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check for black pixel at center x/y

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Former-commit-id: d91f422f55638418d2517d91b1c925880d7ca448
This commit is contained in:
wisc 2016-01-02 02:31:13 +01:00
parent d5529e86df
commit 469ea42f49
1 changed files with 41 additions and 0 deletions
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41
include/blackborder/BlackBorderDetector.h
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@ -61,11 +61,51 @@ namespace hyperion
template <typename Pixel_T>
BlackBorder process(const Image<Pixel_T> & image)
{
// only test the topleft third of the image
int width = image.width() / 3;
int height = image.height() / 3;
int xCenter = image.width() / 2;
int yCenter = image.height() / 2;
// int maxSize = std::max(width, height);
int firstNonBlackXPixelIndex = -1;
int firstNonBlackYPixelIndex = -1;
// find first X pixel of the image
for (int x = 0; x < width; ++x)
{
const Pixel_T & color = image(x, yCenter);
if (!isBlack(color))
{
firstNonBlackXPixelIndex = x;
break;
}
}
// find first Y pixel of the image
for (int y = 0; y < height; ++y)
{
const Pixel_T & color = image(xCenter, y);
if (!isBlack(color))
{
firstNonBlackYPixelIndex = y;
break;
}
}
/*
// only test the topleft third of the image
int width = image.width() /3;
int height = image.height() / 3;
int maxSize = std::max(width, height);
int firstNonBlackXPixelIndex = -1;
int firstNonBlackYPixelIndex = -1;
@ -103,6 +143,7 @@ namespace hyperion
break;
}
}
*/
// Construct result
BlackBorder detectedBorder;