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#X text -355 -157 Create window and render;
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#X text 376 538 ( default 3 );
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#X text -357 321 written by Yves Degoyon ( ydegoyon@gmail.com );
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#X text 323 399 value to correct the theshold;
#X text -366 -80 pix_opencv_threshold :;
#X text 340 486 MaxValue (default 255);
#X text 317 435 inverse mode ( default 0 );
#X text -366 -56 Thresholding is used to segment an image by setting
all pixels whose intensity values are above a threshold to a foreground
value and all the remaining pixels to a background value.;
#X text -367 -10 Whereas the conventional thresholding operator uses
a global threshold for all pixels \, adaptive thresholding changes
the threshold dynamically over the image. This more sophisticated version
of thresholding can accommodate changing lighting conditions in the
image \, e.g. those occurring as a result of a strong illumination
gradient or shadows.;
#X text -338 129 - zero otherwise;
#X text -364 92 Adaptive thresholding sets a pixel dst(x \, y) value
to:;
#X text -338 114 - MaxValue (see MaxValue inlet) if src(x \, y) > T(x
\, y);
#X text -360 162 Where T(x \, y) is a threshold calculated individually
for each pixel. For the method ADAPTIVE_THRESH_MEAN_C the threshold
value is the mean of a blockSize x blockSize (see blocksize inlet)
neighborhood of (x \, y) \, minus dim parameter value (see dim message).
;
#X text -360 238 For the method ADAPTIVE_THRESH_GAUSSIAN_C the threshold
value is the weighted sum (i.e. cross-correlation with a Gaussian window)
of a blockSize x blockSize neighborhood of (x \, y) \, minus dim parameter
value.;
#X text 341 524 blockSize;
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#X text 206 328 Thresholding method ( default 0 );
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#X text 306 345 0 = CV_ADAPTIVE_THRESH_MEAN_C;
#X text 306 355 1 = CV_ADAPTIVE_THRESH_GAUSSIAN_C;
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