Create px-size.py

Pythons/px-size.py

@@ -0,0 +1,24 @@
+def jpeg_res(filename):
+   """"This function prints the resolution of the jpeg image file passed into it"""
+
+   # open image for reading in binary mode
+   with open(filename,'rb') as img_file:
+
+       # height of image (in 2 bytes) is at 164th position
+       img_file.seek(163)
+
+       # read the 2 bytes
+       a = img_file.read(2)
+
+       # calculate height
+       height = (a[0] << 8) + a[1]
+
+       # next 2 bytes is width
+       a = img_file.read(2)
+
+       # calculate width
+       width = (a[0] << 8) + a[1]
+
+   print("The resolution of the image is",width,"x",height)
+
+jpeg_res("img1.jpg")