def drawRectangleOnMouseCallback(self, window_title, color, thickness):
# Global variables for rectangle drawing using mouse callbacks.
drawing = False
ix, iy = -1, -1
# Note: it is important to draw the rectangle from top -> bottom, left -> right.
# color - list of three colors (R,G,B).
# thickness - thickness of the circumference of the rectangle. -1 will fill the rectangle.
# Drawing function.
def draw_rectangle(event, x, y, flags, param):
global ix, iy, drawing
if event == cv.EVENT_LBUTTONDOWN:
drawing = True
ix, iy = x, y
elif event == cv.EVENT_MOUSEMOVE:
if drawing:
cv.rectangle(self.image, (ix, iy), (x, y), color,
thickness)
elif event == cv.EVENT_LBUTTONUP:
drawing = False
cv.rectangle(self.image, (ix, iy), (x, y), color, thickness)
# Connecting the image display with the drawing function.
cv.namedWindow(winname=window_title)
cv.setMouseCallback(window_title, draw_rectangle)
# Showing image with OpenCV.
imageDisplay(window_name=window_title, image=self.image)
def drawCircleOnMouseCallback(self, window_title, radius, color,
thickness):
# radius - Radius of the circle.
# color - list of three colors (R,G,B).
# thickness - thickness of the circumference of the rectangle. -1 will fill the rectangle.
# Drawing function.
def draw_circle(event, x, y, flags, param):
if event == cv.EVENT_LBUTTONDOWN:
# Circle will have user selected color.
cv.circle(self.image, (x, y), radius, color, thickness)
elif event == cv.EVENT_RBUTTONDOWN:
# Circle will have alternative color.
cv.circle(self.image, (x, y), radius, np.flip(color),
thickness)
# Connecting the image display with the drawing function.
cv.namedWindow(winname=window_title)
cv.setMouseCallback(window_title, draw_circle)
# Showing image with OpenCV.
imageDisplay(window_name=window_title, image=self.image)
def showConcatImages(self, window_name, scale):
log.debug("Displaying both the original images and the filtered one")
imageDisplay(window_name=window_name,
image=self.ConcatMultipleImages(scale=scale))
def showImage(self, window_name):
log.debug("Displaying the current image")
imageDisplay(window_name=window_name, image=self.image)
def showOriginalImage(self, window_name):
log.debug("Displaying the original image")
imageDisplay(window_name=window_name, image=self.original_image)