+ int conversion_threshold_disp_mode_;
+
+ vector<float> value_at_pixel_pos_;
+ float value_at_hover_pos_;
+ float prev_value_at_pixel_; // Only used during lookup table update
+ float min_value_at_pixel_, max_value_at_pixel_; // Only used during lookup table update
+ int current_pixel_pos_; // Only used during lookup table update