This is because of the change in the degree of similarity of the sketch (drawn with a larger brush) to the image.

这是因为草图(用较大的画笔绘制)与此图像的相似性程度有所改变。

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Using any image as reference, this can then be used as a template for a brush, sprayed on or molded onto the creation.

你可以用任何图片作为笔刷模板，就可以参照这张图片在你的作品上进行喷涂或建模。

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We position the brush over the canvas, centering the brush precisely over the point where that distant detail should appear in the image.

我们把画笔定位于画布上，画笔的中心严格的对应于远处的细节应该在图像上占据的那一点。

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But he never managed to brush off his image as a heartless, arrogant technocrat.

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CNN: Brickbats for Bill