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How to extract (x,y) coordinates of the boundary of a .tif image?
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How to extract (x,y) coordinates of the boundary of a .tif image?
#20
Oh? Usually, the pixel colours should be different enough.
bgcol is 0 when I ask for the numeric value here, referring to black.
The pixels whose borderstate has been proven have colour 175, the is a light grey.
The 'stillunprovenpixels' are dark grey instead with a colour of 75. (That's a total of approximately a dozen.)
And I set the value for the 'pixel in question' to 255, that should be pure white. The first one is in column 19, the lower end of four vertical border pixels.

Strange Huh . If necessary, I will have to change to RGB colours, I guess.
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Messages In This Thread
RE: How to extract (x,y) coordinates of the boundary of a .tif image? - by merlem - Feb-16-2017, 03:46 PM

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