diff --git a/core/dplugins/editor/enhance/hotpixels/hotpixelstool.cpp b/core/dplugins/editor/enhance/hotpixels/hotpixelstool.cpp
index 6bce451047..524fbf73d8 100644
--- a/core/dplugins/editor/enhance/hotpixels/hotpixelstool.cpp
+++ b/core/dplugins/editor/enhance/hotpixels/hotpixelstool.cpp
@@ -1,301 +1,311 @@
 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2005-03-27
  * Description : a digiKam image tool for fixing dots produced by
  *               hot/stuck/dead pixels from a CCD.
  *
  * Copyright (C) 2005-2020 by Gilles Caulier <caulier dot gilles at gmail dot com>
  * Copyright (C) 2005-2006 by Unai Garro <ugarro at users dot sourceforge dot net>
  *
  * This program is free software; you can redistribute it
  * and/or modify it under the terms of the GNU General
  * Public License as published by the Free Software Foundation;
  * either version 2, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * ============================================================ */
 
 #include "hotpixelstool.h"
 
 // Qt includes
 
 #include <QGridLayout>
 #include <QLabel>
 #include <QPolygon>
 #include <QProgressBar>
 #include <QPushButton>
 #include <QIcon>
 #include <QApplication>
 #include <QPointer>
 
 // KDE includes
 
 #include <klocalizedstring.h>
 #include <ksharedconfig.h>
 #include "kconfiggroup.h"
 
 // Local includes
 
 #include "blackframelistview.h"
 #include "dcombobox.h"
 #include "daboutdata.h"
 #include "dimg.h"
 #include "dimgfiltermanager.h"
 #include "editortooliface.h"
 #include "editortoolsettings.h"
 #include "hotpixelfixer.h"
 #include "imagedialog.h"
 #include "imageiface.h"
 #include "imageregionwidget.h"
 
 namespace DigikamEditorHotPixelsToolPlugin
 {
 
 class Q_DECL_HIDDEN HotPixelsTool::Private
 {
 public:
 
     explicit Private()
       : blackFrameButton(nullptr),
         progressBar(nullptr),
         filterMethodCombo(nullptr),
         blackFrameListView(nullptr),
         previewWidget(nullptr),
         gboxSettings(nullptr)
     {
     }
 
     static const QString configGroupName;
     static const QString configLastBlackFrameFileEntry;
     static const QString configFilterMethodEntry;
 
     QPushButton*         blackFrameButton;
     QProgressBar*        progressBar;
     QList<HotPixel>      hotPixelsList;
 
     QUrl                 blackFrameURL;
 
     DComboBox*           filterMethodCombo;
 
     BlackFrameListView*  blackFrameListView;
     ImageRegionWidget*   previewWidget;
     EditorToolSettings*  gboxSettings;
 };
 
 const QString HotPixelsTool::Private::configGroupName(QLatin1String("hotpixels Tool"));
 const QString HotPixelsTool::Private::configLastBlackFrameFileEntry(QLatin1String("Last Black Frame File"));
 const QString HotPixelsTool::Private::configFilterMethodEntry(QLatin1String("Filter Method"));
 
 // --------------------------------------------------------
 
 HotPixelsTool::HotPixelsTool(QObject* const parent)
     : EditorToolThreaded(parent),
       d(new Private)
 {
     setObjectName(QLatin1String("hotpixels"));
     setToolName(i18n("Hot Pixels"));
     setToolIcon(QIcon::fromTheme(QLatin1String("hotpixels")));
 
     // -------------------------------------------------------------
 
     d->gboxSettings         = new EditorToolSettings(nullptr);
     d->gboxSettings->setButtons(EditorToolSettings::Default|
                                 EditorToolSettings::Ok|
                                 EditorToolSettings::Cancel|
                                 EditorToolSettings::Try);
 
     QGridLayout* const grid = new QGridLayout(d->gboxSettings->plainPage());
 
