diff --git a/coffee-ocr.jpg b/coffee-ocr.jpg
new file mode 100644
index 0000000..6eac1b7
Binary files /dev/null and b/coffee-ocr.jpg differ
diff --git a/ocr.py b/ocr.py
index b184de9..857f6f2 100644
--- a/ocr.py
+++ b/ocr.py
@@ -3,7 +3,8 @@ import pytesseract
 import numpy as np
 from pytesseract import Output
 
-img_source = cv2.imread('images/coffee.jpg')
+# img_source = cv2.VideoCapture(0)
+img_source = cv2.imread('./coffee-ocr.jpg')
 
 
 def get_grayscale(image):
@@ -23,26 +24,31 @@ def canny(image):
     return cv2.Canny(image, 100, 200)
  
  
-gray = get_grayscale(img_source)
-thresh = thresholding(gray)
-opening = opening(gray)
-canny = canny(gray)
- 
-for img in [img_source, gray, thresh, opening, canny]:
-    d = pytesseract.image_to_data(img, output_type=Output.DICT)
-    n_boxes = len(d['text'])
- 
-    # back to RGB
-    if len(img.shape) == 2:
-        img = cv2.cvtColor(img, cv2.COLOR_GRAY2RGB)
- 
-    for i in range(n_boxes):
-        if int(d['conf'][i]) > 60:
-            (text, x, y, w, h) = (d['text'][i], d['left'][i], d['top'][i], d['width'][i], d['height'][i])
-            # don't show empty text
-            if text and text.strip() != "":
-                img = cv2.rectangle(img, (x, y), (x + w, y + h), (0, 255, 0), 2)
-                img = cv2.putText(img, text, (x, y - 10), cv2.FONT_HERSHEY_SIMPLEX, 1.2, (0, 255, 0), 3)
- 
-    cv2.imshow('img', img)
-    cv2.waitKey(0)
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+def test_performance():
+    gray = get_grayscale(img_source)
+    thresh = thresholding(gray)
+    opening = opening(gray)
+    canny = canny(gray)
+    
+    for img in [img_source, gray, thresh, opening, canny]:
+        d = pytesseract.image_to_data(img, output_type=Output.DICT)
+        print(d.keys())
+
+        n_boxes = len(d['text'])
+    
+        # back to RGB
+        if len(img.shape) == 2:
+            img = cv2.cvtColor(img, cv2.COLOR_GRAY2RGB)
+    
+        for i in range(n_boxes):
+            if int(d['conf'][i]) > 60:
+                (text, x, y, w, h) = (d['text'][i], d['left'][i], d['top'][i], d['width'][i], d['height'][i])
+                # don't show empty text
+                if text and text.strip() != "":
+                    img = cv2.rectangle(img, (x, y), (x + w, y + h), (0, 255, 0), 2)
+                    img = cv2.putText(img, text, (x, y - 10), cv2.FONT_HERSHEY_SIMPLEX, 1.2, (0, 255, 0), 3)
+    
+        cv2.imshow('img', img)
+        cv2.waitKey(0)
+
+print(pytesseract.image_to_data(img_source, output_type=Output.DICT)['text'])
\ No newline at end of file