accela: work even at zero slider position

Issue: #96

2 files changed, 4 insertions, 4 deletions

diff --git a/ftnoir_filter_accela/ftnoir_accela_filtercontrols.ui b/ftnoir_filter_accela/ftnoir_accela_filtercontrols.ui
index 4c836ac9..9860b54c 100644
--- a/ftnoir_filter_accela/ftnoir_accela_filtercontrols.ui
+++ b/ftnoir_filter_accela/ftnoir_accela_filtercontrols.ui
@@ -92,7 +92,7 @@ background:none;</string>
       <item row="2" column="1">
        <widget class="QSlider" name="translation_slider">
         <property name="maximum">
-         <number>100</number>
+         <number>99</number>
         </property>
         <property name="pageStep">
          <number>5</number>
@@ -111,7 +111,7 @@ background:none;</string>
       <item row="1" column="1">
        <widget class="QSlider" name="rotation_slider">
         <property name="maximum">
-         <number>100</number>
+         <number>99</number>
         </property>
         <property name="pageStep">
          <number>5</number>
diff --git a/ftnoir_filter_accela/ftnoir_filter_accela.cpp b/ftnoir_filter_accela/ftnoir_filter_accela.cpp
index 733af902..cb01bccc 100644
--- a/ftnoir_filter_accela/ftnoir_filter_accela.cpp
+++ b/ftnoir_filter_accela/ftnoir_filter_accela.cpp
@@ -40,8 +40,8 @@ void FTNoIR_Filter::filter(const double* input, double *output)
         return;
     }
 
-    const double rot_t = 10. * s.rot_threshold / 100.;
-    const double trans_t = 10. * s.trans_threshold / 100.;
+    const double rot_t = 10. * (1+s.rot_threshold) / 100.;
+    const double trans_t = 10. * (1+s.trans_threshold) / 100.;
 
     const double dt = t.elapsed() * 1e-9;
     t.start();