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A description of the pixel distance and directions. The high grey grid indicates one pixel of an image object, eight middle (low) grey grids indicate pixels that are one (two) pixel(s) distant from the high grey grid in four directions.

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2Â¥: Originally posted by gznelab at 2012-09-12 01:41:03
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caucharm: ½ð±Ò+5, ·­ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú, ллÄã 2012-09-14 16:14:06
¸Ï½ÅÕâλͬѧ¿ÉÒÔÁ˽âÁ½¸öÊõÓ4 neighborhood pixels and 8 neighborhood pixels   https://en.wikipedia.org/wiki/Pixel_connectivity

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Fig. X. [Title to be determined according to the theme that you wanted to explain] The central white grid represents one pixel of an object. It has 8 neighborhood pixels that are represented by 8 grids in dark gray.

ÒòΪÓÐÓõ½neighborhood pixel£¬ËùÒÔ¾ÍÖªµÀÓëÖмäµÄÄǸö¸ßÁÁ¶ÈµÄÏñËØÖ»ÓÐÒ»¸öpixelµÄ¾àÀë¡£
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