Adjusted template extraction for folder parsing

src/experiments/template_extraction/script.py

@@ -3,11 +3,14 @@ Script to extract 10cm x 10cm images from the template
 Accounts for (minor) rotation.  
 
 command:
-python template.py input_directory
+python template.py input_folder output_folder 
+
+volgorde maakt uit! heb niet die fancy library gebruikt
 
 known bugs:
+- plaatjes worden soms de verkeerde kant op gedraaid, ze staan wel recht
+    maar 90 graden gedraaid
 - plaatjes zijn niet persé exact 10x10 cm als perspectief niet precies goed is
-- gekke crash bij herextractie van datapunten, zie todo
 
 Auteurs: 
 Tom Selier
@@ -21,7 +24,7 @@ import os
 ## Parameters ##
 
 # [%] Schaal output in percentages 
-SCHAAL = 100         
+SCHAAL = 25         
 
 
 # [mm] 120 op calib a4, 180 op template
@@ -79,44 +82,30 @@ def findMin(array, index):
             min_val = element[index]
     return min_val
 
-input_directory = sys.argv[1]
+input_folder = sys.argv[1]
+output_folder = sys.argv[2]
 
-if(not os.path.isdir(input_directory)):
-    print(input_directory)
-    print("Input directory not found")
+if(not os.path.isdir(input_folder)):
+    print("Input folder not found")
     exit()
 
+if(not os.path.isdir(output_folder)):
+    print("Output folder not found")
+    exit()
+
+
 ### ARUCO PARAMETERS ###
 detector_params = cv2.aruco.DetectorParameters()
-detector_params.adaptiveThreshWinSizeMax = 150 # Takes longer, but better chance of finding markers
 dictionary = cv2.aruco.getPredefinedDictionary(cv2.aruco.DICT_ARUCO_ORIGINAL)  
 detector = cv2.aruco.ArucoDetector(dictionary, detector_params)
 
 ### IMAGE CONVERSIE ###
-for folder in os.listdir(input_directory):
-    if folder.endswith('.py'):
-        print("Skipping", folder)
-        continue
-    
-    if folder.endswith('.jpg'):
-        continue
-
-    if SAVE:
-        path = os.path.join(input_directory, folder)
-        if (path).endswith("_out"):
-            continue
-        out_folder = path  + "_out"
-        if (os.path.exists(out_folder) == False):
-            if VERBOSE:
-                print("Created folder: " + out_folder)
-            os.mkdir(out_folder)
-
-    for file in os.listdir(os.path.join(input_directory, folder)):
+for file in os.listdir(input_folder):
     ## Laad plaatjes in kleur ##
-        filename = input_directory + '/' + folder + '/' + file
+    filename = input_folder + '/' + file
+    out_filename = output_folder + '/' + file
     img = cv2.imread(filename, 1)
 
-        assert img is not None, "Image path is wrong " + filename
     if VERBOSE:
         print(file)  
     
@@ -124,10 +113,7 @@ for folder in os.listdir(input_directory):
     (h, w) = img.shape[:2] 
     x_scale = int(w/100*SCHAAL)
     y_scale = int(h/100*SCHAAL)
-        if SCHAAL != 100:
     small_img = cv2.resize(img, (x_scale, y_scale))
-        else:
-            small_img = img
     (h_small, w_small) = small_img.shape[:2]
     if VERBOSE:
         print("Van %dx%dpx naar %dx%dpx geschaald"%(h,w,h_small,w_small))
@@ -138,16 +124,7 @@ for folder in os.listdir(input_directory):
         small_img, 
         corners, 
         ids)
-        
-        if ids is None:
-            print("Skipping: ", filename)
-            print("=============================================")
-            continue
-        if len(ids) != 4:
-            print("Skipping: ", filename)
-            print("=============================================")
-            continue 
-
+    assert len(ids) == 4, "Not enough markers found in " + str(file)
     if VERBOSE:
         print("%d markers gedetecteerd" %len(ids))
 
@@ -161,7 +138,7 @@ for folder in os.listdir(input_directory):
         cv2.circle(
             new_image, 
             (x[i], y[i]), 
-                radius=5, 
+            radius=3, 
             color=(0, 254, 254),
             thickness=-1)
         i += 1
@@ -174,7 +151,7 @@ for folder in os.listdir(input_directory):
 
     ## Draai de plaatjes recht ##
     x0 = x[np.where(ids == 0)[0][0]]
-        x1 = x[np.where(ids == 1)[0][0]] # TODO: Fix whatevers happening here
+    x1 = x[np.where(ids == 1)[0][0]]
     x_dif = x0-x1
 
     y0 = y[np.where(ids == 0)[0][0]]
@@ -234,9 +211,7 @@ for folder in os.listdir(input_directory):
         cv2.imshow('window', warp_img)
         cv2.imshow('cropped', crop_img)
     if SAVE:
-            out_path = out_folder + "/" + file
-            print("Saving to:", out_path)
-            cv2.imwrite(out_path, crop_img) 
+        cv2.imwrite(out_filename, crop_img) 
     if PAUZE or PLAATJES:
         cv2.waitKey(0)
     if VERBOSE: