PgUp и PgDown

main.py

@@ -1,6 +1,7 @@
 from PyQt5.QtWidgets import *
 from PyQt5.QtGui import QPixmap
 import sys
+from PyQt5 import QtCore
 from functions.get_img_map import get_img_map
 
 
@@ -11,7 +12,27 @@ class Window(QMainWindow):
         self.setWindowTitle("Image")
         self.setGeometry(0, 0, 600, 450)
         self.label = QLabel(self)
-        get_img_map()
+        self.delta = 0.02
+        get_img_map(self.delta)
+        self.pixmap = QPixmap('image.png')
+        self.label.setPixmap(self.pixmap)
+        self.label.resize(self.pixmap.width(), self.pixmap.height())
+        self.show()
+
+    def keyPressEvent(self, event):
+        try:
+            if event.key() == QtCore.Qt.Key_Up:
+                self.delta += 0.01
+                self.update()
+            if event.key() == QtCore.Qt.Key_Down:
+                self.delta -= 0.01
+                self.update()
+            event.accept()
+        except Exception as e:
+            print(e)
+
+    def update(self):
+        get_img_map(self.delta)
         self.pixmap = QPixmap('image.png')
         self.label.setPixmap(self.pixmap)
         self.label.resize(self.pixmap.width(), self.pixmap.height())