     QLabel* const filterMethodLabel = new QLabel(i18n("Filter:"), d->gboxSettings->plainPage());
     d->filterMethodCombo            = new DComboBox(d->gboxSettings->plainPage());
     d->filterMethodCombo->addItem(i18nc("average filter mode", "Average"));
     d->filterMethodCombo->addItem(i18nc("linear filter mode", "Linear"));
     d->filterMethodCombo->addItem(i18nc("quadratic filter mode", "Quadratic"));
     d->filterMethodCombo->addItem(i18nc("cubic filter mode", "Cubic"));
     d->filterMethodCombo->setDefaultIndex(HotPixelFixer::QUADRATIC_INTERPOLATION);
 
     d->blackFrameButton = new QPushButton(i18n("Black Frame..."), d->gboxSettings->plainPage());
     d->blackFrameButton->setIcon(QIcon::fromTheme(QLatin1String("document-open")));
     d->blackFrameButton->setWhatsThis(i18n("Use this button to add a new black frame file which will "
                                            "be used by the hot pixels removal filter.") );
 
     d->blackFrameListView = new BlackFrameListView(d->gboxSettings->plainPage());
 
     // -------------------------------------------------------------
 
     const int spacing = d->gboxSettings->spacingHint();
 
     grid->addWidget(filterMethodLabel,     0, 0, 1, 1);
     grid->addWidget(d->filterMethodCombo,  0, 1, 1, 1);
     grid->addWidget(d->blackFrameButton,   0, 2, 1, 1);
     grid->addWidget(d->blackFrameListView, 1, 0, 2, 3);
     grid->setRowStretch(3, 10);
     grid->setContentsMargins(spacing, spacing, spacing, spacing);
     grid->setSpacing(spacing);
 
     // -------------------------------------------------------------
 
     d->previewWidget = new ImageRegionWidget;
 
     setToolSettings(d->gboxSettings);
     setToolView(d->previewWidget);
     setPreviewModeMask(PreviewToolBar::AllPreviewModes);
 
     // -------------------------------------------------------------
 
     connect(d->filterMethodCombo, SIGNAL(activated(int)),
             this, SLOT(slotPreview()));
 
     connect(d->blackFrameButton, SIGNAL(clicked()),
             this, SLOT(slotAddBlackFrame()));
 
     connect(d->blackFrameListView, SIGNAL(signalBlackFrameSelected(QList<HotPixel>,QUrl)),
             this, SLOT(slotBlackFrame(QList<HotPixel>,QUrl)));
 }
 
 HotPixelsTool::~HotPixelsTool()
 {
     delete d;
 }
 
 void HotPixelsTool::registerFilter()
 {
     DImgFilterManager::instance()->addGenerator(new BasicDImgFilterGenerator<HotPixelFixer>());
 }
 
+#ifndef __clang_analyzer__
+// NOTE: disable false positive report from scan build about "item" instance creation
+
 void HotPixelsTool::readSettings()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     KConfigGroup group        = config->group(d->configGroupName);
     d->blackFrameURL          = QUrl::fromLocalFile(group.readEntry(d->configLastBlackFrameFileEntry, QString()));
     d->filterMethodCombo->setCurrentIndex(group.readEntry(d->configFilterMethodEntry,  d->filterMethodCombo->defaultIndex()));
 
     if (d->blackFrameURL.isValid())
     {
         EditorToolIface::editorToolIface()->setToolStartProgress(i18n("Loading: "));
         QPointer<BlackFrameListViewItem> item = new BlackFrameListViewItem(d->blackFrameListView, d->blackFrameURL);
 
         connect(item, SIGNAL(signalLoadingProgress(float)),
                 this, SLOT(slotLoadingProgress(float)));
 
         connect(item, SIGNAL(signalLoadingComplete()),
                 this, SLOT(slotLoadingComplete()));
     }
 }
 
