Merge branch 'main' of https://arnweb.nl/gitea/arne/EV5_Beeldherk_Bomen

src/suite.py

@@ -93,6 +93,31 @@ class MainApp:
             self.axs[column, row].grid()
             self.axs[column, row].legend()
             
+    def drawCannyHM(self, img, column, row):
+        self.axs[column, row].clear()
+        canny_max = 500
+        canny_step = 20
+
+        results = [[] for x in range((int)(canny_max / canny_step))]
+
+        for th1 in range(0, canny_max, canny_step):
+            for th2 in range(0, canny_max, canny_step):
+                # Canny Edge Detection
+                edges = cv2.Canny(image=img, threshold1=th1, threshold2=th2)
+                
+                w_res = cv2.countNonZero(edges)
+                y_ind = (int)(th1 / canny_step)
+                x_ind = (int)(th2 / canny_step)
+                
+                results[y_ind].append(w_res)
+                
+                # print(f"Result at thres {th1}, {th2}; \tIndex {y_ind}, {x_ind} \t= {w_res}")
+                # print(results[y_ind])
+        
+        self.axs[column, row].imshow(results)
+        self.axs[column, row].xaxis.set_major_formatter(lambda x, pos: str(x*canny_step))
+        self.axs[column, row].yaxis.set_major_formatter(lambda x, pos: str(x*canny_step))
+    
     def update(self, event=None):
         path = self.img_path.get()
         print(path)
@@ -112,9 +137,6 @@ class MainApp:
             # Get all user vars
             ct1 = self.canny_thr1.get()
             ct2 = self.canny_thr2.get()            
-            
-            print(f"canny 1: {ct1}, canny2: {ct2}")
-            
             br = self.blur_rate.get()
             sxy = self.sobel_select.get()
             size = self.img_size.get()
@@ -182,6 +204,8 @@ class MainApp:
             if img_hsv is not None:
                 self.drawHist(img_hsv, ('H', 'S', 'V'), 0, 1)
             
+            self.drawCannyHM(img, 1, 1)
+                
             plt.show(block=False)
             
             # Draw all output images