Merge pull request #11073 from geordi:qt-window-pixel-values

7 years ago · dd259503c1
parent 85db11b70d eb3969e244
commit dd259503c1
1 changed files with 5 additions and 0 deletions
--- a/modules/highgui/src/window_QT.cpp
+++ b/modules/highgui/src/window_QT.cpp
@ -3094,6 +3094,11 @@ void DefaultViewPort::drawImgRegion(QPainter *painter)
            if (nbChannelOriginImage==CV_8UC1)
            {
                QString val = tr("%1").arg(qRed(rgbValue));
+                int pixel_brightness_value = qRed(rgbValue);
+                int text_brightness_value = 0;
+
+                text_brightness_value = pixel_brightness_value > 127 ? pixel_brightness_value - 127 : 127 + pixel_brightness_value;
+                painter->setPen(QPen(QColor(text_brightness_value, text_brightness_value, text_brightness_value)));
                painter->drawText(QRect(pos_in_view.x(),pos_in_view.y(),pixel_width,pixel_height),
                    Qt::AlignCenter, val);
            }