Tune HSV in mask_tuner

tuto_vision/mask_tuner.py

+import cv2
+import numpy as np
+
+def souris(event, x, y, flags, param):
+    global lo, hi, color, hsv_px
+
+    if event == cv2.EVENT_MOUSEMOVE:
+        # Conversion des trois couleurs RGB sous la souris en HSV
+        px = frame[y,x]
+        px_array = np.uint8([[px]])
+        hsv_px = cv2.cvtColor(px_array,cv2.COLOR_BGR2HSV)
+
+    if event==cv2.EVENT_MBUTTONDBLCLK:
+        color=image[y, x][0]
+
+    if event==cv2.EVENT_LBUTTONDOWN:
+        if color>5:
+            color-=1
+
+    if event==cv2.EVENT_RBUTTONDOWN:
+        if color<250:
+            color+=1
+
+    # lo[1]=color-10
+    # hi[1]=color+10
+
+color=100
+
+lo=np.array([58-20, 50, 20])
+hi=np.array([58+20, 255,255])
+
+color_info=(0, 0, 255)
+
+cap=cv2.VideoCapture(0)
+cv2.namedWindow('Camera')
+cv2.setMouseCallback('Camera', souris)
+hsv_px = [0,0,0]
+
+# Creating morphological kernel
+kernel = np.ones((3, 3), np.uint8)
+
+while True:
+    ret, frame=cap.read()
+    image=cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
+    mask=cv2.inRange(image, lo, hi)
+    mask=cv2.erode(mask, kernel, iterations=1)
+    mask=cv2.dilate(mask, kernel, iterations=1)
+    image2=cv2.bitwise_and(frame, frame, mask= mask)
+    cv2.putText(frame, "Couleur: {:d}".format(color), (10, 30), cv2.FONT_HERSHEY_DUPLEX, 1, color_info, 1, cv2.LINE_AA)
+
+    # Affichage des composantes HSV sous la souris sur l'image
+    pixel_hsv = " ".join(str(values) for values in hsv_px)
+    font = cv2.FONT_HERSHEY_SIMPLEX
+    cv2.putText(frame, "px HSV: "+pixel_hsv, (10, 260),
+               font, 1, (255, 255, 255), 1, cv2.LINE_AA)
+
+    cv2.imshow('Camera', frame)
+    cv2.imshow('image2', image2)
+    cv2.imshow('Mask', mask)
+
+    if cv2.waitKey(1)&0xFF==ord('q'):
+        break
+cap.release()
+cv2.destroyAllWindows()
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