The gray-level image of solid woven fabrics is captured by a color scanner and converted into digital files, then enhanced images are obtained by a gray-level morphological operation.

用彩色扫描仪输入紧密织物组织的灰度图像并将其转换为数字文件，然后通过灰度图像形态学处理获得增强图像。

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Any overall color other than gray as described above, such as red, brown, solid black, white or other solid color, disqualifies.

除了灰色以外的其它颜色，象红色、棕色、纯黑色、白色或其它颜色都属于失格。

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Short, smooth and sleek, solid color, in shades of mouse-gray to silver-gray, usually blending to lighter shades on the head and ears.

短、平顺、且光滑，纯色，从鼠灰色到银灰色，通常头部和耳朵的颜色比较浅。

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Eerier yet is Robert Moskowitz's "Skyscraper, " from 1998, which presciently depicts the matching behemoths as two solid-black fields of color dark shadows set against a bleakly gray sky.

WSJ: Skyline Views: 'Skyscraper' at Chicago's Museum of Contemporary Art