This algorithm improves the blemish which is not blind, at the same time it keeps from the block effect which brought in by changing too much of DC coefficients.

该算法改进了在DC系数中大都为非盲水印的缺点，同时避免了DC系数改变过大引起的块效应。

youdao

The voltage margin method for interchange power control was applied to the dc voltage control block (DC-AVR) and the active power control block (APR) in the terminal controller.

容压法电力交换控制已经应用于终端控制器的直流电压控制部分和有功功率控制部分。

youdao

The meaningful gray image is serially processed into watermark signal and embedded into the DC elements of the block DCT coefficient matrix of the host image.

该算法是先对有意义的灰度图像进行水印序列化处理后，再将其作为水印信号嵌入到载体图像的分块DCT系数直流分量里。

youdao

DC, now receives a block grant for welfare (a fixed sum based on the amount it received at the time of greatest need) from the federal government.

ECONOMIST: Welfare reform

Legend Airlines, a Dallas-based startup, met a similar block when it tried to fly DC-9s -- modified to seat 56 -- from Love Field to New York City and other major destinations.

FORBES: Dogfight