How to read outer boundary pixel color value?

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Ibrahim Thorig
Ibrahim Thorig 2014-4-25
评论： Image Analyst 2014-4-28
please help me to read the pixel color value of outer boundary of an image. I mean, I want know the color of the outer boundary pixel. Below image is an scan image.

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回答（1 个）

Image Analyst
Image Analyst 2014-4-27
Which pixel is the boundary? Do you mean the gray pixels? All of them or just any of them, say the one at row 1, column 1? Or do you mean the white border" of the snapshot? Or the white, torn, exposed paper? Why don' tyou repost with an arrow pointing to the pixel you want. Anyway, did you try impixel()?

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