diff --git a/BMPEditor/CMakeLists.txt.user b/BMPEditor/CMakeLists.txt.user
index 0648363..7d2284d 100644
--- a/BMPEditor/CMakeLists.txt.user
+++ b/BMPEditor/CMakeLists.txt.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 12.0.2, 2024-02-12T09:42:06. -->
+<!-- Written by QtCreator 12.0.2, 2024-02-12T22:13:04. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
diff --git a/BMPEditor/Editor/imagehistogramwidget.cpp b/BMPEditor/Editor/imagehistogramwidget.cpp
index e82e975..461dbb9 100644
--- a/BMPEditor/Editor/imagehistogramwidget.cpp
+++ b/BMPEditor/Editor/imagehistogramwidget.cpp
@@ -66,8 +66,13 @@ void ImageHistogramWidget::computeHistogram() {
     histogramRed.resize(256, 0);
     histogramGreen.resize(256, 0);
     histogramBlue.resize(256, 0);
+
     maxFrequency = 0;
 
+    int maxR = 0;
+    int maxG = 0;
+    int maxB = 0;
+
     for (size_t i = 0; i < image->dataLen; i += 3) {
         int r = (int)(image->pixels[i]);
         int g = (int)(image->pixels[i + 1]);
@@ -75,10 +80,12 @@ void ImageHistogramWidget::computeHistogram() {
         histogramRed[r]++;
         histogramGreen[g]++;
         histogramBlue[b]++;
-        maxFrequency = std::max(maxFrequency, histogramRed[r]);
-        maxFrequency = std::max(maxFrequency, histogramGreen[g]);
-        maxFrequency = std::max(maxFrequency, histogramBlue[b]);
+        maxR = std::max(maxR, histogramRed[r]);
+        maxG = std::max(maxG, histogramGreen[g]);
+        maxB = std::max(maxB, histogramBlue[b]);
     }
+
+    maxFrequency = (int)((maxR + maxG + maxB) / 3.0);
 }
 
 void ImageHistogramWidget::updateDone()
diff --git a/BMPEditor/Editor/workspace.cpp b/BMPEditor/Editor/workspace.cpp
index d4b5dea..203fc7b 100644
--- a/BMPEditor/Editor/workspace.cpp
+++ b/BMPEditor/Editor/workspace.cpp
@@ -255,18 +255,20 @@ void Workspace::paintEvent(QPaintEvent *event) {
 
         /****************************************************************************************************************/
         //-------OBRAZEK-------------------------
-        painter.save();
-        // aplikace offsetu
-        painter.translate(offset);
-        // aplikace scale
-        painter.scale(this->scale, this->scale);
-        // vykresleni obrazku
-        this->image->paintEvent(painter);
-        // vraceni zpet do puvodniho stavu
-        painter.restore();
-        // outline
-        painter.setPen(Qt::black);
-        painter.drawRect(offset.x(), offset.y(), this->image->width * this->scale, this->image->height * this->scale);
+        if(this->isEnabled()) {
+            painter.save();
+            // aplikace offsetu
+            painter.translate(offset);
+            // aplikace scale
+            painter.scale(this->scale, this->scale);
+            // vykresleni obrazku
+            this->image->paintEvent(painter);
+            // vraceni zpet do puvodniho stavu
+            painter.restore();
+            // outline
+            painter.setPen(Qt::black);
+            painter.drawRect(offset.x(), offset.y(), this->image->width * this->scale, this->image->height * this->scale);
+        }
         //-------OBRAZEK-------------------------
 
         /****************************************************************************************************************/