fix #7 #31 fix the result on view when the check box "keep border provide by the watershed" is checked. see #31 for more information.

Author: abreheret

src/image_canvas.cpp

@@ -83,9 +83,9 @@ void ImageCanvas::saveMask() {
 	_mask.id.save(_mask_file);
 	if (!_watershed.id.isNull()) {
         QImage watershed = _watershed.id;
-        if (!_ui->checkbox_border_ws->isChecked()) {
-            watershed = removeBorder(_watershed.id, _ui->id_labels);
-        }
+//         if (!_ui->checkbox_border_ws->isChecked()) {
+//             watershed = removeBorder(_watershed.id, _ui->id_labels);
+//         }
 		watershed.save(_watershed_file);
 		QFileInfo file(_img_file);
 		QString color_file = file.dir().absolutePath() + "/" + file.baseName() + "_color_mask.png";

src/main_window.cpp

@@ -165,7 +165,11 @@ void MainWindow::changeLabel(QListWidgetItem* current, QListWidgetItem* previous
 }
 
 void MainWindow::runWatershed(ImageCanvas * ic) {
-	ic->setWatershedMask(watershed(ic->getImage(), ic->getMask().id));
+    QImage iwatershed = watershed(ic->getImage(), ic->getMask().id);
+    if (!checkbox_border_ws->isChecked()) {
+        iwatershed = removeBorder(iwatershed, id_labels);
+    }
+	ic->setWatershedMask(iwatershed);
 	checkbox_watershed_mask->setCheckState(Qt::CheckState::Checked);
 	ic->update();
 }
@@ -202,7 +206,7 @@ void MainWindow::updateConnect(const ImageCanvas * ic) {
 	connect(undo_action, SIGNAL(triggered()), ic, SLOT(undo()));
 	connect(redo_action, SIGNAL(triggered()), ic, SLOT(redo()));
 	connect(save_action, SIGNAL(triggered()), ic, SLOT(saveMask()));
-    connect(checkbox_border_ws, SIGNAL(clicked()), ic, SLOT(update()));
+    connect(checkbox_border_ws, SIGNAL(clicked()), this, SLOT(runWatershed()));
 
 }
 
@@ -217,7 +221,7 @@ void MainWindow::allDisconnnect(const ImageCanvas * ic) {
     disconnect(undo_action, SIGNAL(triggered()), ic, SLOT(undo()));
     disconnect(redo_action, SIGNAL(triggered()), ic, SLOT(redo()));
     disconnect(save_action, SIGNAL(triggered()), ic, SLOT(saveMask()));
-    disconnect(checkbox_border_ws, SIGNAL(clicked()), ic, SLOT(update()));
+    disconnect(checkbox_border_ws, SIGNAL(clicked()), this, SLOT(runWatershed()));
 }
 
 ImageCanvas * MainWindow::newImageCanvas() {

src/utils.cpp

@@ -37,7 +37,12 @@ void idToColor(const QImage &image_id, const Id2Labels& id_label, QImage *result
 				*pix = label->color.red(); pix++;
 				*pix = label->color.green(); pix++;
 				*pix = label->color.blue();
-			}
+            } else {
+                pix = &line_out[x];
+                pix[0] = 255;
+                pix[1] = 255;
+                pix[2] = 255;
+            }
 		}
 	}
 }
@@ -105,7 +110,7 @@ cv::Mat convertMat32StoRGBC3(const cv::Mat& mat) {
 QImage watershed(const QImage& qimage, const QImage & qmarkers_mask) {
 	cv::Mat image = qImage2Mat(qimage);
 	cv::Mat markers_mask = qImage2Mat(qmarkers_mask);
-	cv::Mat markers(markers_mask.size(), CV_32S);
+	cv::Mat markers = cv::Mat::zeros(markers_mask.size(), CV_32S);
 	for (int y = 0; y < markers_mask.rows; y++) {
 		int* mark = markers.ptr<int>(y);
 		cv::Vec3b* mask = markers_mask.ptr<cv::Vec3b>(y);