+#endif
+
 void HotPixelsTool::writeSettings()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     KConfigGroup group        = config->group(d->configGroupName);
     group.writeEntry(d->configLastBlackFrameFileEntry, d->blackFrameURL.url());
     group.writeEntry(d->configFilterMethodEntry,       d->filterMethodCombo->currentIndex());
     group.sync();
 }
 
 void HotPixelsTool::slotLoadingProgress(float v)
 {
     EditorToolIface::editorToolIface()->setToolProgress((int)(v*100));
 }
 
 void HotPixelsTool::slotLoadingComplete()
 {
     EditorToolIface::editorToolIface()->setToolStopProgress();
 }
 
 void HotPixelsTool::slotResetSettings()
 {
     d->filterMethodCombo->blockSignals(true);
     d->filterMethodCombo->slotReset();
     d->filterMethodCombo->blockSignals(false);
 }
 
+#ifndef __clang_analyzer__
+// NOTE: disable false positive report from scan build about "item" instance creation
+
 void HotPixelsTool::slotAddBlackFrame()
 {
     QUrl url = ImageDialog::getImageURL(qApp->activeWindow(), d->blackFrameURL, i18n("Select Black Frame Image"));
 
     if (!url.isEmpty())
     {
         // Load the selected file and insert into the list.
 
-        d->blackFrameURL = url;
+        d->blackFrameURL                      = url;
         d->blackFrameListView->clear();
         QPointer<BlackFrameListViewItem> item = new BlackFrameListViewItem(d->blackFrameListView, d->blackFrameURL);
 
         connect(item, SIGNAL(signalLoadingProgress(float)),
                 this, SLOT(slotLoadingProgress(float)));
 
         connect(item, SIGNAL(signalLoadingComplete()),
                 this, SLOT(slotLoadingComplete()));
     }
 }
 
+#endif
+
 void HotPixelsTool::preparePreview()
 {
     DImg image              = d->previewWidget->getOriginalRegionImage();
     int interpolationMethod = d->filterMethodCombo->currentIndex();
 
     QList<HotPixel> hotPixelsRegion;
     QRect area = d->previewWidget->getOriginalImageRegionToRender();
 
     for (QList<HotPixel>::const_iterator it = d->hotPixelsList.constBegin() ;
          it != d->hotPixelsList.constEnd() ; ++it)
     {
         HotPixel hp = (*it);
 
         if (area.contains( hp.rect ))
         {
             hp.rect.moveTopLeft(QPoint( hp.rect.x()-area.x(), hp.rect.y()-area.y() ));
             hotPixelsRegion.append(hp);
         }
     }
 
     setFilter(dynamic_cast<DImgThreadedFilter*>(new HotPixelFixer(&image, this, hotPixelsRegion, interpolationMethod)));
 }
 
 void HotPixelsTool::prepareFinal()
 {
     int interpolationMethod = d->filterMethodCombo->currentIndex();
 
     ImageIface iface;
     setFilter(dynamic_cast<DImgThreadedFilter*>(new HotPixelFixer(iface.original(), this, d->hotPixelsList, interpolationMethod)));
 }
 
 void HotPixelsTool::setPreviewImage()
 {
     d->previewWidget->setPreviewImage(filter()->getTargetImage());
 }
 
 void HotPixelsTool::setFinalImage()
 {
     ImageIface iface;
     iface.setOriginal(i18n("Hot Pixels Correction"), filter()->filterAction(), filter()->getTargetImage());
 }
 
 void HotPixelsTool::slotBlackFrame(const QList<HotPixel>& hpList, const QUrl& blackFrameURL)
 {
     d->blackFrameURL = blackFrameURL;
     d->hotPixelsList = hpList;
 
     QPolygon pointList(d->hotPixelsList.size());
     QList <HotPixel>::const_iterator it;
     int i = 0;
 
     for (it = d->hotPixelsList.constBegin() ; it != d->hotPixelsList.constEnd() ; ++it, ++i)
     {
         pointList.setPoint(i, (*it).rect.center());
     }
 
     d->previewWidget->setHighLightPoints(pointList);
 
     slotPreview();
 }
 
 } // namespace DigikamEditorHotPixelsToolPlugin