void traversePolyNodes(int array[][COL], PolyNode * start) {
PolyNode * current = start;
int i, j = 1;
char x;
while(current != NULL) {
generatePolygon(array, current->XCoord, current->YCoord, current->numVertex);
current = current->next;
}
printGrid(array);
}
QuillImageFilter *RedEyeDetection::generate(const QuillImage &image) const
{
// No reference image given; no operations possible.
if (image == QuillImage())
return 0;
// Scale the search rectangle from full-image coordinates to current
// image.
QRect rect = getStartingRectangle(image.size(), image.fullImageSize());
// Detect best possible starting point
QPoint center = locateStartingPoint(image, rect);
// No possible red-eye pixels found - aborting (this should
// generally not happen unless you select the blue sky or
// something)
if (center == QPoint())
return 0;
// Generate legal area around center
int radius = priv->eyeRadius * qMin(image.size().width(), image.size().height()) /
qMin(image.fullImageSize().width(), image.fullImageSize().height());
QRect area = QRect(center.x()-radius, center.y()-radius,
radius*2+1, radius*2+1);
area &= image.rect();
// Flood fill around selected center
// If overflows, tighten the criteria and try again.
QSet<QPoint> redEye;
for (int phase = 0; phase < 5; phase++)
{
setThreshold(phase);
redEye = expandRedEye(image, center, area);
if (!redEye.isEmpty())
break;
}
// Still overflows - abandon
if (redEye.isEmpty())
return 0;
QPolygon polygon = generatePolygon(area, redEye);
// For some reason, polygon was empty (this should never happen)
if (polygon == QPolygon())
return 0;
// If this was a preview, scale the plugin to big-picture coordinates
if ((image.fullImageSize() != QSize()) && image.fullImageSize() != image.size())
polygon = scalePolygon(polygon, image.size(), image.fullImageSize());
// All is well.
QuillImageFilter *filter =
QuillImageFilterFactory::createImageFilter(QuillImageFilter::Name_RedEyeReduction);
if (!filter)
return 0;
filter->setOption(QuillImageFilter::SelectionArea, polygon);
return filter;
}
