world. The founders of the website are Ben Keene and Mark James. In 2006 , James came up w...
A.
a. deleted unrelated information
B.
b. corrected a verb form
C.
c. added a concluding sentence
D.
d. added details to explain an idea
【单选题】“正在心下,按之则痛”是下列何证的主证:
【单选题】《晏子春秋·内篇·问篇》记载了关于廉政的对话,下列说法错误的是()。
B.
像石头一样的廉政,会伤害老百姓的利益,不可能长久
D.
孔子和晏子的这段对话,论述了怎样的廉政对百姓有益
【单选题】Draft 2 Members of Tribewanted.com have collaborated to create virtual and real-life communities all over the world. The founders of the website are Ben Keene and Mark James. In 2006 , James came up w...
A.
a. deleted unrelated information
B.
b. corrected a verb form
C.
c. added a concluding sentence
D.
d. added details to explain an idea
【简答题】听力原文:In 1986, there were over 40 million computers in the world, while by 2006, that number climbed to about 800 million—a twenty-fold increase in two decades. (52)
【单选题】Windows 2000中创建隐藏的共享文件夹需要在共享名称的后面加符号是 ( )
【单选题】“正在心下,按之则痛”是下列何证的主证:
【简答题】《晏子春秋·内篇·问篇》记载了关于廉政的对话,下列说法错误的是