diff --git a/app/scanner2/dialog_imgproc_adjust.cpp b/app/scanner2/dialog_imgproc_adjust.cpp
index df1c4f22..26cb01b3 100644
--- a/app/scanner2/dialog_imgproc_adjust.cpp
+++ b/app/scanner2/dialog_imgproc_adjust.cpp
@@ -138,9 +138,9 @@ void Dialog_ImgProc_Adjust::on_buttonBox_accepted()
     saveCfgValue("adjust", "preview", ui->cbtn_preview->isChecked());
     saveCfgValue("adjust", "applyImg", ui->cbtn_applyImg->isChecked());
 
-    saveCfgValue("adjust", "brightness", m_brightness);
-    saveCfgValue("adjust", "contrast", m_contrast);
-    char gamma[32];
-    sprintf(gamma, "%f", m_gamma);
-    saveCfgValue("adjust", "gamma", QString(gamma));
+//    saveCfgValue("adjust", "brightness", m_brightness);
+//    saveCfgValue("adjust", "contrast", m_contrast);
+//    char gamma[32];
+//    sprintf(gamma, "%f", m_gamma);
+//    saveCfgValue("adjust", "gamma", QString(gamma));
 }
diff --git a/app/scanner2/widget_imgproc_sidebar.cpp b/app/scanner2/widget_imgproc_sidebar.cpp
index cae27b6e..59b0f01a 100644
--- a/app/scanner2/widget_imgproc_sidebar.cpp
+++ b/app/scanner2/widget_imgproc_sidebar.cpp
@@ -84,7 +84,22 @@ void Widget_Imgproc_SideBar::on_pbtn_restoreDefault_clicked()
 
 void Widget_Imgproc_SideBar::on_pbtn_ok_clicked()
 {
+    disconnect(ui->spin_brightness, SIGNAL(valueChanged(int)), this, SLOT(on_spin_brightness_valueChanged(int)));
+    disconnect(ui->spin_contrast, SIGNAL(valueChanged(int)), this, SLOT(on_spin_contrast_valueChanged(int)));
+    disconnect(ui->dspin_gamma, SIGNAL(valueChanged(double)), this, SLOT(on_dspin_gamma_valueChanged(double)));
+    disconnect(ui->slider_gamma, SIGNAL(valueChanged(int)), this, SLOT(on_slider_gamma_valueChanged(int)));
+
+    on_pbtn_restoreDefault_clicked();
+    ui->slider_brightness->setValue(0);
+    ui->slider_contrast->setValue(0);
+    ui->slider_gamma->setValue(0);
+
     emit finish(true);
+
+    connect(ui->spin_brightness, SIGNAL(valueChanged(int)), this, SLOT(on_spin_brightness_valueChanged(int)));
+    connect(ui->spin_contrast, SIGNAL(valueChanged(int)), this, SLOT(on_spin_contrast_valueChanged(int)));
+    connect(ui->dspin_gamma, SIGNAL(valueChanged(double)), this, SLOT(on_dspin_gamma_valueChanged(double)));
+    connect(ui->slider_gamma, SIGNAL(valueChanged(int)), this, SLOT(on_slider_gamma_valueChanged(int)));
 }
 
 void Widget_Imgproc_SideBar::on_pbtn_cancel_clicked()
diff --git a/modules/twainui/hg_settingdialog.cpp b/modules/twainui/hg_settingdialog.cpp
index 4df22359..70fbeda0 100644
--- a/modules/twainui/hg_settingdialog.cpp
+++ b/modules/twainui/hg_settingdialog.cpp
@@ -2785,7 +2785,6 @@ void hg_settingdialog::updateSchemeFromUi(gb::sane_config_schm* schm)
                 SANE_Fixed init = 0;
 
                 m_saneAPI.sane_control_option_api(m_devHandle, i, SANE_ACTION_GET_VALUE, &init, &method);
-                float vv = SANE_UNFIX(init);
                 schm->config_changed(i, (char*)&init, sizeof(init));
             }
             else if (opt->type == SANE_TYPE_BOOL)