Still, he was the very image of American people in his gleaming black shoes, gray overcoat, and new hat.
不过，他的皮鞋黑色，穿着灰色大衣，戴着崭新的帽子，是典型的美国人形象。
The new still image compression standard, JPEG2000, provides higher compression rates for the same visual quality for gray scale and color images than JPEG.
JPEG2000是一种新的静止图像压缩标准，与JPEG相比，对于具有同样视觉质量的灰度等级图像和彩色图像，JPEG2000能提供更高的压缩率。
If the image still exists in clumps of the noise, the noise replace the gray average of the three adjacent signal points.
如果图像中仍然存在人的噪声团块，则噪声用相邻的三个信号点的灰度均值替换。
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